Agricultural and forestry crop irrigation method, device and equipment

Abstract

The invention discloses an agricultural and forestry crop irrigation method, device and equipment. The method comprises the steps that the soil average water content of each crop in a preset burial depth range in a target area is obtained; determining a target water demand of each crop according to the planting time data of each crop and the average soil water content of each crop; judging whether a demand for dividing a target area exists or not; if not, executing a first irrigation mode; and if yes, dividing the target area into a plurality of first sub-areas and a plurality of second sub-areas according to the target water demand of the plurality of crops in the target area, the weather prediction data and a second preset water shortage threshold, adopting a second irrigation mode or a third irrigation mode for the first sub-areas, and adopting the third irrigation mode for the second sub-areas. The invention belongs to the field of agricultural irrigation. The irrigation mode can be selected for the target area more reasonably, and the utilization rate of water resources is increased.

Description

Technical Field

[0001] The present invention relates to the field of agricultural irrigation, and in particular to an agricultural and forestry crop irrigation method, device and equipment. Background Art

[0002] In the field of agricultural irrigation, drip irrigation, micro-sprinkler irrigation and sprinkler irrigation are three common irrigation methods. Drip irrigation directly delivers water to the vicinity of plant roots, reducing water evaporation loss and runoff, making water use efficiency high, but the drip irrigation water replenishment speed is slow; micro-sprinkler irrigation evenly sprays extremely fine water droplets through the nozzle, forming a water mist area near the roots of crops. Since the water flow is small and evenly distributed, it can reduce the disease problem caused by excessive water on the leaf surface, but the water droplets sprayed by micro-sprinkler irrigation are small and easily affected by wind, and the water replenishment speed is also slow; sprinkler irrigation can quickly cover a large area of ​​crops, replenish water quickly, and has strong wind resistance, but the sprinkler irrigation method has high evaporation and low water resource utilization.

[0003] Generally speaking, the environment in agricultural areas is relatively complex, and the weather environment is also changing at any time. A single irrigation mode is difficult to meet the actual irrigation needs. Therefore, how to design an irrigation method for the irrigation area is an urgent problem to be solved. Summary of the invention

[0004] The present invention solves the technical problem that the irrigation mode of the irrigation area in the prior art is single and difficult to meet the actual irrigation needs by providing an agricultural and forestry crop irrigation method, device and equipment, and achieves the technical effect of reasonably designing an irrigation method for the irrigation area.

[0005] In a first aspect, the present invention provides an agricultural and forestry crop irrigation method, the method comprising: Obtain the average soil moisture content of each crop in the target area within a preset burial depth range, wherein each crop is configured with a drip irrigation outlet, a sprinkler irrigation outlet, and a micro sprinkler irrigation outlet; Determine the target water requirement of each crop based on the planting time data of each crop and the average soil moisture content of each crop, wherein the planting time data includes the starting planting time and the current time; Determining whether there is a need to divide the target area according to the target water demand of several crops in the target area, weather forecast data, and a first preset water shortage threshold, wherein the weather forecast data includes rainfall forecast, light intensity forecast, and wind speed forecast; If not present, the first irrigation mode is executed, and the first irrigation mode includes drip irrigation, sprinkler irrigation and micro sprinkler irrigation; If so, the target area is divided into several first sub-areas and several second sub-areas according to the target water demand of several crops in the target area, weather forecast data and the second preset water shortage threshold, wherein the second irrigation mode or the third irrigation mode is adopted for the first sub-area, and the third irrigation mode is adopted for the second sub-area, wherein the second irrigation mode covers drip irrigation and micro-sprinkler irrigation, and the third irrigation mode only includes drip irrigation.

[0006] Further, judging whether there is a need to divide the target area according to the target water demand of several crops in the target area, weather forecast data and the first preset water shortage threshold, includes: Determine the evaporation forecast for each crop based on weather forecast data; Determine the water deficit for each crop based on the evaporation forecast and target water requirement for each crop, as well as the rainfall forecast; If the sum of the water shortages of several crops in the target area is greater than the first preset water shortage threshold, there is no need to divide the target area; otherwise, there is a need to divide the target area.

[0007] Further, if it does not exist, the first irrigation mode is executed, and the first irrigation mode covers drip irrigation, sprinkler irrigation and micro sprinkler irrigation, including: Determine the target water shortage of the target area according to the sum of the water shortages of several crops in the target area; The target water shortage is used as a benchmark to divide the water supply into a first water supply range, a second water supply range and a third water supply range, wherein the maximum value of the first water supply range is the minimum value of the second water supply range, and the maximum value of the second water supply range is the minimum value of the third water supply range; When in the first water delivery range, the target area is irrigated by sprinkler irrigation; When in the second water delivery range, the target area is irrigated simultaneously by drip irrigation and micro-sprinkler irrigation; When in the third water delivery range, the target area is irrigated by drip irrigation.

