A method, device and equipment for irrigation of agricultural and forestry crops

Abstract

The present invention discloses a method, device, and equipment for irrigation of agricultural and forestry crops, comprising: obtaining the average soil moisture content of each crop in a target area within a preset burial depth range; determining 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; determining whether there is a need to divide the target area; if not, executing a first irrigation mode; if so, dividing the target area into a plurality of first sub-areas and a plurality of second sub-areas based on the target water requirements of a plurality of crops in the target area, weather forecast 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 a third irrigation mode for the second sub-areas. The present invention belongs to the field of agricultural irrigation. The present invention can more reasonably select an irrigation method for the target area and improve the utilization rate of water resources.

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 drip irrigation has a slow water replenishment rate; micro-sprinkler irrigation evenly sprays extremely fine water droplets through the nozzle, forming a water mist area near the root of the crop. Because the water flow is small and evenly distributed, it can reduce the problem of excessive moisture on the leaf surface. However, the water droplets sprayed by micro-sprinkler irrigation are small and easily affected by wind, and the water replenishment rate is also slow. Sprinkler irrigation can quickly cover large areas of crops, replenish water quickly, and has strong wind resistance, but sprinkler irrigation has high evaporation and low water resource utilization.

[0003] Generally speaking, agricultural areas have complex environments and constantly changing weather conditions, making it difficult for a single irrigation model to meet real irrigation needs. Therefore, designing irrigation methods for irrigated areas is an urgent issue to be addressed. 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 the irrigation mode for the irrigation area.

[0005] In a first aspect, the present invention provides a method for irrigation of agricultural and forestry crops, the method comprising:

[0006] Obtain the average soil moisture content of each crop in the target area within a preset burial depth range, where each crop is configured with one drip irrigation outlet, one sprinkler irrigation outlet, and one micro-sprinkler irrigation outlet;

[0007] Determine the target water requirement for 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;

[0008] determining whether there is a need to divide the target area based on 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 a rainfall forecast, a light intensity forecast, and a wind speed forecast;

[0009] If not, the first irrigation mode is executed, which includes drip irrigation, sprinkler irrigation and micro sprinkler irrigation;

[0010] If so, 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.

[0011] Furthermore, judging whether there is a need to divide the target area based on the target water requirements of several crops in the target area, weather forecast data, and a first preset water shortage threshold includes:

[0012] Determine the evaporation forecast for each crop based on weather forecast data;

[0013] Determine the water deficit for each crop based on its predicted evaporation and target water requirements, as well as rainfall forecasts;

[0014] 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.

[0015] Furthermore, if it does not exist, the first irrigation mode is executed, which covers drip irrigation, sprinkler irrigation, and micro-sprinkler irrigation, including:

[0016] Determine the target water deficit of the target area based on the sum of the water deficits of several crops in the target area;

[0017] The first water transmission range, the second water transmission range, and the third water transmission range are divided based on the target water shortage, wherein the maximum value of the first water transmission range is the minimum value of the second water transmission range, and the maximum value of the second water transmission range is the minimum value of the third water transmission range;

[0018] When in the first water delivery range, the target area is irrigated by sprinkler irrigation;

[0019] When in the second water delivery range, the target area is irrigated simultaneously by drip irrigation and micro-sprinkler irrigation;

[0020] When in the third water delivery range, the target area is irrigated by drip irrigation.

[0021] 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, weather forecast data, and a second preset water shortage threshold, including:

[0022] 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;

[0023] The remaining areas in the target area that are not divided into the first sub-areas are all used as the second sub-areas.

[0024] Furthermore, adopting the second irrigation mode or the third irrigation mode for the first sub-area includes:

[0025] 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;

[0026] When the wind speed prediction 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.

[0027] Furthermore, when only drip irrigation is used to irrigate the crops, the method further includes:

[0028] According to the current actual water shortage of the crop, the preset drip irrigation frequency and the preset duration, the preset drip irrigation frequency is updated to obtain the target drip irrigation frequency, and the crop is drip irrigated at the target drip irrigation frequency.

