Precision irrigation method for crops that like wetness but fear waterlogging

Abstract

The present application relates to the field of agricultural irrigation technology, and more particularly to a precision irrigation method for wet-loving and water-averse crops, which comprises the following steps: setting irrigation devices and drainage water pumps in the target wet-loving and water-averse crop area; obtaining the irrigation amount and water accumulation discharge amount of the target crop area in a historical period; determining whether to start the irrigation device based on the difference between the irrigation amount and the water accumulation discharge amount in a predetermined time; collecting the soil moisture content in the corresponding time in response to starting the irrigation device; determining whether to start the drainage water pump based on the soil moisture content; if the drainage water pump is started, determining the drainage amount of the drainage device; uploading the irrigation amount of the target crop to be verified by the user end, collecting the soil moisture content of the corresponding target crop, determining the irrigation amount of the irrigation device, and determining the adjustment range of the irrigation amount. The present application overcomes the problem that the wet-loving and water-averse crops are prone to waterlogging or drought stress in the prior art, and the irrigation control precision is low due to the differences in soil water-holding capacity and permeability and crop water requirements.

Description

Technical Field

[0001] This invention relates to the field of agricultural irrigation technology, and in particular to a precision irrigation method for crops that prefer moist conditions but are susceptible to waterlogging. Background Technology

[0002] Crops that thrive in moist conditions but are susceptible to waterlogging are a type of crop with unique requirements for soil moisture. Their growth necessitates sufficient soil moisture to maintain normal physiological metabolism, yet they are unable to tolerate the oxygen-deficient environment caused by waterlogging in the root zone. Their suitable soil moisture content range is narrow, making water management challenging. Traditional field irrigation and drainage systems typically operate independently, with irrigation and drainage devices controlled by fixed thresholds or manual experience. This lack of dynamic decision-making mechanisms based on historical irrigation and drainage data, and closed-loop control methods using soil moisture content as feedback input, coupled with the combined effects of uneven spatial and temporal distribution of rainfall, fluctuations in evaporation and transpiration rates, significant differences in water requirements at different crop growth stages, spatial heterogeneity in soil water holding capacity and permeability, dynamic fluctuations in groundwater levels, and poor drainage in low-lying areas, makes it impossible for traditional methods to dynamically determine irrigation timing based on the difference between irrigation volume and drainage volume within a predetermined timeframe. Furthermore, it is difficult to determine drainage needs and precise drainage volumes, leaving these moisture-loving, waterlogging-sensitive crops vulnerable to waterlogging or drought stress. The precision of irrigation cannot meet the refined water management needs of these crops.

[0003] Chinese Patent Publication No. CN120827075A discloses a method for reducing waterlogging damage in cornfields. The method involves setting up a drainage system in the cornfield and acquiring weather data for future periods. Based on predicted rainfall, the method adjusts the soil moisture content of the cornfield during non-rainfall periods. During rainfall, the method acquires the real-time drainage demand of the cornfield. When the drainage demand is real, the method acquires the growth rate of the cornfield soil moisture content and the drainage rate level of the water supply and drainage system. Based on the drainage rate level of the water supply and drainage system, the method adjusts the drainage rate level of the water supply and drainage system in real-time during rainfall. After rainfall ends and the water supply and drainage system is draining, the method acquires the post-rainfall soil moisture content in real-time and drains the cornfield soil. This method solves the problem in existing technologies that cannot achieve full-process adjustment of cornfield soil moisture content from before to after rainfall, thereby reducing waterlogging damage in cornfields. It reduces waterlogging damage through reasonable cornfield water supply and drainage.

[0004] Therefore, it is evident that the existing technology has the following problems: The current system makes it difficult to determine drainage needs and precise drainage volumes, and lacks a mechanism for verifying irrigation volumes. As a result, moisture-loving and water-sensitive crops are easily subjected to waterlogging or drought stress, and the irrigation precision is insufficient, making it difficult to meet the refined water management needs of such crops. Summary of the Invention

[0005] To address this, the present invention provides a precision irrigation method for moisture-loving and water-sensitive crops, which overcomes the problems of existing technologies where moisture-loving and water-sensitive crops are easily subjected to waterlogging or drought stress, and where irrigation control precision is low due to differences in soil water holding capacity and permeability as well as differences in crop water requirements.