[0008] Furthermore, if it exists, the target area is divided into a plurality of first sub-areas and a plurality of second sub-areas according to the target water requirements of a plurality of crops in the target area, the weather forecast data and the second preset water shortage threshold, including: When the sum of the water shortage amounts of a plurality of adjacent crops in the target area is greater than or equal to a second preset water shortage threshold, the plurality of adjacent crops are divided into a first sub-area; The remaining areas in the target area that are not divided into the first sub-areas are all used as the second sub-areas.

[0009] Further, adopting the second irrigation mode or the third irrigation mode for the first sub-area includes: When the wind speed forecast in the weather forecast data is greater than a preset wind speed threshold, adopting a third irrigation mode for the first sub-area; When the wind speed forecast in the weather forecast data is less than or equal to the wind speed threshold, a second irrigation mode is adopted for the first sub-area, which includes: irrigating the crops in the first sub-area simultaneously by drip irrigation and micro-sprinkler irrigation.

[0010] Furthermore, when only drip irrigation is used to irrigate the crops, the method further comprises: According to the current actual water shortage of the crop, the preset drip irrigation drip frequency and the preset duration, the preset drip irrigation drip frequency is updated to obtain the target drip irrigation drip frequency, and the crop is drip irrigated at the target drip irrigation drip frequency.

[0011] Furthermore, according to the current actual water shortage of the crop, the preset drip irrigation drip frequency and the preset duration, the preset drip irrigation drip frequency is updated to obtain the target drip irrigation drip frequency, including:

[0012] in, is the target drip irrigation frequency, To preset the drip irrigation frequency, is the actual current water shortage of crops, The preset duration.

[0013] Furthermore, according to the planting time data of each crop and the average soil moisture content of each crop, the target water requirement of each crop is determined, including: Determine the growth stage of each crop based on the starting planting time and the current time; Determine the target water requirement for the crop based on the growth stage of the crop and the average soil moisture content of the crop.

[0014] In a second aspect, the present invention provides an agricultural and forestry crop irrigation device, the device comprising: An acquisition module is used to obtain the average soil moisture content of each crop in the target area within a preset burial depth range, wherein each crop is configured with a drip irrigation port, a sprinkler irrigation port and a micro sprinkler irrigation port; A water requirement determination module is used to determine the target water requirement of each crop according to the planting time data of each crop and the average soil moisture content of each crop, wherein the planting time data includes the starting planting time and the current time; A judgment module, used to judge whether there is a need to divide the target area according to the target water demand of a plurality of crops in the target area, weather forecast data and a first preset water shortage threshold, wherein the weather forecast data includes rainfall forecast, light intensity forecast and wind speed forecast; A first execution module, for executing a first irrigation mode if it does not exist, the first irrigation mode covering drip irrigation, sprinkler irrigation and micro sprinkler irrigation; The second execution module is used for dividing the target area into a plurality of first sub-areas and a plurality of second sub-areas according to the target water demand of a plurality of crops in the target area, weather forecast data and a second preset water shortage threshold, if it exists, wherein the second irrigation mode or the third irrigation mode is adopted for the first sub-areas, and the third irrigation mode is adopted for the second sub-areas, wherein the second irrigation mode covers drip irrigation and micro-sprinkler irrigation, and the third irrigation mode only includes drip irrigation.

[0015] In a third aspect, the present invention provides an electronic device, comprising: processor; a memory for storing processor-executable instructions; The processor is configured to execute to implement an agricultural and forestry crop irrigation method as provided in the first aspect.

[0016] One or more technical solutions provided in the present invention have at least the following technical effects or advantages: The present invention provides an agricultural and forestry crop irrigation method, the method comprising: obtaining the average soil moisture content of each crop in a target area within a preset burial depth range, wherein each crop is configured with a drip irrigation port, a sprinkler irrigation port and a micro sprinkler irrigation port; determining the target water requirement of each crop according to the planting time data of each crop and the average soil moisture content of each crop, wherein the planting time data includes the starting planting time and the current time; judging whether there is a need to divide the target area according to the target water requirements of several crops in the target area, weather forecast data and a first preset water shortage threshold, wherein: The weather forecast data includes rainfall forecast, light intensity forecast and wind speed forecast; if it does not exist, the first irrigation mode is executed, and the first irrigation mode covers drip irrigation, sprinkler irrigation and micro sprinkler irrigation; if it exists, the target area is divided into several first sub-areas and several second sub-areas according to the target water requirement of several crops in the target area, the weather forecast data and the second preset water shortage threshold, wherein the second irrigation mode or the third irrigation mode is adopted for the first sub-area, and the third irrigation mode is adopted for the second sub-area, wherein the second irrigation mode covers drip irrigation and micro sprinkler irrigation, and the third irrigation mode only includes drip irrigation.