[0029] Furthermore, according to the current actual water shortage of the crop, the preset drip irrigation frequency and the preset duration, the preset drip irrigation frequency is updated to obtain the target drip irrigation frequency, including:

[0030]

[0031] in, is the target drip irrigation frequency, To preset the drip irrigation frequency, is the actual current water shortage of crops, The preset duration.

[0032] Furthermore, 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:

[0033] Determine the growth stage of each crop based on its initial planting time and current time;

[0034] Determine the target water requirement of the crop based on the growth stage of the crop and the average soil moisture content of the crop.

[0035] In a second aspect, the present invention provides an agricultural and forestry crop irrigation device, comprising:

[0036] 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 outlet, a sprinkler irrigation outlet, and a micro sprinkler irrigation outlet;

[0037] A water requirement determination module is used to 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;

[0038] a determination module, configured to determine whether there is a need to divide the target area based on 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 a rainfall forecast, a light intensity forecast, and a wind speed forecast;

[0039] A first execution module is configured to execute a first irrigation mode if the first irrigation mode does not exist, where the first irrigation mode includes drip irrigation, sprinkler irrigation, and micro-sprinkler irrigation;

[0040] The second execution module is used to, if present, divide the target area into a plurality of first sub-areas and a plurality of second sub-areas according to the target water requirement of a plurality 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-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.

[0041] In a third aspect, the present invention provides an electronic device, comprising:

[0042] processor;

[0043] a memory for storing processor-executable instructions;

[0044] The processor is configured to execute to implement an agricultural and forestry crop irrigation method provided in the first aspect.

[0045] One or more technical solutions provided in the present invention have at least the following technical effects or advantages:

[0046] 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 based on 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 based on 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 the weather forecast data does not exist, the first irrigation mode is executed, which covers drip irrigation, sprinkler irrigation and micro sprinkler irrigation; if the weather forecast data exists, the target area is divided into several first sub-areas and several second sub-areas based on the target water requirement of several 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.

[0047] By setting a first irrigation mode for target areas with large water shortages, in the early stage of large water shortages, sprinkler irrigation can quickly replenish soil moisture and alleviate drought conditions. In the mid-term, drip irrigation and micro-sprinkler irrigation are adopted to gradually reduce water waste and gradually improve irrigation efficiency. In the later stage, drip irrigation is used to irrigate the target area to maximize water use efficiency, help the crop roots to take root deeply, improve the crop's stress resistance and yield, and also help improve the quality of the crop. 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 use 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 levels. The gradually refined irrigation strategy helps to achieve sustainable agricultural production under conditions of water shortage.

[0048] When the water shortage is not serious, 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.

[0049] The present invention can realize reasonable selection of irrigation modes for crops under different water shortage levels and different natural environments, improve the degree of automation, increase the utilization rate of water resources, and balance the water replenishment speed and water resource utilization rate.

[0050] 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

[0051] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following is a brief introduction to 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 paying any creative work.

[0052] Figure 1 A schematic flow chart of an agricultural and forestry crop irrigation method provided by the present invention;

[0053] Figure 2 This is a schematic diagram of the distribution of crops provided by the present invention. DETAILED DESCRIPTION

[0054] The embodiment of the present invention solves the technical problem in the prior art that the irrigation mode of the irrigation area is single and difficult to meet actual needs by providing an agricultural and forestry crop irrigation method.

[0055] The technical solution of the present invention is to solve the above technical problems, and the overall idea is as follows:

[0056] 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 based on 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 based on 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 determining whether there is a need to divide the target area; wherein the weather forecast data includes a first preset water shortage threshold, and the target water requirement of each crop is determined based on the target water requirement of each crop in the target area. The measured 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.

[0057] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0058] First, the term "and / or" as used herein simply describes a relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A alone, A and B together, or B alone. Furthermore, the character " / " in this document generally indicates an "or" relationship between the associated objects.

[0059] 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 drip irrigation has a slow water replenishment rate; micro-sprinkler irrigation evenly sprays extremely fine water droplets through the nozzle, forming a water mist area near the root of the crop. Because the water flow is small and evenly distributed, it can reduce the problem of excessive moisture on the leaf surface. However, the water droplets sprayed by micro-sprinkler irrigation are small and easily affected by wind, and the water replenishment rate is also slow. Sprinkler irrigation can quickly cover large areas of crops, replenish water quickly, and has strong wind resistance, but sprinkler irrigation has high evaporation and low water resource utilization.

