A mechanized tea garden fertilization and irrigation system and control method thereof

Abstract

The present application provides a mechanized tea garden fertilization and irrigation system and a control method thereof, which determines the permeability control index in the soil of the target tea garden through the effective layer thickness of the soil in the target tea garden and the liquid fertilizer permeability information in the liquid fertilizer irrigation data; determines the liquid fertilizer loss characteristics of the fertilization and irrigation machine in mobile irrigation according to the liquid fertilizer irrigation data, and then determines the irrigation regulation relationship in mobile irrigation according to the permeability control index and the liquid fertilizer loss characteristics; determines the permeability state of the fertilization and irrigation machine during mobile irrigation in each tea growth period according to each wet layer depth and the permeability control index, and determines the irrigation step information in the tea garden fertilization and irrigation control according to each permeability state and the irrigation regulation relationship; when the fertilization and irrigation machine is used to fertilize and irrigate the target tea garden in each tea growth period, the irrigation step information is used to control the water flow step of the fertilization and irrigation machine for fertilization and irrigation. Based on the above scheme, the water and fertilizer utilization rate of the fertilization and irrigation machine can be improved.

Description

Technical Field

[0001] The present application relates to the field of mechanized agricultural technology, and more specifically, to a mechanized tea garden fertilization and irrigation system and a control method thereof. Background Art

[0002] With the advancement of agricultural modernization, traditional artificial fertilization and irrigation methods can no longer meet the needs of efficient management of large-scale tea gardens. The introduction of mechanized and intelligent technologies will help improve agricultural production efficiency, reduce labor intensity, and meet the requirements of large-scale production. Tea gardens are usually located in mountainous or hilly areas. The water resources in these areas are unevenly distributed and difficult to manage. Traditional irrigation methods often lead to water waste or fertilizer loss, affecting tea production and quality. Mechanized systems can accurately control the amount of water and fertilizer, reduce waste, and improve resource utilization efficiency.

[0003] In mechanized fertilization and irrigation in tea gardens, the water flow step distance of the fertilization and irrigation machine is fixed and cannot be adjusted in real time according to factors such as the actual soil moist layer depth and liquid fertilizer loss, which may lead to uneven irrigation and fertilization. Some areas may be over-irrigated or over-fertilized, while other areas may be insufficient in water and fertilizer, thus affecting the uniform growth of tea trees and the yield and quality of tea. The fixed step distance may also lead to waste of water and fertilizer resources, thereby increasing production costs, and cannot adapt to the fluctuations in rainfall or temperature in the external environment of the tea garden during different tea growing periods, which will further reduce the efficiency of irrigation or fertilization. Therefore, how to achieve adaptive adjustment of the water flow step distance in the fertilization and irrigation machine to improve the water and fertilizer utilization rate of the fertilization and irrigation machine is a difficult problem faced by the industry. Summary of the invention

[0004] The present application provides a mechanized tea garden fertilization and irrigation system and a control method thereof, which can comprehensively evaluate the depth of the moistening layer in each tea growth period and the loss of liquid fertilizer in the transportation of the fertilization and irrigation machine to achieve adaptive adjustment of the water flow step, thereby improving the water and fertilizer utilization rate of the fertilization and irrigation machine.

[0005] In a first aspect, the present application provides a mechanized tea garden fertilization and irrigation control method, comprising:

[0006] Collect the liquid fertilizer irrigation records of the fertilizer irrigation machine for mechanized mobile irrigation of the target tea garden each time, and then obtain the liquid fertilizer irrigation data;

[0007] Determine the infiltration control index in the soil of the target tea garden according to the effective layer thickness of the soil in the target tea garden and the liquid fertilizer infiltration information in the liquid fertilizer irrigation data;

[0008] Extracting features of liquid fertilizer residual information in the liquid fertilizer irrigation data to obtain liquid fertilizer loss features of the fertilization irrigation machine in mobile irrigation, and then determining the irrigation control relationship between the liquid fertilizer irrigation amount and the water flow step distance in mobile irrigation based on the infiltration control index and the liquid fertilizer loss features;

[0009] Obtaining the depth of the wet layer of the target tea garden at each tea growth period, and determining the penetration state of the fertilizer irrigation machine when performing mobile irrigation at each tea growth period according to each wet layer depth and the penetration control index;

[0010] The irrigation step information in the tea garden fertilization and irrigation control is determined according to each infiltration state and the irrigation regulation relationship. When a fertilizer irrigation machine is used to fertilize and irrigate the target tea garden during each tea growth period, the irrigation step information is used to control the water flow step of the fertilizer irrigation machine for fertilization and irrigation.

[0011] In some embodiments, determining the infiltration control index in the soil of the target tea garden by using the effective layer thickness of the soil in the target tea garden and the liquid fertilizer infiltration information in the liquid fertilizer irrigation data specifically includes:

[0012] For various aqueous fertilizers, obtaining liquid fertilizer penetration information of the aqueous fertilizers from the liquid fertilizer irrigation data;

[0013] Determining the penetration rate of the aqueous solution fertilizer in each effective soil layer according to the liquid fertilizer penetration information;

[0014] The permeability of the aqueous solution fertilizer in the soil of the target tea garden is determined by all the permeation rates and the effective layer thickness of the soil in the target tea garden, and then the permeability of various aqueous solution fertilizers in the soil of the target tea garden is obtained;

[0015] The infiltration control index in the target tea garden soil was determined based on all permeabilities.

[0016] In some embodiments, feature extraction is performed on the liquid fertilizer residual information in the liquid fertilizer irrigation data to obtain the liquid fertilizer loss feature of the fertilizer irrigation machine in mobile irrigation, specifically including:

[0017] For each mechanized mobile irrigation of the fertilizer irrigation machine, obtaining liquid fertilizer residual information during the mechanized mobile irrigation from the liquid fertilizer irrigation data;

[0018] Determine a residual curve of a fertilizer irrigation machine during mechanized mobile irrigation according to the liquid fertilizer residual information;

[0019] Extracting the residual features in the fertilizer irrigation machine during mechanized mobile irrigation from the residual curve, and then obtaining the residual features in the fertilizer irrigation machine during each mechanized mobile irrigation;

[0020] The liquid fertilizer loss characteristics of the fertigation irrigation machine in mobile irrigation are determined based on all the residual characteristics.

[0021] In some embodiments, determining the irrigation control relationship between the liquid fertilizer irrigation amount and the water flow step distance in mobile irrigation based on the infiltration control index and the liquid fertilizer loss characteristic specifically includes:

[0022] Determine all water flow steps of the fertilizer irrigation machine in mobile irrigation;

[0023] Determine the penetration depth of the aqueous fertilizer at each water flow step according to the penetration control index;

[0024] Determine the liquid fertilizer irrigation amount at the corresponding water flow step according to each penetration depth and the liquid fertilizer loss characteristics;

[0025] The irrigation control relationship between the liquid fertilizer irrigation amount and the water flow step in mobile irrigation is determined according to the liquid fertilizer irrigation amount at each water flow step.