[0017] By setting the first irrigation mode for target areas with large water shortage, in the early stage of large water shortage, sprinkler irrigation can quickly replenish soil moisture and alleviate drought conditions. In the middle stage, drip irrigation and micro-sprinkler irrigation can gradually reduce water waste and gradually improve irrigation efficiency. In the later stage, drip irrigation can maximize water utilization efficiency, help crop roots to grow deep, improve crop resistance and yield, and also help improve crop quality. In the target area with relatively scarce water, the present invention gradually transitions from sprinkler irrigation to micro-sprinkler irrigation and drip irrigation, and then to drip irrigation, which can gradually improve water utilization efficiency, reduce water waste, improve soil structure, reduce the risk of pests and diseases, increase crop yield and quality, reduce long-term operating costs, and gradually improve management level. The gradually refined irrigation strategy helps to achieve sustainable agricultural production under the condition of water shortage.

[0018] When the water shortage is not large, the present invention reasonably divides the second sub-area and the first sub-area, and when the wind speed is less than a threshold, adopts the second irrigation mode for the first sub-area to achieve complementarity between water resources in the same area and improve irrigation efficiency.

[0019] The present invention can realize reasonable irrigation mode selection for crops under different water shortage levels and different natural environments, improve the degree of automation, improve the utilization rate of water resources, and balance the water replenishment speed and the utilization rate of water resources.

[0020] The present invention dynamically adjusts the drip irrigation frequency according to the actual water shortage of crops and the soil moisture condition, thereby achieving precise irrigation and avoiding waste of water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 A schematic diagram of a process flow of an agricultural and forestry crop irrigation method provided by the present invention; Figure 2 This is a schematic diagram of the distribution of crops provided by the present invention. DETAILED DESCRIPTION

[0023] The embodiment of the present invention provides an agricultural and forestry crop irrigation method, thereby solving the technical problem that the irrigation mode of the irrigation area in the prior art is single and difficult to meet the actual needs.

[0024] The technical solution of the present invention is to solve the above technical problems, and the overall idea is as follows: A method for irrigation of agricultural and forestry crops, the method comprising: obtaining the average soil moisture content of each crop in a target area within a preset burial depth range, wherein each crop is configured with a drip irrigation port, a sprinkler irrigation port and a micro sprinkler irrigation port; determining the target water requirement of each crop according to planting time data of each crop and the average soil moisture content of each crop, wherein the planting time data includes a starting planting time and a current time; judging whether there is a need to divide the target area according to the target water requirements of several crops in the target area, weather forecast data and a first preset water shortage threshold, wherein the weather forecast data includes a first preset water shortage threshold, and the target water requirement of each crop is determined according to the target water requirement of each crop in the target area. The measured data includes rainfall prediction, light intensity prediction and wind speed prediction; if not present, the first irrigation mode is executed, and the first irrigation mode covers drip irrigation, sprinkler irrigation and micro sprinkler irrigation; if present, the target area is divided into several first sub-areas and several second sub-areas according to the target water requirement of several crops in the target area, weather forecast data and the second preset water shortage threshold, wherein the second irrigation mode or the third irrigation mode is adopted for the first sub-area, and the third irrigation mode is adopted for the second sub-area, wherein the second irrigation mode covers drip irrigation and micro sprinkler irrigation, and the third irrigation mode only includes drip irrigation.

[0025] 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.

[0026] First of all, the term "and / or" in this article is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0027] In the field of agricultural irrigation, drip irrigation, micro-sprinkler irrigation and sprinkler irrigation are three common irrigation methods. Drip irrigation directly delivers water to the vicinity of plant roots, reducing water evaporation loss and runoff, making water use efficiency high, but the drip irrigation water replenishment speed is slow; micro-sprinkler irrigation evenly sprays extremely fine water droplets through the nozzle, forming a water mist area near the roots of crops. Since the water flow is small and evenly distributed, it can reduce the disease problem caused by excessive water on the leaf surface, but the water droplets sprayed by micro-sprinkler irrigation are small and easily affected by wind, and the water replenishment speed is also slow; sprinkler irrigation can quickly cover a large area of ​​crops, replenish water quickly, and has strong wind resistance, but the sprinkler irrigation method has high evaporation and low water resource utilization.