[0006] To achieve the aforementioned objective, the present invention provides a precision irrigation method for moisture-loving but waterlogged-sensitive crops, comprising: Irrigation devices and drainage pumps will be installed in areas where crops that prefer moist conditions but are susceptible to waterlogging are targeted. Obtain irrigation and runoff discharge data for the target crop area within a historical period; Whether to activate the irrigation device is determined based on the difference between the irrigation volume and the water discharge volume within a predetermined time period; In response to the activation of the irrigation device, soil moisture content is collected within the corresponding time period; Whether to start the drainage pump is determined based on the soil moisture content and the predetermined soil moisture content threshold. If the drainage pump is started, the drainage volume of the drainage device is determined based on the difference between the soil moisture content and the predetermined soil moisture content threshold. The user uploads the irrigation amount of the target crop to be verified, collects the soil moisture content of the corresponding target crop, determines the irrigation amount of the irrigation device based on the soil moisture content, and determines the adjustment range of the irrigation amount based on the ratio of the soil moisture content to a predetermined soil moisture content threshold.

[0007] Furthermore, the process of determining whether to activate the irrigation system includes: Extract the difference between the irrigation volume and the water discharge volume within the predetermined time period; If the difference is greater than a predetermined irrigation discharge difference threshold, then the irrigation device is activated.

[0008] Furthermore, the process of determining whether to start the drainage pump includes: Obtain the soil moisture content within the corresponding time period; If the soil moisture content is greater than a predetermined soil moisture content threshold, then the drainage pump will be started.

[0009] Furthermore, the irrigation system includes pipes with through holes, a water supply reservoir, and a water pump.

[0010] Furthermore, a drainage pump is connected to the pipeline to drain water through the pipeline with a through hole.

[0011] Furthermore, the process of determining the drainage capacity of the drainage device includes: Obtain the difference between the soil moisture content and the predetermined soil moisture content threshold; If the difference is greater than the predetermined difference in soil moisture content, the drainage volume of the regulating drainage device is determined.

[0012] Furthermore, the process of determining the drainage volume of the drainage device also includes: Obtain the drainage volume of the drainage device for historical periods and the predetermined drainage volume threshold; The adjustment range of the drainage volume is determined based on the difference between the drainage volume and the predetermined drainage volume threshold. The adjustment range of the drainage volume is positively correlated with the difference between the drainage volume and the predetermined drainage volume threshold.

[0013] Furthermore, the process of determining the irrigation amount of the irrigation device includes: Obtain the soil moisture content of the target crop and the predetermined soil moisture content threshold; If the soil moisture content is less than a predetermined soil moisture content threshold, the increase in the irrigation amount of the irrigation device is determined.

[0014] Furthermore, the increase in irrigation amount is determined based on the ratio of a predetermined soil moisture content threshold to the soil moisture content.

[0015] This invention also provides a precision irrigation system for moisture-loving but waterlogged-sensitive crops, comprising: A drainage pump unit, comprising a drainage pump for draining water during flooding and recording drainage data over a historical period; An irrigation device unit, comprising an irrigation device for irrigating during drought and recording irrigation data for historical cycles; The soil sampling unit is used to collect soil moisture content within the historical period and the corresponding actual time and record the soil moisture content threshold of the historical period. The analysis unit is used to analyze the difference between the soil moisture content and a predetermined soil moisture content threshold; and to analyze the ratio of the soil moisture content to the predetermined soil moisture content threshold. The verification unit is used to obtain the irrigation amount of the target crop to be verified uploaded by the user and to determine the irrigation amount of the irrigation device. The adjustment unit is used to determine the adjustment range of irrigation amount based on the ratio of soil moisture content to a predetermined soil moisture content threshold.

[0016] Compared with existing technologies, the beneficial effects of this invention are as follows: This invention sets up irrigation devices and drainage pumps in the target moisture-loving, water-sensitive crop area; obtains the irrigation volume and water discharge volume of the target crop area within a historical period; determines whether to activate the irrigation device based on the difference between the irrigation volume and water discharge volume within a predetermined time period; in response to activating the irrigation device, collects the soil moisture content within the corresponding time period; determines whether to activate the drainage pump based on the soil moisture content; if the drainage pump is activated, determines the drainage volume of the drainage device; the user uploads the irrigation volume of the target crop to be verified, collects the corresponding soil moisture content of the target crop, determines the irrigation volume of the irrigation device, and determines the adjustment range of the irrigation volume. This invention overcomes the problems of existing technologies where moisture-loving, water-sensitive crops are easily subjected to waterlogging or drought stress, and where the accuracy of irrigation control is low due to differences in soil water holding capacity and permeability, as well as differences in crop water requirements.