[0026] In some embodiments, determining the penetration state of the fertilizer irrigation machine during mobile irrigation in each tea growth period according to each wet layer depth and the penetration control index specifically includes:

[0027] For each tea growing period, obtain the soil moisture content of the target tea garden during the tea growing period;

[0028] Determine the irrigation and transportation volume of the fertilizer irrigation machine during the tea growing period according to the depth of the wet layer during the tea growing period and the soil moisture content;

[0029] Determining the transportation time of the fertilizer irrigation machine during the tea growing period according to the irrigation transportation volume and the transportation rate of the fertilizer irrigation machine;

[0030] The penetration state of the fertilizer irrigation machine when it performs mobile irrigation during the tea growing period is determined according to the transportation time and the penetration control index, and then the penetration state of the fertilizer irrigation machine when it performs mobile irrigation during each tea growing period is obtained.

[0031] In some embodiments, determining the irrigation step information in the tea garden fertilization irrigation control according to each infiltration state and the irrigation regulation relationship specifically includes:

[0032] Collect the soil moisture content of the target tea garden within a specified period of time, and then obtain the soil moisture curve;

[0033] Determine the irrigation area rotation cycle in each tea growing period according to the soil moisture curve and each infiltration state, and then determine the liquid fertilizer irrigation amount in each irrigation area rotation cycle;

[0034] Determine the irrigation step distance in the rotation cycle of each irrigation area through the irrigation regulation relationship and each liquid fertilizer irrigation amount;

[0035] The irrigation step information in tea garden fertilization and irrigation control is determined based on the irrigation step under the rotation cycle of each irrigation area.

[0036] In some embodiments, the fertilizer irrigation machine is a mechanized automatic irrigation machine that integrates water and fertilizer.

[0037] In a second aspect, the present application provides a mechanized tea garden fertilization and irrigation system, comprising:

[0038] The collection module is used to collect the liquid fertilizer irrigation records of the fertilizer irrigation machine for mechanized mobile irrigation of the target tea garden each time, and then obtain the liquid fertilizer irrigation data;

[0039] A processing module, used for determining the infiltration control index in the soil of the target tea garden according to the effective layer thickness of the soil in the target tea garden and the liquid fertilizer infiltration information in the liquid fertilizer irrigation data;

[0040] The processing module is also used to extract features of liquid fertilizer residual information in the liquid fertilizer irrigation data to obtain liquid fertilizer loss features of the fertilization irrigation machine in mobile irrigation, and then determine the irrigation control relationship between the liquid fertilizer irrigation amount and the water flow step distance in mobile irrigation based on the infiltration control index and the liquid fertilizer loss features;

[0041] The processing module is also used to obtain the depth of the wet layer of the target tea garden in each tea growth period, and determine the penetration state of the fertilizer irrigation machine when performing mobile irrigation in each tea growth period according to each wet layer depth and the penetration control index;

[0042] The execution module is used to determine the irrigation step information in the tea garden fertilization and irrigation control according to each infiltration state and the irrigation regulation relationship. When a fertilizer irrigation machine is used to fertilize and irrigate the target tea garden in each tea growth period, the irrigation step information is used to control the water flow step of the fertilizer irrigation machine for fertilization and irrigation.

[0043] In a third aspect, the present application provides a computer device, comprising a memory and a processor, wherein the memory is used to store a computer program, and the processor is used to call and run the computer program from the memory, so that the computer device executes the above-mentioned mechanized tea garden fertilization and irrigation control method.

[0044] In a fourth aspect, the present application provides a computer-readable storage medium, in which instructions or codes are stored. When the instructions or codes are run on a computer, the computer implements the above-mentioned mechanized tea garden fertilization and irrigation control method when executed.

[0045] The technical solution provided by the embodiments disclosed in this application has the following beneficial effects:

[0046] In a mechanized tea garden fertilization and irrigation system and control method thereof provided by the present application, liquid fertilizer irrigation records of each mechanized mobile irrigation of a target tea garden by a fertilizer irrigation machine are collected to obtain liquid fertilizer irrigation data; the permeability control index in the soil of the target tea garden is determined by the effective layer thickness of the soil in the target tea garden and the liquid fertilizer permeability information in the liquid fertilizer irrigation data; feature extraction is performed on the liquid fertilizer residual information in the liquid fertilizer irrigation data to obtain the liquid fertilizer loss feature of the fertilizer irrigation machine in mobile irrigation, and then the irrigation regulation relationship between the liquid fertilizer irrigation amount and the water flow step distance in mobile irrigation is determined by the permeability control index and the liquid fertilizer loss feature; the wet layer depth of the target tea garden in each tea growth period is obtained, and the permeability state of the fertilizer irrigation machine when performing mobile irrigation in each tea growth period is determined according to each wet layer depth and the permeability control index; the irrigation step information in the tea garden fertilization and irrigation control is determined according to each permeability state and the irrigation regulation relationship, and when the fertilizer irrigation machine is used to fertilize and irrigate the target tea garden in each tea growth period, the irrigation step information is used to control the water flow step distance of the fertilizer irrigation machine for fertilization and irrigation.

[0047] It can be seen that in the present application, the irrigation step information in the fertilization and irrigation control of the tea garden can be determined according to each infiltration state and the irrigation regulation relationship. When the fertilizer irrigation machine is used to fertilize and irrigate the target tea garden in each tea growth period, the irrigation step information is used to control the water flow step of the fertilizer irrigation machine for fertilization and irrigation; first, the irrigation regulation relationship can be determined to obtain the matching relationship between the liquid fertilizer irrigation amount and the water flow step, which is convenient for the subsequent precise regulation of the irrigation step of the fertilizer irrigation machine according to the irrigation amount, so as to achieve uniform distribution of liquid fertilizer and avoid waste of liquid fertilizer, thereby improving the water and fertilizer utilization efficiency of the fertilizer irrigation machine. Among them, feature extraction can identify the loss characteristics of liquid fertilizer during transportation and application, so as to facilitate the determination of a more accurate irrigation regulation relationship between the liquid fertilizer irrigation amount and the water flow step, and the infiltration control index can be determined to obtain a quantified The index of the penetration characteristics of liquid fertilizer in the soil makes it easier to adjust the liquid fertilizer irrigation amount and irrigation position through the penetration control index to ensure that the liquid fertilizer can effectively reach the root system of the tea tree and improve the water-fertilizer utilization rate of the liquid fertilizer by the fertilization irrigation machine; secondly, the penetration state of the liquid fertilizer in each tea growth period can be determined to obtain the soil penetration conditions in each growth period, so as to accurately judge the soil's absorption of liquid fertilizer, match the irrigation step distance with the actual water demand, improve the fertilization efficiency, and facilitate the subsequent adjustment of the water flow step distance in combination with the wet layer depth in each tea growth period, thereby further improving the water-fertilizer utilization rate in the tea garden; in summary, based on the above scheme, the wet layer depth in each tea growth period and the liquid fertilizer loss in the transportation of the fertilization irrigation machine can be comprehensively evaluated to achieve adaptive adjustment of the water flow step distance, thereby improving the water-fertilizer utilization rate of the fertilization irrigation machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0049] Figure 1 is an exemplary flow chart of a mechanized tea garden fertilization and irrigation control method according to some embodiments of the present application;