[0028] It should also be noted that there is a clear difference between fast and slow water replenishment during the irrigation process. A high irrigation rate can complete the irrigation task in a short period of time and can quickly moisten the soil surface, which is very helpful for situations where water needs to be replenished quickly. However, when irrigation is fast, water quickly enters the soil, but it may not be evenly distributed. The upper soil may be saturated quickly, while the lower soil has not fully absorbed water. If the irrigation rate exceeds the soil infiltration rate, it may cause surface runoff and cause the loss of water and nutrients; a low irrigation rate can make water penetrate the soil more evenly, ensuring that all levels of the soil can be fully moistened, but: a low irrigation rate means that the irrigation process takes longer, which is not suitable when water needs to be replenished quickly.

[0029] The purpose of the present invention is to reasonably select irrigation methods for crops under different water shortage levels and different natural environments, improve the degree of automation, improve the utilization rate of water resources, and balance the water replenishment speed and the utilization rate of water resources.

[0030] The present invention provides Figure 1 The method for irrigation of agricultural and forestry crops shown includes steps S11-S15: Step S11, obtaining the average soil moisture content of each crop in the target area within a preset burial depth range, wherein each crop is configured with a drip irrigation port, a sprinkler irrigation port and a micro sprinkler irrigation port.

[0031] The target area refers to the area that needs to be irrigated. It is understandable that different preset burial depth ranges can be set for crops of different types and different growth cycles, which can be specifically determined according to the root growth of the crop. The longer the root system of the crop, the deeper the depth of the preset burial depth range can be; the larger the diameter range of the root system of the crop, the larger the width range of the preset burial depth range can also be. In the present invention, it is assumed that the crops are evenly distributed.

[0032] The average soil moisture content can be obtained by several methods, such as time domain reflectometry, frequency domain reflectometry, neutron scattering method, etc., which are not limited here.

[0033] Step S12, determining the target water requirement of each crop according to the planting time data of each crop and the average soil moisture content of each crop, wherein the planting time data includes the starting planting time and the current time.

[0034] Specifically, it includes: determining the growth stage of each crop according to the starting planting time and the current time of the crop; determining the target water requirement of the crop according to the growth stage of the crop and the average soil moisture content of the crop.

[0035] The starting planting time is the time when the crop is sown or transplanted. The current time is the real time. The number of days the crop has grown can be obtained by subtracting the starting planting time from the current time. The duration of each growth stage can be understood by referring to the growth period table of the crop. Common growth stages include germination, seedling, growth, flowering, and fruiting. The current growth stage of the crop can be determined based on the calculated growth time and the growth period table.

[0036] Crops have different water requirements at different growth stages. The target water requirement of the crop is determined based on the difference between the average soil moisture content of the crop and the water requirement of the crop at its growth stage.

[0037] It should be noted that the target water demand may be a positive value, a negative value or 0. The present invention takes into account the evaporation and rainfall in the future to comprehensively consider whether water replenishment is needed and what irrigation mode to use for water replenishment. The future period referred to in the present invention may be the next 24 hours. The method provided by the present invention can be set to be executed once a day, and the execution time can be determined according to actual conditions.

[0038] Step S13, judging whether there is a need to divide the target area according to the target water demand of several crops in the target area, weather forecast data and a first preset water shortage threshold, wherein the weather forecast data includes rainfall forecast, light intensity forecast and wind speed forecast.

[0039] Specifically, it includes: determining the evaporation forecast of each crop based on weather forecast data; determining the water shortage of each crop based on the evaporation forecast and target water demand of each crop, as well as the rainfall forecast; if the sum of the water shortages of several crops in the target area is greater than the first preset water shortage threshold, then there is no need to divide the target area; otherwise, there is.

[0040] The weather forecast data may be weather forecast data for the target area within one day in the future. The weather forecast data may also include daily maximum temperature, minimum temperature, water vapor content in the air, etc. The evaporation prediction of each crop may be determined based on an evaporation model, such as the Penman-Monteith equation, the Hargreaves equation, and the FAO-56 Penman-Monteith equation, etc., which are not limited here.

[0041] Based on the evaporation forecast and rainfall forecast for each crop in the next day, the target water requirement of each crop, and the water shortage of each crop, including:

[0042] in, For the The water shortage of each crop (within the preset burial depth range) For the Evaporation prediction of crops (within a preset depth range), For the The target water requirement of each crop (within the preset burial depth range) For the Prediction of rainfall for crops (within a preset depth range).