[0017] In particular, this invention extracts the difference between irrigation volume and water discharge in a target crop area within a predetermined time period and compares it with a predetermined threshold for the difference. When the difference exceeds the threshold, the irrigation device is activated, achieving dynamic and precise judgment of irrigation timing. Based on historical irrigation and drainage data, the difference comprehensively reflects the net water balance of the field: when the irrigation volume is significantly greater than the water discharge, it indicates insufficient net water accumulation in the field and a soil moisture deficit, requiring timely irrigation; conversely, it indicates sufficient field moisture and no need for irrigation. Compared to traditional methods relying on manual experience or fixed-time irrigation, this embodiment reduces the subjectivity and lag in judging irrigation timing, lowers the risk of drought or flooding caused by irrigation too early or too late, and improves the timeliness and accuracy of irrigation. Meanwhile, the judgment mechanism is interconnected with the subsequent drainage control and irrigation adjustment based on soil moisture content, forming a closed-loop control system that combines historical data prediction with real-time feedback. This enables coordinated irrigation and drainage, reduces water waste, improves the growth environment of moisture-loving and waterlogging-sensitive crops, and has significant effects on water conservation, increased yield, and reduction of waterlogging and drought stress.

[0018] In particular, this invention collects soil moisture content over a specific time period and compares it with a predetermined soil moisture content threshold. When the soil moisture content exceeds the threshold, it determines to activate the drainage pump to drain the water, thus achieving proactive and precise drainage control. The embodiment uses real-time soil moisture content as the direct basis, accurately reflecting the actual moisture state of the root zone soil after irrigation or rainfall: when the moisture content exceeds the threshold, it indicates that the field moisture has exceeded the suitable range for crops, posing a risk of waterlogging stress, and the drainage pump needs to be activated promptly to remove excess water; conversely, it indicates that the soil moisture is suitable and drainage is unnecessary. Compared to traditional methods that rely on manual observation or fixed-time drainage, this embodiment transforms drainage control from passive to proactive, dynamically responding based on real-time moisture content, reducing drainage delays or over-drainage, lowering the risk of root hypoxia and suffocation, and protecting crop root health. Meanwhile, this judgment mechanism is interconnected with the preceding steps of determining the irrigation timing based on the difference between irrigation and drainage and the subsequent steps of determining the drainage volume, so as to realize the closed-loop linkage of irrigation on demand and drainage exceeding the limit, improve the accuracy of irrigation and drainage coordination, improve the water environment of the root layer of crops that prefer moisture and are susceptible to waterlogging, and have significant effects on preventing waterlogging, protecting roots and promoting growth.

[0019] In particular, this invention utilizes an irrigation device comprised of a pipe with through-holes, a water supply reservoir, and a water pump, with a drainage pump connected to the aforementioned pipe. This allows the same pipe system to both irrigate through the through-holes and serve as a drainage channel, drawing in and draining accumulated water from the field, thus achieving integrated irrigation and drainage. During irrigation, the water pump delivers water from the water supply reservoir to the pipe, where it seeps evenly through the through-holes to irrigate the target crop area. During drainage, accumulated water from the field is pumped out of the field through the through-holes into the pipe by the drainage pump. Compared to traditional systems where irrigation pipelines and drainage channels are separate, this embodiment uses a single pipe to simultaneously perform irrigation and drainage functions, eliminating the construction and maintenance costs of independent drainage facilities, saving space, and reducing system complexity and engineering costs. Furthermore, the even distribution of the through-holes allows irrigation water to seep out from multiple points along the pipe, reducing localized concentrated scouring and uneven irrigation, thus improving irrigation uniformity. Furthermore, the integrated irrigation and drainage structure, in conjunction with the preceding mechanism of determining irrigation timing based on the difference between irrigation and drainage and controlling drainage based on soil moisture content, enables rapid switching and coordinated linkage between irrigation and drainage within the same pipeline system. This shortens the control response time, improves irrigation and drainage operation efficiency, and provides precise and efficient water management for moisture-loving and waterlogging-sensitive crops.