[0050] Figure 2 is a schematic diagram of a process for determining liquid fertilizer loss characteristics according to some embodiments of the present application;

[0051] Figure 3 is a schematic diagram of a process for determining the permeation state according to some embodiments of the present application;

[0052] Figure 4 It is a schematic diagram of exemplary hardware and / or software of a mechanized tea garden fertilization and irrigation system according to some embodiments of the present application;

[0053] Figure 5 It is a structural schematic diagram of a computer device for implementing a mechanized tea garden fertilization and irrigation control method according to some embodiments of the present application. DETAILED DESCRIPTION

[0054] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0055] The embodiment of the present application provides a mechanized tea garden fertilization and irrigation system and a control method thereof, the core of which is to determine the permeability control index in the soil of the target tea garden through the effective layer thickness of the soil in the target tea garden and the liquid fertilizer permeability information in the liquid fertilizer irrigation data; determine the liquid fertilizer loss characteristics of the fertilization and irrigation machine in mobile irrigation according to the liquid fertilizer irrigation data, and then determine the irrigation regulation relationship in mobile irrigation according to the permeability control index and the liquid fertilizer loss characteristics; determine the permeability state of the fertilization and irrigation machine during mobile irrigation in each tea growth period according to each wet layer depth and the permeability control index, and determine the irrigation step information in the tea garden fertilization and irrigation control according to each permeability state and the irrigation regulation relationship; when the fertilization and irrigation machine is used to fertilize and irrigate the target tea garden in each tea growth period, the irrigation step information is used to control the water flow step of the fertilization and irrigation machine for fertilization and irrigation. Based on the above scheme, the water and fertilizer utilization rate of the fertilization and irrigation machine can be improved.

[0056] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods. Figure 1 , which is an exemplary flow chart of a mechanized tea garden fertilization and irrigation control method according to some embodiments of the present application, and the mechanized tea garden fertilization and irrigation control method mainly includes the following steps:

[0057] In step 101, the liquid fertilizer irrigation record of each mechanized mobile irrigation of the target tea garden by the fertilizer irrigation machine is collected to obtain liquid fertilizer irrigation data.

[0058] It should be noted that in the present application, the fertilizer irrigation machine is a mechanized automatic irrigation machine integrating water and fertilizer; mechanization refers to the use of mechanical equipment to replace or assist manual operation in the production, operation or work process to improve efficiency, reduce labor intensity and reduce costs; liquid fertilizer irrigation data is a data set consisting of liquid fertilizer irrigation records for each mechanized mobile irrigation, and the liquid fertilizer irrigation record includes liquid fertilizer category (aqueous solution fertilizer), initial moisture content of tea garden soil, irrigation depth curve, liquid fertilizer irrigation amount and liquid fertilizer transportation amount of the fertilizer irrigation machine.

[0059] In specific implementation, the liquid fertilizer irrigation records of each mechanized mobile irrigation of the target tea garden by the fertilizer irrigation machine within a specified time period (the default is the most recent three years) can be collected, and the collection of all liquid fertilizer irrigation records can be used as liquid fertilizer irrigation data.

[0060] It should be noted that in the present application, the liquid fertilizer transport volume of the fertilizer irrigation machine is collected once every specified interval (the default is 2 minutes), and the liquid fertilizer irrigation volume is collected after a specified delay time after each collection of the liquid fertilizer transport volume. The specified delay time is the liquid fertilizer transportation time of the fertilizer irrigation machine. A large number of experiments can be used to record the time from the start of liquid fertilizer transportation to the completion of liquid fertilizer transportation by the fertilizer irrigation machine, and the average value of all experimental results can be used as the specified delay time.

[0061] In step 102, the permeability control index in the soil of the target tea garden is determined according to the effective layer thickness of the soil in the target tea garden and the liquid fertilizer permeability information in the liquid fertilizer irrigation data.

[0062] It should be noted that, in the present application, the effective layer thickness refers to the area in the soil of the target tea garden where moisture can be effectively absorbed and utilized by the tea trees. The effective layer thickness reflects the soil's moisture storage capacity and permeability characteristics. The effective layer thickness is an important parameter for evaluating soil moisture management. Understanding the effective layer thickness of the soil in the target tea garden can accurately evaluate the soil's moisture retention capacity and permeability, which is crucial for optimizing fertilization and irrigation strategies, and can ensure that the tea trees obtain sufficient water and nutrients. In specific implementation, soil detection instruments (such as electromagnetic induction meters or underground detection radars) are used to measure the hierarchical structure information of the soil, and the sum of the thicknesses of each soil layer in the hierarchical structure information can be used as the effective layer thickness of the soil in the target tea garden.

[0063] In some embodiments, determining the infiltration control index in the soil of the target tea garden by using the effective layer thickness of the soil in the target tea garden and the liquid fertilizer infiltration information in the liquid fertilizer irrigation data can be achieved by the following steps:

[0064] For various aqueous fertilizers, obtaining liquid fertilizer penetration information of the aqueous fertilizers from the liquid fertilizer irrigation data;

[0065] Determining the penetration rate of the aqueous solution fertilizer in each effective soil layer according to the liquid fertilizer penetration information;

[0066] The permeability of the aqueous solution fertilizer in the soil of the target tea garden is determined by all the permeation rates and the effective layer thickness of the soil in the target tea garden, and then the permeability of various aqueous solution fertilizers in the soil of the target tea garden is obtained;

[0067] The infiltration control index in the target tea garden soil was determined based on all permeabilities.

[0068] It should be noted that, in the present application, the infiltration control index is a comprehensive indicator for quantifying the infiltration performance of liquid fertilizer in tea garden soil; the infiltration rate refers to the propagation speed of liquid fertilizer in the soil; the permeability is a quantitative value reflecting the diffusion effect of liquid fertilizer in different soil layers; the effective soil layer in the present application refers to the soil depth interval with different infiltration capabilities of liquid fertilizer in the target tea garden soil. In specific implementation, each soil layer in the hierarchical structure information of the target tea garden soil can be used as the effective soil layer.