[0043] Specifically, it can be determined whether the sum of the water shortages of all crops in the target area is greater than a first preset water shortage threshold value according to the sum of the water shortages of all crops in the target area. If it is greater, it indicates that the water shortage of all crops in the target area is large and the target area is seriously short of water, and rapid water replenishment is required for all crops in the target area. The first preset water shortage threshold reflects the severity of the water shortage. When it is greater than the first preset water shortage threshold, it indicates that the water shortage is serious. The first preset water shortage threshold can be determined according to actual conditions.

[0044] Step S14: if it does not exist, execute the first irrigation mode, which includes drip irrigation, sprinkler irrigation and micro sprinkler irrigation.

[0045] Specifically, it includes: determining the target water shortage of the target area according to the sum of the water shortage of several crops in the target area; dividing the first water supply range, the second water supply range and the third water supply range based on the target water shortage, wherein the maximum value of the first water supply range is the minimum value of the second water supply range, and the maximum value of the second water supply range is the minimum value of the third water supply range; when in the first water supply range, irrigating the target area by sprinkler irrigation; when in the second water supply range, irrigating the target area by drip irrigation and micro-sprinkler irrigation at the same time; when in the third water supply range, irrigating the target area by drip irrigation.

[0046] Specifically, the target water shortage of the target area can be determined according to the sum of the water shortages of all crops in the target area. Based on the target water shortage, the first water delivery range, the second water delivery range and the third water delivery range are divided according to a number of preset percentages.

[0047] For example, the target water shortage is 100L, and the preset percentages are 80%, 15%, and 5% respectively, which means that the first water delivery range is 0-80L, the second water delivery range is 80L-95L, and the second water delivery range is 95L-100L. That is to say, when the water shortage is 0-80L, the target area is irrigated by sprinkler irrigation. When the sprayed amount reaches 80L, the target area is irrigated by drip irrigation and micro-sprinkler irrigation at the same time. The remaining steps are similar. Irrigation can be stopped when the target water shortage is reached by irrigation in the first irrigation mode.

[0048] By setting the first irrigation mode for target areas with large water shortage, in the early stage of large water shortage, sprinkler irrigation can quickly replenish soil moisture and alleviate drought conditions. In the middle stage, drip irrigation and micro-sprinkler irrigation can gradually reduce water waste and gradually improve irrigation efficiency. In the later stage, drip irrigation can maximize water utilization efficiency, help crop roots to grow deep, improve crop resistance and yield, and also help improve crop quality. In the target area with relatively scarce water, the present invention gradually transitions from sprinkler irrigation to micro-sprinkler irrigation and drip irrigation, and then to drip irrigation, which can gradually improve water utilization efficiency, reduce water waste, improve soil structure, reduce the risk of pests and diseases, increase crop yield and quality, reduce long-term operating costs, and gradually improve management level. The gradually refined irrigation strategy helps to achieve sustainable agricultural production under the condition of water shortage.

[0049] Step S15, if it exists, the target area is divided into a number of first sub-areas and a number of second sub-areas according to the target water demand of a number of crops in the target area, weather forecast data and a second preset water shortage threshold, wherein the second irrigation mode or the third irrigation mode is adopted for the first sub-area, and the third irrigation mode is adopted for the second sub-area, wherein the second irrigation mode covers drip irrigation and micro-sprinkler irrigation, and the third irrigation mode only includes drip irrigation.

[0050] Specifically, when the sum of the water shortage amounts of several adjacent crops in the target area is greater than or equal to a second preset water shortage threshold, the several adjacent crops are divided into a first sub-area; and the remaining areas in the target area that are not divided into the first sub-area are all used as second sub-areas.

[0051] For example, in Figure 2 In the figure, there are several crops, and the present invention only shows A1, A2, A3, A4, A5, A6, and A7. The position relationship of A1-A7 is shown as follows Figure 2 As shown, if the sum of the water shortages of A1, A2, A3, and A4 is greater than the second preset water shortage threshold, A1, A2, A3, and A4 are divided into a first sub-area (as long as the water shortages of several adjacent crops are greater than or equal to the second preset water shortage threshold), the dividing line can be drawn from the midpoint of the remaining crops. The second preset water shortage threshold can be set according to actual conditions.

[0052] The remaining areas in the target area that are not divided into the first sub-area are all used as the second sub-area. For example, if A7 is not divided into the first sub-area, the area where A7 is located is used as the second sub-area.