[0060] It should also be noted that during the irrigation process, there is a clear difference between fast and slow water replenishment. 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 may not be evenly distributed. The upper soil may quickly become saturated while the lower soil has not yet 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 layers of the soil are fully moistened. However, a low irrigation rate means that the irrigation process takes longer and is not suitable when water needs to be replenished quickly.

[0061] 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, increase the utilization rate of water resources, and balance the water replenishment speed and water resource utilization rate.

[0062] The present invention provides Figure 1 The method for irrigation of agricultural and forestry crops shown includes steps S11-S15:

[0063] 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 outlet, a sprinkler irrigation outlet, and a micro sprinkler irrigation outlet.

[0064] The target area refers to the area requiring supplemental irrigation. It is understood that different preset burial depth ranges can be set for crops of different types and growth cycles. The specific range can be determined based on the root growth of the crop. The longer the crop's root system, the deeper the preset burial depth range can be. The wider the root diameter range, the wider the preset burial depth range can be. In this disclosure, it is assumed that the crops are evenly distributed.

[0065] 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.

[0066] Step S12: determining 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.

[0067] Specifically, it includes: determining the growth stage of each crop based on the starting planting time and the current time; determining the target water requirement of the crop based on the growth stage of the crop and the average soil moisture content of the crop.

[0068] The starting planting time is the time when the crop is sown or transplanted. The current time is real time. Subtracting the starting planting time from the current time gives the number of days the crop has grown. Refer to the growth cycle table of the crop to understand the duration of its various growth stages. Common growth stages include germination, seedling, growth, flowering, and fruiting. Based on the calculated growth time and the growth cycle table, determine the current growth stage of the crop.

[0069] Crops have different water requirements at different growth stages. The target water requirement of a 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.

[0070] 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 period to comprehensively consider whether water replenishment is required 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.

[0071] Step S13 , 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.

[0072] 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, 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.

[0073] The weather forecast data may be weather forecast data for the target area within the next day. The weather forecast data may also include daily maximum temperature, minimum temperature, water vapor content in the air, etc. The evaporation prediction for 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., without limitation herein.

[0074] 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:

[0075]

[0076] in, For the The water shortage of each crop (within the preset burial depth range) For the Evaporation prediction of crops (preset burial depth range), For the The target water requirement of each crop (within the preset burial depth range) is For the Predicted rainfall for crops (within a preset depth range).

[0077] Specifically, it is possible to determine whether the sum of the water shortages of all crops in the target area is greater than a first preset water shortage threshold value based on the sum of the water shortages of all crops in the target area. If it is greater than a first preset water shortage threshold value, 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.

[0078] 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.

[0079] Step S14: If it does not exist, execute the first irrigation mode, which includes drip irrigation, sprinkler irrigation and micro sprinkler irrigation.

[0080] Specifically, the method includes: determining a target water shortage of a target area based on the sum of the water shortages of several crops in the target area; dividing a first water supply range, a second water supply range, and a 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; irrigating the target area by sprinkler irrigation when in the first water supply range; irrigating the target area by drip irrigation and micro-sprinkler irrigation when in the second water supply range; and irrigating the target area by drip irrigation when in the third water supply range.

[0081] Specifically, the target water shortage of the target area can be determined based on the sum of the water shortages of all crops in the target area. Based on the target water shortage, a first water supply range, a second water supply range, and a third water supply range are divided according to a number of preset percentages.

[0082] For example, if the target water shortage is 100L, and the preset percentages are 80%, 15%, and 5% respectively, it 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.

[0083] By setting a first irrigation mode for target areas with large water shortages, in the early stage of large water shortages, sprinkler irrigation can quickly replenish soil moisture and alleviate drought conditions. In the mid-term, drip irrigation and micro-sprinkler irrigation are adopted to gradually reduce water waste and gradually improve irrigation efficiency. In the later stage, drip irrigation is used to irrigate the target area to maximize water use efficiency, help the crop roots to take root deeply, improve the crop's stress resistance and yield, and also help improve the quality of the crop. 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 use 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 levels. The gradually refined irrigation strategy helps to achieve sustainable agricultural production under conditions of water shortage.