[0069] In the specific implementation, first, for various aqueous solution fertilizers, all liquid fertilizer irrigation records of liquid fertilizer category as aqueous solution fertilizer are obtained from the liquid fertilizer irrigation data, and the collection of all liquid fertilizer irrigation records can be used as liquid fertilizer penetration information; secondly, for each effective soil layer, the irrigation depth curve of each liquid fertilizer irrigation record in the liquid fertilizer penetration information is obtained, and the penetration rate of the aqueous solution fertilizer in the effective soil layer is determined according to each irrigation depth curve, and the penetration rate of the aqueous solution fertilizer in each effective soil layer can be obtained in the above manner; then, the interval size of each effective soil layer is obtained as the range depth, and the sum of the products of the penetration rate of each effective soil layer and the range depth and the ratio of the effective layer thickness of the soil in the target tea garden can be used as the permeability of the aqueous solution fertilizer in the target tea garden soil, and the permeability of various aqueous solution fertilizers in the target tea garden soil can be obtained in the above manner; finally, the collection of all permeabilities can be used as the value range of the permeability control index in the target tea garden soil, and the permeability control index in the target tea garden soil can be obtained.

[0070] Preferably, in the above embodiment, the infiltration rate of the aqueous solution fertilizer in the effective soil layer is determined according to each irrigation depth curve and can be achieved in the following manner, namely: for each irrigation depth curve, the infiltration curve of the effective soil layer is intercepted in the irrigation depth curve, and the ratio of the irrigation depth to the irrigation time in the infiltration curve can be used as the irrigation infiltration rate of the irrigation depth curve in the effective soil layer. The irrigation infiltration rate of each irrigation depth curve in the effective soil layer can be obtained in the above manner, and the average value of all irrigation infiltration rates can be used as the infiltration rate of the aqueous solution fertilizer in the effective soil layer. In order to improve the accuracy of the determined infiltration rate, in other embodiments, the initial moisture content of the tea garden soil can be obtained in the liquid fertilizer irrigation record corresponding to each irrigation depth curve, and the inverse of the initial moisture content can be used as the weight of the corresponding irrigation infiltration rate, and the weighted average of all irrigation infiltration rates is calculated as the infiltration rate of the aqueous solution fertilizer in the effective soil layer, which is not limited here.

[0071] In step 103, feature extraction is performed on the liquid fertilizer residual information in the liquid fertilizer irrigation data to obtain the liquid fertilizer loss characteristics of the fertilization irrigation machine in mobile irrigation, and then the irrigation control relationship between the liquid fertilizer irrigation amount and the water flow step in mobile irrigation is determined based on the infiltration control index and the liquid fertilizer loss characteristics.

[0072] In some embodiments, feature extraction is performed on the residual information of liquid fertilizer in the liquid fertilizer irrigation data to obtain the liquid fertilizer loss feature of the fertilization irrigation machine in mobile irrigation, and reference is made to Figure 2 The figure is a schematic diagram of a process for determining the loss characteristics of liquid fertilizer in some embodiments of the present application. In this embodiment, the loss characteristics of liquid fertilizer can be determined by the following steps:

[0073] In step 1031, for each mechanized mobile irrigation of the fertilizer irrigation machine, liquid fertilizer residual information during the mechanized mobile irrigation is obtained from the liquid fertilizer irrigation data;

[0074] In step 1032, a residual curve of a fertilizer irrigation machine during mechanized mobile irrigation is determined according to the liquid fertilizer residual information;

[0075] In step 1033, the residual features in the fertilizer irrigation machine during mechanized mobile irrigation are extracted from the residual curve, and then the residual features in the fertilizer irrigation machine during each mechanized mobile irrigation are obtained;

[0076] In step 1034, the liquid fertilizer loss characteristics of the fertilizer irrigation machine in mobile irrigation are determined based on all the residual characteristics.

[0077] It should be noted that, in the present application, the liquid fertilizer loss characteristic is a characteristic that comprehensively reflects the loss of liquid fertilizer during the mechanized mobile irrigation process; the liquid fertilizer residual information refers to the amount of liquid fertilizer remaining in the system that is not utilized after each mechanized mobile irrigation; the residual curve represents the curve of the liquid fertilizer residual amount changing with time during the mechanized mobile irrigation process of the fertilizer irrigation machine; the residual characteristic reflects the retention characteristics of liquid fertilizer during the mechanized mobile irrigation process.

[0078] In the specific implementation, first, for each mechanized mobile irrigation of the fertilizer irrigation machine, the liquid fertilizer irrigation record during the mechanized mobile irrigation is obtained from the liquid fertilizer irrigation data, and the set of the difference between the liquid fertilizer transportation volume and the liquid fertilizer irrigation volume of each fertilizer irrigation machine in the liquid fertilizer irrigation record can be used as the liquid fertilizer residual amount at the corresponding collection time, and the set of all liquid fertilizer residual amounts can be used as liquid fertilizer residual information; secondly, the collection time is used as the horizontal coordinate and the liquid fertilizer residual amount is used as the vertical coordinate to establish a two-dimensional spatial coordinate system, and all liquid fertilizer residual amounts in the liquid fertilizer residual information can be used to generate data points in the two-dimensional spatial coordinate system, and all data points in the two-dimensional spatial coordinate system are arranged in the order of the collection time. The residual curve of the fertilizer irrigation machine during mechanized mobile irrigation can be connected; then, the existing feature extraction algorithm can be used to extract the features of the residual curve as the residual features in the fertilizer irrigation machine during mechanized mobile irrigation. The residual features in the fertilizer irrigation machine during each mechanized mobile irrigation can be obtained in the above manner; finally, the existing clustering algorithm can be used to perform cluster analysis on all the residual features, and the results of the cluster analysis can be used as the liquid fertilizer loss features of the fertilizer irrigation machine in mobile irrigation. The cluster analysis can combine multiple residual features to evaluate the degree of loss of liquid fertilizer in the transportation of the fertilizer irrigation machine, so as to facilitate more accurate adjustment of the subsequent liquid fertilizer irrigation amount.

[0079] In some embodiments, the irrigation control relationship between the liquid fertilizer irrigation amount and the water flow step distance in mobile irrigation can be determined by the infiltration control index and the liquid fertilizer loss characteristic by the following steps:

[0080] Determine all water flow steps of the fertilizer irrigation machine in mobile irrigation;

[0081] Determine the penetration depth of the aqueous fertilizer at each water flow step according to the penetration control index;

[0082] Determine the liquid fertilizer irrigation amount at the corresponding water flow step according to each penetration depth and the liquid fertilizer loss characteristics;

[0083] The irrigation control relationship between the liquid fertilizer irrigation amount and the water flow step in mobile irrigation is determined according to the liquid fertilizer irrigation amount at each water flow step.