[0053] The second irrigation mode or the third irrigation mode is adopted for the first sub-area, including: when the wind speed forecast in the weather forecast data is greater than the preset wind speed threshold, the third irrigation mode is adopted for the first sub-area; when the wind speed forecast in the weather forecast data is less than or equal to the wind speed threshold, the second irrigation mode is adopted for the first sub-area, including: irrigating the crops in the first sub-area by drip irrigation and micro-sprinkler irrigation at the same time.

[0054] When the (average) wind speed forecast in the weather forecast data is greater than the preset wind speed threshold, it means that the wind is too strong and micro-sprinkler irrigation is not suitable. The third irrigation mode can be used.

[0055] When the wind speed forecast in the weather forecast data is less than or equal to the preset wind speed threshold, the crops in the first sub-area are irrigated simultaneously by drip irrigation and micro-sprinkler irrigation.

[0056] Different from drip irrigation that directly supplies water to the roots of crops, micro-sprinkler irrigation forms a water mist belt near the roots of each crop. The water mist belts between crops will circulate and spread in the air, complementing each other. Division based on the second preset water shortage threshold means that when there is no severe water shortage in the first sub-area, several adjacent crops are divided into a first sub-area. By using drip irrigation and micro-sprinkler irrigation, the complementarity between water resources in the same area is achieved, thereby improving irrigation efficiency.

[0057] In addition, the second sub-area adopts the third irrigation mode, namely the drip irrigation mode. No matter which irrigation mode is adopted, irrigation can be stopped as long as the water shortage in the area is met.

[0058] When the crop is irrigated using drip irrigation alone, the method also includes: According to the current actual water shortage of the crop, the preset drip irrigation drip frequency and the preset duration, the preset drip irrigation drip frequency is updated to obtain the target drip irrigation drip frequency, and the crop is drip irrigated at the target drip irrigation drip frequency.

[0059]

[0060] in, is the target drip irrigation frequency, To preset the drip irrigation frequency, is the actual current water shortage of crops, Generally speaking, the volume of a drop of water is about 0.05 ml, so "0.05" can also be replaced by the volume D of a drop of water.

[0061] It is understandable that drip irrigation is currently carried out using natural frequency, but the actual water demand of crops and soil moisture conditions are not considered when uniform drip irrigation is carried out using natural frequency, which may cause water infiltration and low water resource utilization (the water absorption rate of the soil is closely related to the soil moisture content. The higher the soil moisture content, the slower the water absorption rate). The present invention dynamically adjusts the drip irrigation frequency according to the actual water shortage of crops and the soil moisture conditions, which can achieve precise irrigation and avoid waste of water resources.

[0062] In summary, the present invention provides an agricultural and forestry crop irrigation method, the method comprising: obtaining the average soil moisture content of each crop in a preset burial depth range in a target area, wherein each crop is configured with a drip irrigation port, a sprinkler irrigation port and a micro sprinkler irrigation port; determining the target water requirement of each crop according to the planting time data of each crop and the average soil moisture content of each crop, wherein the planting time data includes the starting planting time and the current time; judging whether there is a need to divide the target area according to the target water requirements of several crops in the target area, weather forecast data and a first preset water shortage threshold, Among them, the weather forecast data includes rainfall forecast, light intensity forecast and wind speed forecast; if it does not exist, the first irrigation mode is executed, and the first irrigation mode covers drip irrigation, sprinkler irrigation and micro sprinkler irrigation; if it exists, the target area is divided into several first sub-areas and several second sub-areas according to the target water requirement of several crops in the target area, weather forecast data and the second preset water shortage threshold, wherein the second irrigation mode or the third irrigation mode is adopted for the first sub-area, and the third irrigation mode is adopted for the second sub-area, wherein the second irrigation mode covers drip irrigation and micro sprinkler irrigation, and the third irrigation mode only includes drip irrigation.

[0063] By setting the first irrigation mode for target areas with large water shortage, in the early stage of large water shortage, sprinkler irrigation can quickly replenish soil moisture and alleviate drought conditions. In the middle stage, drip irrigation and micro-sprinkler irrigation can gradually reduce water waste and gradually improve irrigation efficiency. In the later stage, drip irrigation can maximize water utilization efficiency, help crop roots to grow deep, improve crop resistance and yield, and also help improve crop quality. In the target area with relatively scarce water, the present invention gradually transitions from sprinkler irrigation to micro-sprinkler irrigation and drip irrigation, and then to drip irrigation, which can gradually improve water utilization efficiency, reduce water waste, improve soil structure, reduce the risk of pests and diseases, increase crop yield and quality, reduce long-term operating costs, and gradually improve management level. The gradually refined irrigation strategy helps to achieve sustainable agricultural production under the condition of water shortage.