[0084] Step S15, if it exists, 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.

[0085] 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.

[0086] For example, in Figure 2 There are several crops in the present invention. Only A1, A2, A3, A4, A5, A6, and A7 are shown. 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 exceeds the second preset water shortage threshold, A1, A2, A3, and A4 are divided into a first sub-area (a division occurs whenever 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.

[0087] 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.

[0088] 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, which includes: irrigating the crops in the first sub-area simultaneously by drip irrigation and micro-sprinkler irrigation.

[0089] 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.

[0090] 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 using drip irrigation and micro-sprinkler irrigation.

[0091] Unlike drip irrigation, which directly supplies water to crop roots, micro-sprinkler irrigation creates a mist band near the roots of each crop. This mist band circulates through the air between the crops, complementing each other. Division based on the second preset water shortage threshold means that, if there is no severe water shortage in the first sub-area, several adjacent crops are divided into a first sub-area. By using drip and micro-sprinkler irrigation, water resources in the same area are complemented, improving irrigation efficiency.

[0092] In addition, the second sub-area adopts the third irrigation mode, namely drip irrigation. Regardless of the irrigation mode, irrigation can be stopped as long as the water shortage in the area is met.

[0093] When crops are irrigated using drip irrigation alone, the method also includes:

[0094] According to the current actual water shortage of the crop, the preset drip irrigation frequency and the preset duration, the preset drip irrigation frequency is updated to obtain the target drip irrigation frequency, and the crop is drip irrigated at the target drip irrigation frequency.

[0095]

[0096] 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.

[0097] It's understandable that drip irrigation currently uses a natural frequency. However, this uniform drip irrigation method doesn't take into account the crop's actual water needs and soil moisture levels, potentially leading to water seepage and low water resource utilization. (The soil's water absorption rate is closely related to its moisture content; the higher the soil moisture content, the slower the absorption rate.) This invention dynamically adjusts the drip irrigation frequency based on the crop's actual water shortage and soil moisture levels, achieving precise irrigation and avoiding water waste.

[0098] In summary, the present invention provides an agricultural and forestry crop irrigation method, which includes: 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 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; and judging whether there is a need to divide the target area based on 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.

[0099] By setting a first irrigation mode for target areas with large water shortages, in the early stage of large water shortages, sprinkler irrigation can quickly replenish soil moisture and alleviate drought conditions. In the mid-term, drip irrigation and micro-sprinkler irrigation are adopted to gradually reduce water waste and gradually improve irrigation efficiency. In the later stage, drip irrigation is used to irrigate the target area to maximize water use efficiency, help the crop roots to take root deeply, improve the crop's stress resistance and yield, and also help improve the quality of the crop. 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 use 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 levels. The gradually refined irrigation strategy helps to achieve sustainable agricultural production under conditions of water shortage.

[0100] When the water shortage is not serious, 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.

[0101] 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.

[0102] Based on the same inventive concept, the present invention provides an agricultural and forestry crop irrigation device, comprising:

[0103] 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 outlet, a sprinkler irrigation outlet, and a micro sprinkler irrigation outlet;

[0104] A water requirement determination module is used to 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;

[0105] a determination module, configured to determine whether there is a need to divide the target area based on 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 a rainfall forecast, a light intensity forecast, and a wind speed forecast;

[0106] A first execution module is configured to execute a first irrigation mode if the first irrigation mode does not exist, where the first irrigation mode includes drip irrigation, sprinkler irrigation, and micro-sprinkler irrigation;

[0107] The second execution module is used to, if present, divide the target area into a plurality of first sub-areas and a plurality of second sub-areas according to the target water requirement of a plurality 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-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.

[0108] Based on the same inventive concept, the present invention further provides an electronic device, comprising:

[0109] processor;

[0110] a memory for storing processor-executable instructions;

[0111] The processor is configured to execute to implement an agricultural and forestry crop irrigation method as provided above.