[0084] It should be noted that, in the present application, the irrigation control relationship represents the control correlation between the liquid fertilizer irrigation amount and the water flow step distance in mobile irrigation; the water flow step distance refers to the distance moved by the fertilizer irrigation machine during a mobile irrigation process, and the water flow step distance is a key variable for evaluating liquid fertilizer penetration and irrigation effect; the penetration depth represents the vertical depth of liquid fertilizer penetration in the tea garden soil at a specific water flow step distance, and the penetration depth reflects the ability of liquid fertilizer to effectively act on the crop root system.

[0085] In the specific implementation, first, the moving distance of the fertilizer irrigation machine during each of the last 10 fertilizer irrigations can be recorded, and the set of all the moving distances after deduplication can be used as all the water flow steps of the fertilizer irrigation machine in the mobile irrigation; secondly, for each water flow step, initialize a penetration simulation model of the fertilizer irrigation machine to the target tea garden, and use the water flow step as the distance each time the fertilizer irrigation machine moves in the penetration simulation model, and use the mean of all values ​​in the penetration control index as the penetration parameter of the penetration simulation model. Use the penetration simulation model to simulate the penetration process of the water flow step, and the soil depth in the simulation result can be used as the penetration depth of the aqueous solution fertilizer under the water flow step. The penetration depth of the aqueous solution fertilizer under each water flow step can be obtained in the above manner; then, for each water flow step, the square of half the water flow step can be used as each The area of ​​the irrigation area under the moving water step is calculated, and the normalization algorithm is used to scale the liquid fertilizer loss characteristics to the loss ratio of the liquid fertilizer transported in the fertilizer irrigation machine pipeline. The difference between 1 and the loss ratio can be used as the irrigation efficiency, and the ratio of the product of the irrigation area, the liquid fertilizer flow rate and the penetration depth under the water step to the irrigation efficiency can be used as the liquid fertilizer irrigation amount under the water step. The liquid fertilizer irrigation amount under each water step can be obtained in the above way; finally, the multivariate linear regression model is initialized, and the liquid fertilizer irrigation amount under each water step is used as the data source of the multivariate linear regression model. The multivariate linear regression model is used to perform regression analysis on the correlation between the liquid fertilizer irrigation amount and the water step in mobile irrigation, and the regression analysis results of the multivariate linear regression model can be used as the irrigation regulation relationship between the liquid fertilizer irrigation amount and the water step in mobile irrigation.

[0086] In step 104, the depth of the wet layer of the target tea garden in each tea growing period is obtained, and the penetration state of the fertilizer irrigation machine during mobile irrigation in each tea growing period is determined according to each wet layer depth and the penetration control index.

[0087] It should be noted that in the present application, the wet layer depth refers to the wet layer depth suitable for the growth of tea leaves in each tea growing period; the tea growing period refers to the different growth stages of tea leaves; in specific implementation, the wet layer depth of the target tea garden in each tea growing period can be obtained in the tea planting instructions.

[0088] In some embodiments, the penetration state of the fertilizer irrigation machine during mobile irrigation during each tea growth period is determined according to the depth of each wet layer and the penetration control index, referring to Figure 3 The figure is a schematic diagram of a process for determining the permeation state in some embodiments of the present application. In this embodiment, the permeation state can be determined by the following steps:

[0089] In step 1041, for each tea growing period, the soil moisture content of the target tea garden during the tea growing period is obtained;

[0090] In step 1042, the irrigation and transportation volume of the fertilizer irrigation machine during the tea growing period is determined according to the depth of the wet layer during the tea growing period and the soil moisture content;

[0091] In step 1043, the transportation time of the fertilizer irrigation machine during the tea growing period is determined according to the irrigation transportation volume and the transportation rate of the fertilizer irrigation machine;

[0092] In step 1044, the penetration state of the fertilizer irrigation machine during mobile irrigation during the tea growing period is determined based on the transportation time and the penetration control index, thereby obtaining the penetration state of the fertilizer irrigation machine during mobile irrigation during each tea growing period.

[0093] It should be noted that, in the present application, the infiltration state refers to the distribution of liquid fertilizer in the soil of the tea garden when the fertilizer irrigation machine performs mobile irrigation in each tea growth period. The infiltration state can be used to determine whether the irrigation has achieved the expected effect, thereby evaluating the utilization rate of liquid fertilizer for subsequent adjustment of the irrigation strategy; the soil moisture content refers to the proportion of water contained in the soil of the target tea garden, and the soil moisture content directly affects the irrigation demand and the efficiency of the infiltration process; the irrigation transportation volume refers to the liquid fertilizer demand in a unit area in each tea growth period.

[0094] In the specific implementation, firstly, for each tea growing period, the soil moisture content of the target tea garden during the tea growing period can be obtained by using sensors; secondly, the target moisture content of the tea garden soil during the tea growing period can be obtained in the tea planting instructions, and the difference between the target moisture content and the soil moisture content is used as the irrigation moisture difference, and the product of the irrigation moisture difference, the depth of the wet layer during the tea growing period and the area of ​​the irrigation area can be used as the irrigation transportation volume of the fertilizer irrigation machine during the tea growing period; then, the ratio of the irrigation transportation volume to the transportation rate of the fertilizer irrigation machine can be used as the transportation time of the fertilizer irrigation machine during the tea growing period; finally, a permeability assessment model is initialized, and the transportation time is used as the permeability assessment model. The transportation parameters of the fertilizer irrigation machine in the model are taken, and the various values ​​of the infiltration control index are used as the infiltration parameters of the liquid fertilizer in the infiltration assessment model. The infiltration assessment model is used to conduct a state assessment on the infiltration behavior of the liquid fertilizer irrigated by the fertilizer irrigation machine. The result of the state assessment can be used as the infiltration state of the fertilizer irrigation machine when it is mobile irrigation during the tea growth period. The infiltration state of the fertilizer irrigation machine during mobile irrigation during each tea growth period can be obtained in the above manner. The infiltration assessment model can be used to dynamically evaluate the infiltration state, which is convenient for the subsequent optimization of the irrigation strategy, ensuring that the soil of the target tea garden in different growth periods can effectively absorb the water and fertilizer resources provided by the fertilizer irrigation machine, and improving the utilization rate of liquid fertilizer in the target tea garden.

[0095] In step 105, the irrigation step information in the tea garden fertilization and irrigation control is determined according to each infiltration state and the irrigation regulation relationship. When a fertilizer irrigation machine is used to fertilize and irrigate the target tea garden in each tea growth period, the irrigation step information is used to control the water flow step of the fertilizer irrigation machine for fertilization and irrigation.