[0064] When the water shortage is not large, the present invention reasonably divides the second sub-area and the first sub-area, and when the wind speed is less than a threshold, adopts the second irrigation mode for the first sub-area to achieve complementarity between water resources in the same area and improve irrigation efficiency.

[0065] The present invention dynamically adjusts the drip irrigation frequency according to the actual water shortage of crops and the soil moisture condition, thereby achieving precise irrigation and avoiding waste of water resources.

[0066] Based on the same inventive concept, the present invention provides an agricultural and forestry crop irrigation device, the device comprising: An acquisition module is used to obtain the average soil moisture content of each crop in the target area within a preset burial depth range, wherein each crop is configured with a drip irrigation port, a sprinkler irrigation port and a micro sprinkler irrigation port; A water requirement determination module is used to determine the target water requirement of each crop according to the planting time data of each crop and the average soil moisture content of each crop, wherein the planting time data includes the starting planting time and the current time; A judgment module, used to judge whether there is a need to divide the target area according to the target water demand of a plurality of crops in the target area, weather forecast data and a first preset water shortage threshold, wherein the weather forecast data includes rainfall forecast, light intensity forecast and wind speed forecast; A first execution module, for executing a first irrigation mode if it does not exist, the first irrigation mode covering drip irrigation, sprinkler irrigation and micro sprinkler irrigation; The second execution module is used for dividing the target area into a plurality of first sub-areas and a plurality of second sub-areas according to the target water demand of a plurality of crops in the target area, weather forecast data and a second preset water shortage threshold, if it exists, wherein the second irrigation mode or the third irrigation mode is adopted for the first sub-areas, and the third irrigation mode is adopted for the second sub-areas, wherein the second irrigation mode covers drip irrigation and micro-sprinkler irrigation, and the third irrigation mode only includes drip irrigation.

[0067] Based on the same inventive concept, the present invention also provides an electronic device, including: processor; a memory for storing processor-executable instructions; The processor is configured to execute to implement an agricultural and forestry crop irrigation method as provided above.

[0068] Since the electronic device introduced in this embodiment is an electronic device used to implement the information processing method in the embodiment of the present invention, based on the information processing method introduced in the embodiment of the present invention, a person skilled in the art can understand the specific implementation of the electronic device of this embodiment and its various variations, so how the electronic device implements the method in the embodiment of the present invention is not described in detail here. As long as the electronic device used by a person skilled in the art to implement the information processing method in the embodiment of the present invention, it belongs to the scope of protection of the present invention.

[0069] It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Furthermore, the present invention may take 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 code.

[0070] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0071] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0072] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1The steps for the functions specified in one or more boxes.

[0073] Although the preferred embodiments of the present invention 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 that fall within the scope of the present invention.

[0074] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A method for irrigation of agricultural and forestry crops, characterized in that: The method comprises: Obtain the average soil moisture content of each crop in the target area within a preset burial depth range, wherein each crop is configured with a drip irrigation outlet, a sprinkler irrigation outlet, and a micro sprinkler irrigation outlet; Determine the target water requirement of each crop according to the planting time data of each crop and the average soil moisture content of each crop, wherein the planting time data includes the starting planting time and the current time; Determining whether there is a need to divide the target area according to target water requirements of a plurality of crops in the target area, weather forecast data, and a first preset water shortage threshold, wherein the weather forecast data includes rainfall forecast, light intensity forecast, and wind speed forecast; If not present, the first irrigation mode is executed, and the first irrigation mode includes drip irrigation, sprinkler irrigation and micro sprinkler irrigation; If so, the target area is divided into several first sub-areas and several second sub-areas according to the target water demand of several crops in the target area, the weather forecast data and the second preset water shortage threshold, wherein the second irrigation mode or the third irrigation mode is adopted for the first sub-area, and the third irrigation mode is adopted for the second sub-area, wherein the second irrigation mode covers drip irrigation and micro-sprinkler irrigation, and the third irrigation mode only includes drip irrigation.

2. The method for irrigation of agricultural and forestry crops according to claim 1, characterized in that: According to the target water requirements of several crops in the target area, weather forecast data and a first preset water shortage threshold, determining whether there is a need to divide the target area includes: determining an evaporation forecast for each crop based on the weather forecast data; Determine the water deficit for each crop based on the evaporation forecast and target water requirement for each crop, as well as the rainfall forecast; If the sum of the water shortages of several crops in the target area is greater than the first preset water shortage threshold, there is no need to divide the target area; otherwise, there is a need to divide the target area.