[0112] Since the electronic device described 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 described in the embodiment of the present invention, those skilled in the art will be able to understand the specific implementation of the electronic device of this embodiment and its various variations. Therefore, how the electronic device implements the method in the embodiment of the present invention will not be described in detail here. As long as the electronic device used by those skilled in the art to implement the information processing method in the embodiment of the present invention falls within the scope of protection of the present invention.

[0113] Those skilled in the art will appreciate that embodiments of the present invention may be provided as methods, systems, or computer program products. Thus, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. 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 magnetic disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0114] 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 flowcharts and / or block diagrams, as well as combinations of processes and / or blocks in the flowcharts and / or block diagrams, 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 flowcharts and / or block diagrams. 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.

[0115] These computer program instructions may also be stored in a computer readable memory that can direct a computer or other programmable data processing device to work 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 The function specified in one or more boxes.

[0116] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing the instructions executed on the computer or other programmable device for implementing the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0117] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional 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.

[0118] Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such changes and modifications fall within the scope of the claims and their equivalents, the present invention is intended to include such changes and modifications.

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, where each crop is configured with one drip irrigation outlet, one sprinkler irrigation outlet, and one 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 based on 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 a rainfall forecast, a light intensity forecast, and a wind speed forecast, including: determining an evaporation forecast for each crop based on the weather forecast data; determining a water shortage for each crop based on the evaporation forecast, the target water requirement, and the rainfall forecast for each crop; if the sum of the water shortages of the plurality of 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; wherein, if there is a need to divide the target area, dividing the target area into a plurality of first sub-areas and a plurality of second sub-areas based on the target water requirements of the plurality of crops in the target area, the weather forecast data, and a second preset water shortage threshold, including: when the sum of the water shortages of a plurality of adjacent crops in the target area is greater than or equal to the second preset water shortage threshold, dividing the plurality of adjacent crops into a first sub-area; and treating the remaining areas of the target area that are not divided into the first sub-area as second sub-areas; If not, the first irrigation mode is executed, which includes drip irrigation, sprinkler irrigation and micro sprinkler irrigation; If present, 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 agricultural and forestry crop irrigation method according to claim 1, characterized in that: If not, the first irrigation mode is executed, which covers drip irrigation, sprinkler irrigation and micro sprinkler irrigation, including: determining a target water deficit of the target area according to the sum of water deficits of a plurality of crops in the target area; The target water shortage is used as a basis 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 the target area is within 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 in a drip irrigation manner.

3. The agricultural and forestry crop irrigation method according to claim 1, wherein: 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 prediction 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.

4. The agricultural and forestry crop irrigation method according to claim 1, wherein: When crops are irrigated using drip irrigation alone, the method also includes: According to the current actual water shortage of the crop, the preset drip irrigation frequency and the preset duration, the preset drip irrigation frequency is updated to obtain the target drip irrigation frequency, and the crop is drip irrigated at the target drip irrigation frequency.

5. 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 its initial planting time and current time; Determine the target water requirement of the crop based on the growth stage of the crop and the average soil moisture content of the crop.

6. An agricultural and forestry crop irrigation device, characterized in that: An agricultural and forestry crop irrigation method according to any one of claims 1 to 5, 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 outlet, a sprinkler irrigation outlet, and a micro sprinkler irrigation outlet; a water requirement determination module, configured to determine a target water requirement for 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; a determination module, configured to determine whether there is a need to divide the target area based on 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 a rainfall forecast, a light intensity forecast, and a wind speed forecast; A first execution module is configured to execute a first irrigation mode if the first irrigation mode does not exist, wherein the first irrigation mode includes drip irrigation, sprinkler irrigation, and micro-sprinkler irrigation; The second execution module is used to, if present, divide the target area into a plurality of first sub-areas and a plurality of second sub-areas according to the target water requirement of a plurality of crops in the target area, the 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-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.

7. An electronic device, characterized in that: include: processor; a memory for storing instructions executable by the processor; The processor is configured to execute to implement an agricultural and forestry crop irrigation method according to any one of claims 1 to 5.

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