[0096] In some embodiments, the irrigation step information in the tea garden fertilization and irrigation control can be determined according to each infiltration state and the irrigation regulation relationship by the following steps:

[0097] Collect the soil moisture content of the target tea garden within a specified period of time, and then obtain the soil moisture curve;

[0098] Determine the irrigation area rotation cycle in each tea growing period according to the soil moisture curve and each infiltration state, and then determine the liquid fertilizer irrigation amount in each irrigation area rotation cycle;

[0099] Determine the irrigation step distance in the rotation cycle of each irrigation area through the irrigation regulation relationship and each liquid fertilizer irrigation amount;

[0100] The irrigation step information in tea garden fertilization and irrigation control is determined based on the irrigation step under the rotation cycle of each irrigation area.

[0101] It should be noted that in the present application, the irrigation step information is a data set of the interval distances in different irrigation area rotation cycles in the fertilization and irrigation of the target tea garden; the irrigation area rotation cycle refers to the time period for rotating each irrigation area in the irrigation plan of the target tea garden. The irrigation area rotation cycle is an important parameter for improving irrigation uniformity and resource utilization. By accurately calculating the irrigation area rotation cycle, it can be ensured that the liquid fertilizer irrigation machine can switch to the next irrigation area at the most appropriate time, thereby improving the overall irrigation uniformity and efficiency; the soil moisture curve represents a trend chart of the change in moisture content of the target tea garden soil during each liquid fertilizer irrigation; the irrigation step refers to the interval distance moved by the irrigation equipment during the irrigation process.

[0102] In specific implementation, first, the soil moisture content of the target tea garden is collected at each specified interval (the default is 20s) during each irrigation within a specified time period (the same as the specified time period in step 101), and all soil moisture contents can be plotted into a soil moisture curve in the order of the collection time; secondly, for each tea growing period, the existing statistical analysis method (for example, Richards equation) can be used to combine the soil moisture curve with the infiltration state during the growing period, and the optimal rotation time point of each irrigation area during the tea growing period can be identified as the irrigation area rotation time of the corresponding irrigation area. The set of all irrigation area rotation times can be used as the value range of the irrigation area rotation cycle during the tea growing period, and the irrigation area rotation cycle of the tea growing period can be obtained. The irrigation area rotation cycle of each tea growing period can be obtained in the above manner. For example, when the soil moisture content rises to a certain critical value (such as 50%) and the infiltration depth reaches the maximum absorption depth of the tea root system, switch to the next irrigation area for fertilization and irrigation. For each irrigation area Rotation cycle, obtain the irrigation area corresponding to each value of the irrigation area rotation cycle, the product of the wet layer depth, soil moisture content and irrigation area can be used as the liquid fertilizer irrigation value of each irrigation area, the set of all liquid fertilizer irrigation values ​​can be used as the value range of the liquid fertilizer irrigation amount under the irrigation area rotation cycle, and the liquid fertilizer irrigation amount under the rotation cycle of each irrigation area can be obtained in the above way; then, for each irrigation area rotation cycle, initialize a soil hydrodynamic model, take the irrigation regulation relationship as the regulation dependency of the soil hydrodynamic model, take the liquid fertilizer irrigation amount under the irrigation area rotation cycle as the irrigation target of the soil hydrodynamic model, use the soil hydrodynamic model to predict the infiltration area of ​​liquid fertilizer in the soil under the irrigation area rotation cycle, the size of the predicted infiltration area can be used as the irrigation step under the irrigation area rotation cycle, and the irrigation step under the rotation cycle of each irrigation area can be obtained in the above way; finally, the set of all irrigation step lengths can be used as the irrigation step length information in the tea garden fertilization and irrigation control.

[0103] It should be noted that the Richards equation is a partial differential equation used to describe the flow of water in the soil, especially the movement of water under unsaturated conditions. The Richards equation combines the hydraulic properties of the soil, such as moisture content, soil suction and hydraulic conductivity, and can accurately simulate the movement of water in the soil. The Richards equation is considered to be the standard equation for describing the movement of soil water in unsaturated areas; the soil hydrodynamic model is a mathematical model used to describe the movement and distribution of water in the soil. The soil hydrodynamic model can comprehensively consider the physical properties of the soil, the characteristics of liquid fertilizers, and external conditions (such as rainfall, irrigation, evaporation, etc.) to simulate the dynamic behavior of liquid fertilizers in the soil.

[0104] In some embodiments, using the irrigation step information to control the water flow step of the fertilizer irrigation machine for fertilization irrigation can be achieved by the following steps:

[0105] Get the irrigation time of the fertilizer irrigation machine when it moves in the current irrigation area;

[0106] Extracting an adaptive step distance from the irrigation step distance information according to the irrigation duration;

[0107] The water flow step of the fertilizer irrigation machine during irrigation and fertilization is adjusted according to the adaptive step.

[0108] In the specific implementation, first, the irrigation duration of the fertilization irrigation machine when it moves in the current irrigation area is obtained, and the irrigation duration refers to the total time spent by the fertilization irrigation machine to complete the irrigation task in the current irrigation area; then, when the fertilization irrigation machine moves, the irrigation area rotation cycle closest to the irrigation duration is obtained, and the irrigation step of the irrigation area rotation cycle in the irrigation step information is used as the adaptive step, and the adaptive step is an adaptive value used to guide the step adjustment of the irrigation machine; finally, the adaptive step can be used as the water flow step of the fertilization irrigation machine when it moves next time, to complete the adjustment of the water flow step of the fertilization irrigation machine during irrigation and fertilization.

[0109] In the present application, the irrigation step information in the fertilization and irrigation control of the tea garden can be determined according to each infiltration state and the irrigation regulation relationship. When the fertilizer irrigation machine is used to fertilize and irrigate the target tea garden in each tea growth period, the irrigation step information is used to control the water flow step of the fertilizer irrigation machine for fertilization and irrigation. First, the irrigation regulation relationship can be determined to obtain the matching relationship between the liquid fertilizer irrigation amount and the water flow step, which is convenient for the subsequent precise regulation of the irrigation step of the fertilizer irrigation machine according to the irrigation amount, so as to achieve uniform distribution of liquid fertilizer and avoid waste of liquid fertilizer, thereby improving the water and fertilizer utilization efficiency of the fertilizer irrigation machine. Among them, feature extraction can identify the loss characteristics of liquid fertilizer during transportation and application, so as to facilitate the determination of a more accurate irrigation regulation relationship between the liquid fertilizer irrigation amount and the water flow step, and determine the infiltration control index to obtain the quantitative liquid fertilizer in The index of permeability characteristics in the soil makes it easier to adjust the liquid fertilizer irrigation amount and irrigation position through the permeability control index to ensure that the liquid fertilizer can effectively reach the root system of the tea tree and improve the water-fertilizer utilization rate of the liquid fertilizer by the fertilization irrigation machine; secondly, by determining the permeability state of the liquid fertilizer in each tea growth period, the soil permeability in each growth period can be obtained, so that the soil absorption of liquid fertilizer can be accurately judged, the irrigation step distance can be matched with the actual water demand, and the fertilization efficiency can be improved, which is convenient for the subsequent adjustment of the water flow step distance in combination with the wet layer depth in each tea growth period, thereby further improving the water-fertilizer utilization rate in the tea garden; in summary, based on the above scheme, the wet layer depth in each tea growth period and the liquid fertilizer loss in the transportation of the fertilization irrigation machine can be comprehensively evaluated to achieve adaptive adjustment of the water flow step distance, thereby improving the water-fertilizer utilization rate of the fertilization irrigation machine.