3. The method for irrigation of agricultural and forestry crops according to claim 2, characterized in that: If not present, the first irrigation mode is executed, which includes drip irrigation, sprinkler irrigation and micro sprinkler irrigation, including: Determining a target water shortage amount of the target area according to the sum of water shortage amounts of a plurality of crops in the target area; The target water shortage is used as a reference to divide the water supply into a first water supply range, a second water supply range and a third water supply range, wherein the maximum value of the first water supply range is the minimum value of the second water supply range, and the maximum value of the second water supply range is the minimum value of the third water supply range; When in the first water delivery range, irrigating the target area by means of sprinkler irrigation; When in the second water delivery range, the target area is irrigated simultaneously by drip irrigation and micro-sprinkler irrigation; When in the third water delivery range, the target area is irrigated by drip irrigation.

4. The method for irrigation of agricultural and forestry crops according to claim 2, characterized in that: If so, the target area is divided into a plurality of first sub-areas and a plurality of second sub-areas according to the target water requirements of a plurality of crops in the target area, the weather forecast data and the second preset water shortage threshold, including: When the sum of the water shortage amounts of a plurality of adjacent crops in the target area is greater than or equal to a second preset water shortage threshold, the plurality of adjacent crops are divided into a first sub-area; The remaining areas in the target area that are not divided into the first sub-areas are all used as the second sub-areas.

5. The agricultural and forestry crop irrigation method according to claim 4, characterized in that: The second irrigation mode or the third irrigation mode is adopted for the first sub-area, including: When the wind speed forecast in the weather forecast data is greater than a preset wind speed threshold, adopting a third irrigation mode for the first sub-area; When the wind speed forecast in the weather forecast data is less than or equal to the wind speed threshold, a second irrigation mode is adopted for the first sub-area, which includes: irrigating the crops in the first sub-area simultaneously by drip irrigation and micro-sprinkler irrigation.

6. The method for irrigation of agricultural and forestry crops according to claim 2, characterized in that: When the crop is irrigated using drip irrigation alone, the method also includes: According to the current actual water shortage of the crop, the preset drip irrigation drip frequency and the preset duration, the preset drip irrigation drip frequency is updated to obtain the target drip irrigation drip frequency, and the crop is drip irrigated at the target drip irrigation drip frequency.

7. The method for irrigation of agricultural and forestry crops according to claim 6, characterized in that: According to the current actual water shortage of the crop, the preset drip irrigation drip frequency and the preset duration, the preset drip irrigation drip frequency is updated to obtain the target drip irrigation drip frequency, including: in, is the target drip irrigation drip frequency, To preset the drip irrigation frequency, is the actual current water shortage of crops, The preset duration.

8. The agricultural and forestry crop irrigation method according to claim 1, characterized in that: Based on the planting time data of each crop and the average soil moisture content of each crop, the target water requirement of each crop is determined, including: Determine the growth stage of each crop based on the starting planting time and the current time; Determine the target water requirement for the crop based on the growth stage of the crop and the average soil moisture content of the crop.

9. An agricultural and forestry crop irrigation device, characterized in that: The device comprises: An acquisition module is used to obtain the average soil moisture content of each crop in the target area within a preset burial depth range, wherein each crop is configured with a drip irrigation port, a sprinkler irrigation port and a micro sprinkler irrigation port; A water requirement determination module, used to determine the target water requirement of each crop according to the planting time data of each crop and the average soil moisture content of each crop, wherein the planting time data includes the starting planting time and the current time; A judgment module, configured to judge whether there is a need to divide the target area according to target water requirements of a plurality of crops in the target area, weather forecast data, and a first preset water shortage threshold, wherein the weather forecast data includes rainfall forecast, light intensity forecast, and wind speed forecast; A first execution module, for executing a first irrigation mode if it does not exist, wherein the first irrigation mode includes drip irrigation, sprinkler irrigation and micro sprinkler irrigation; The second execution module is used for dividing the target area into a plurality of first sub-areas and a plurality of second sub-areas according to the target water demand of a plurality of crops in the target area, the weather forecast data and a second preset water shortage threshold, if any, wherein the second irrigation mode or the third irrigation mode is adopted for the first sub-areas, and the third irrigation mode is adopted for the second sub-areas, wherein the second irrigation mode covers drip irrigation and micro-sprinkler irrigation, and the third irrigation mode only includes drip irrigation.

10. An electronic device, characterized in that: include: processor; a memory for storing instructions executable by the processor; Wherein, the processor is configured to execute to implement an agricultural and forestry crop irrigation method as described in any one of claims 1 to 8.

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