[0110] In addition, in another aspect of the present application, in some embodiments, the present application provides a mechanized tea garden fertilization and irrigation system, referring to Figure 4 , which is a schematic diagram of exemplary hardware and / or software of a mechanized tea garden fertilization and irrigation system according to some embodiments of the present application. The mechanized tea garden fertilization and irrigation system includes: a collection module 201, a processing module 202 and an execution module 203, which are described as follows:

[0111] The collection module 201 in this application is mainly used to collect the liquid fertilizer irrigation records of the fertilizer irrigation machine for mechanized mobile irrigation of the target tea garden each time, and then obtain the liquid fertilizer irrigation data;

[0112] Processing module 202, in the present application, the processing module 202 is used to determine the infiltration control index in the soil of the target tea garden according to the effective layer thickness of the soil in the target tea garden and the liquid fertilizer infiltration information in the liquid fertilizer irrigation data;

[0113] It should be noted that the processing module 202 is also used to extract the features of the liquid fertilizer residual information in the liquid fertilizer irrigation data, obtain the liquid fertilizer loss features of the fertilizer irrigation machine in the mobile irrigation, and then determine the irrigation control relationship between the liquid fertilizer irrigation amount and the water flow step in the mobile irrigation according to the infiltration control index and the liquid fertilizer loss features;

[0114] In addition, the processing module 202 is also used to obtain the wet layer depth of the target tea garden in each tea growth period, and determine the penetration state of the fertilizer irrigation machine when performing mobile irrigation in each tea growth period according to each wet layer depth and the penetration control index;

[0115] Execution module 203, in this application, execution module 203 is mainly used to determine the irrigation step information in the fertilization and irrigation control of the tea garden according to each infiltration state and the irrigation regulation relationship. When a fertilizer irrigation machine is used to fertilize and irrigate the target tea garden during each tea growth period, the irrigation step information is used to control the water flow step of the fertilizer irrigation machine for fertilization and irrigation.

[0116] The above describes in detail the examples of the mechanized tea garden fertilization and irrigation system and the control method thereof provided by the embodiments of the present application. It can be understood that the corresponding device includes hardware structures and / or software modules corresponding to the execution of each function in order to realize the above functions. It should be easily appreciated by those skilled in the art that, in combination with the units and algorithm steps of each example described in the embodiments disclosed herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present application.

[0117] In some embodiments, the present application also provides a computer device, which includes a memory and a processor, wherein the memory is used to store a computer program, and the processor is used to call and run the computer program from the memory, so that the computer device executes the above-mentioned mechanized tea garden fertilization and irrigation control method.

[0118] In some embodiments, reference Figure 5 , the dotted line in the figure indicates that the unit or the module is optional, and the figure is a schematic diagram of the structure of a computer device for implementing a mechanized tea garden fertilization and irrigation control method according to an embodiment of the present application. The mechanized tea garden fertilization and irrigation control method described in the above embodiment can be Figure 5 The computer device shown in the figure is implemented, and the computer device includes at least one processor 301, a memory 302 and at least one communication unit 305. The computer device can be a terminal device, a server or a chip.

[0119] The processor 301 may be a general-purpose processor or a special-purpose processor. For example, the processor 301 may be a central processing unit (CPU), which may be used to control the computer device, execute software programs, and process data of the software programs. The computer device may also include a communication unit 305 to implement signal input (reception) and output (transmission).

[0120] For example, the computer device may be a chip, the communication unit 305 may be an input and / or output circuit of the chip, or the communication unit 305 may be a communication interface of the chip, and the chip may be a component of a terminal device, a network device, or other devices.

[0121] For another example, the computer device may be a terminal device or a server, and the communication unit 305 may be a transceiver of the terminal device or the server, or the communication unit 305 may be a transceiver circuit of the terminal device or the server.

[0122] The computer device may include one or more memories 302, on which a program 304 is stored. The program 304 can be executed by the processor 301 to generate instructions 303, so that the processor 301 performs the method described in the above method embodiment according to the instructions 303. Optionally, data (such as a target audit model) can also be stored in the memory 302. Optionally, the processor 301 can also read the data stored in the memory 302, and the data can be stored at the same storage address as the program 304, or the data can be stored at a different storage address from the program 304.

[0123] The processor 301 and the memory 302 may be provided separately or integrated together, for example, integrated on a system on chip (SOC) of the terminal device.

[0124] It should be understood that each step of the above method embodiment can be completed by a hardware-based logic circuit or software-based instructions in the processor 301. The processor 301 can be a CPU, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable logic devices, such as discrete gates, transistor logic devices, or discrete hardware components.

[0125] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.

[0126] For example, in some embodiments, the present application also provides a computer-readable storage medium, in which instructions or codes are stored. When the instructions or codes are executed on a computer, the computer implements the above-mentioned mechanized tea garden fertilization and irrigation control method.

[0127] Although the preferred embodiments of the present application have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0128] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A mechanized tea garden fertilization and irrigation control method, characterized in that: The steps include: Collecting the liquid fertilizer irrigation record of each mechanized mobile irrigation of the target tea garden by the fertilizer irrigation machine, thereby obtaining the liquid fertilizer irrigation data, wherein the liquid fertilizer irrigation data is a data set consisting of the liquid fertilizer irrigation record of each mechanized mobile irrigation, and the liquid fertilizer irrigation record includes the liquid fertilizer type, the initial moisture content of the tea garden soil, the irrigation depth curve, the liquid fertilizer irrigation amount, and the liquid fertilizer transportation amount of the fertilizer irrigation machine; Determine the infiltration control index of the soil in the target tea garden according to the effective layer thickness of the soil in the target tea garden and the liquid fertilizer infiltration information in the liquid fertilizer irrigation data; Extracting features of the liquid fertilizer residual information in the liquid fertilizer irrigation data to obtain liquid fertilizer loss features of the fertilizer irrigation machine in mobile irrigation, and then determining the irrigation control relationship between the liquid fertilizer irrigation amount and the water flow step distance in mobile irrigation based on the infiltration control index and the liquid fertilizer loss features, wherein the liquid fertilizer residual information refers to the set of liquid fertilizer residual amounts in each mechanized mobile irrigation, and the water flow step distance refers to the distance moved by the fertilizer irrigation machine in a historical mobile irrigation process; Obtaining the depth of the wet layer of the target tea garden at each tea growth period, and determining the penetration state of the fertilizer irrigation machine when performing mobile irrigation at each tea growth period according to each wet layer depth and the penetration control index; The irrigation step information in the fertilization and irrigation control of the tea garden is determined according to each infiltration state and the irrigation regulation relationship. When the fertilizer irrigation machine is used to fertilize and irrigate the target tea garden in each tea growth period, the irrigation step information is used to control the water flow step of the fertilizer irrigation machine for fertilization and irrigation, wherein the irrigation step information is a data set of the interval distance in different irrigation area rotation cycles in the fertilization and irrigation of the target tea garden, and the irrigation step distance refers to the interval distance moved by the fertilizer irrigation machine during the irrigation process.

2. The method according to claim 1, characterized in that Determining the infiltration control index in the soil of the target tea garden by using the effective layer thickness of the soil in the target tea garden and the liquid fertilizer infiltration information in the liquid fertilizer irrigation data specifically includes: For various aqueous fertilizers, obtaining liquid fertilizer penetration information of the aqueous fertilizers from the liquid fertilizer irrigation data; Determining the penetration rate of the aqueous solution fertilizer in each effective soil layer according to the liquid fertilizer penetration information; The permeability of the aqueous solution fertilizer in the soil of the target tea garden is determined by all the permeation rates and the effective layer thickness of the soil in the target tea garden, and then the permeability of various aqueous solution fertilizers in the soil of the target tea garden is obtained; The infiltration control index in the target tea garden soil was determined based on all permeabilities.

3. The method according to claim 1, characterized in that The feature extraction of the liquid fertilizer residual information in the liquid fertilizer irrigation data to obtain the liquid fertilizer loss features of the fertilization irrigation machine in mobile irrigation specifically includes: For each mechanized mobile irrigation of the fertilizer irrigation machine, obtain the liquid fertilizer irrigation record during the mechanized mobile irrigation from the liquid fertilizer irrigation data, take the difference between the liquid fertilizer transportation volume and the liquid fertilizer irrigation volume of each fertilizer irrigation machine in the liquid fertilizer irrigation record as the liquid fertilizer residual volume at the corresponding collection time, and take the collection of all liquid fertilizer residual volumes as the liquid fertilizer residual information during the mechanized mobile irrigation; Determine a residual curve of a fertilizer irrigation machine during mechanized mobile irrigation according to the liquid fertilizer residual information; Extracting the residual features in the fertilizer irrigation machine during mechanized mobile irrigation from the residual curve, and then obtaining the residual features in the fertilizer irrigation machine during each mechanized mobile irrigation; The liquid fertilizer loss characteristics of the fertigation irrigation machine in mobile irrigation are determined based on all the residual characteristics.

4. The method according to claim 1, characterized in that Determining the irrigation control relationship between the liquid fertilizer irrigation amount and the water flow step distance in mobile irrigation based on the infiltration control index and the liquid fertilizer loss characteristics specifically includes: Determine all water flow steps of the fertilizer irrigator in mobile irrigation; Determine the penetration depth of the aqueous fertilizer at each water flow step according to the penetration control index; Determine the liquid fertilizer irrigation amount at the corresponding water flow step according to each penetration depth and the liquid fertilizer loss characteristics; The irrigation control relationship between the liquid fertilizer irrigation amount and the water flow step in mobile irrigation is determined according to the liquid fertilizer irrigation amount at each water flow step.

5. The method according to claim 1, characterized in that Determining the penetration state of the fertilizer irrigation machine during mobile irrigation in each tea growth period according to the depth of each wet layer and the penetration control index specifically includes: For each tea growing period, obtain the soil moisture content of the target tea garden during the tea growing period; Determine the irrigation and transportation volume of the fertilizer irrigation machine during the tea growing period according to the depth of the wet layer during the tea growing period and the soil moisture content; Determining the transportation time of the fertilizer irrigation machine during the tea growing period according to the irrigation transportation volume and the transportation rate of the fertilizer irrigation machine; The penetration state of the fertilizer irrigation machine during mobile irrigation during the tea growing period is determined according to the transportation time and the penetration control index, and then the penetration state of the fertilizer irrigation machine during mobile irrigation during each tea growing period is obtained.

6. The method according to claim 1, characterized in that Determining the irrigation step information in the tea garden fertilization irrigation control according to each infiltration state and the irrigation regulation relationship specifically includes: Collect the soil moisture content of the target tea garden within a specified period of time, and then obtain the soil moisture curve; Determine the irrigation area rotation cycle in each tea growing period according to the soil moisture curve and each infiltration state, and then determine the liquid fertilizer irrigation amount in each irrigation area rotation cycle; Determine the irrigation step distance in the rotation cycle of each irrigation area through the irrigation regulation relationship and each liquid fertilizer irrigation amount; The irrigation step information in tea garden fertilization and irrigation control is determined based on the irrigation step under the rotation cycle of each irrigation area.

7. The method according to claim 1, characterized in that The fertilizer irrigation machine is a mechanized automatic irrigation machine integrating water and fertilizer.

8. A mechanized tea garden fertilization and irrigation system, which adopts the method according to any one of claims 1 to 7 to carry out mechanized tea garden fertilization and irrigation, characterized in that: The system includes: The collection module is used to collect the liquid fertilizer irrigation records of the fertilizer irrigation machine for mechanized mobile irrigation of the target tea garden each time, and then obtain the liquid fertilizer irrigation data; A processing module, used for determining the infiltration control index in the soil of the target tea garden according to the effective layer thickness of the soil in the target tea garden and the liquid fertilizer infiltration information in the liquid fertilizer irrigation data; The processing module is also used to extract features of liquid fertilizer residual information in the liquid fertilizer irrigation data to obtain liquid fertilizer loss features of the fertilization irrigation machine in mobile irrigation, and then determine the irrigation control relationship between the liquid fertilizer irrigation amount and the water flow step distance in mobile irrigation based on the infiltration control index and the liquid fertilizer loss features; The processing module is also used to obtain the depth of the wet layer of the target tea garden in each tea growth period, and determine the penetration state of the fertilizer irrigation machine when performing mobile irrigation in each tea growth period according to each wet layer depth and the penetration control index; The execution module is used to determine the irrigation step information in the tea garden fertilization and irrigation control according to each infiltration state and the irrigation regulation relationship. When a fertilizer irrigation machine is used to fertilize and irrigate the target tea garden in each tea growth period, the irrigation step information is used to control the water flow step of the fertilizer irrigation machine for fertilization and irrigation.

9. A computer device, characterized in that: The computer device includes a memory and a processor, the memory is used to store a computer program, and the processor is used to call and run the computer program from the memory, so that the computer device executes the mechanized tea garden fertilization and irrigation control method described in any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores instructions or codes, and when the instructions or codes are executed on a computer, the computer implements the mechanized tea garden fertilization and irrigation control method as described in any one of claims 1 to 7.

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