[0020] In particular, this invention achieves on-demand quantitative adjustment of drainage volume by obtaining the difference between soil moisture content and a predetermined soil moisture content threshold, and determining the drainage volume of the drainage device when this difference exceeds a predetermined soil moisture content change difference. The degree of deviation of the moisture content from the suitable range is used as the adjustment basis: the greater the deviation, the more excessive the field moisture, and the greater the need to increase the drainage volume accordingly. Compared with traditional drainage methods that only have start-stop functions, this embodiment upgrades drainage control to reduce insufficient or excessive drainage, making the drainage volume precisely match the actual water accumulation level, improving drainage efficiency, reducing energy consumption, preventing waterlogging stress, and ensuring the healthy growth of roots of moisture-loving but waterlogged-sensitive crops.

[0021] In particular, this invention obtains the drainage volume of the drainage device over historical periods and a predetermined drainage volume threshold, and determines the drainage volume adjustment range based on the difference between the two. The adjustment range is positively correlated with this difference, achieving quantitative and adaptive determination of the adjustment range. The larger the deviation between the drainage volume and the threshold, the greater the gap between the actual drainage and the target demand, requiring a larger adjustment to quickly correct the deviation; the smaller the deviation, the smaller the adjustment. Compared with traditional methods of fixed range or manually set adjustment amounts, this embodiment adaptively changes the adjustment range according to the magnitude of the deviation, reducing system oscillations caused by over-adjustment or slow response due to under-adjustment, improving the stability and response speed of drainage control, ensuring that the drainage volume quickly converges to a suitable range, and effectively protecting the stable water environment of the root system of moisture-loving and waterlogged-sensitive crops. Attached Figure Description

[0022] Figure 1 This is a structural block diagram of a precision irrigation system for moisture-loving and waterlogging-sensitive crops according to an embodiment of the present invention; Figure 2 This is a flowchart illustrating the steps of a precision irrigation method for moisture-loving and waterlogging-sensitive crops according to an embodiment of the present invention. Figure 3 This is a flowchart illustrating the steps for determining whether to activate the irrigation device according to an embodiment of the present invention. Figure 4 This is a flowchart illustrating the steps for determining whether to start the drainage pump in an embodiment of the present invention. Detailed Implementation

[0023] To make the objectives and advantages of the present invention clearer, the present invention will be further described below with reference to embodiments; it should be understood that the specific embodiments described herein are merely for explaining the present invention and are not intended to limit the present invention.

[0024] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0025] Please see Figure 1This is a structural block diagram of a precision irrigation system for moisture-loving and waterlogging-sensitive crops according to an embodiment of the present invention. The system described in the embodiment includes: A drainage pump unit, comprising a drainage pump for draining water during flooding and recording drainage data over a historical period; An irrigation device unit, comprising an irrigation device for irrigating during drought and recording irrigation data for historical cycles; The soil sampling unit is used to collect soil moisture content within the historical period and the corresponding actual time and record the soil moisture content threshold of the historical period. The analysis unit is used to analyze the difference between the soil moisture content and a predetermined soil moisture content threshold; and to analyze the ratio of the soil moisture content to the predetermined soil moisture content threshold. The verification unit is used to obtain the irrigation amount of the target crop to be verified uploaded by the user and to determine the irrigation amount of the irrigation device. The adjustment unit is used to determine the adjustment range of irrigation amount based on the ratio of soil moisture content to a predetermined soil moisture content threshold.

[0026] This embodiment constructs a modular precision irrigation system with clear functions and well-defined division of labor by setting up a drainage pump unit, an irrigation device unit, a soil sampling unit, an analysis unit, a verification unit, and an adjustment unit, providing systematic support for the aforementioned precision irrigation methods. The drainage pump unit and the irrigation device unit respectively undertake drainage and irrigation execution functions, and automatically record drainage and irrigation data within historical periods, accumulating a data foundation for irrigation and drainage decisions; the soil sampling unit continuously collects soil moisture content at historical periods and corresponding actual times and records historical period thresholds, providing real-time basis for moisture status judgment; the analysis unit performs quantitative analysis on the difference and ratio between moisture content and the threshold, providing computational support for drainage control and irrigation adjustment; the verification unit obtains the irrigation volume to be verified uploaded by the user and determines the actual irrigation volume, realizing the verification of irrigation results; the adjustment unit determines the irrigation volume adjustment range based on the ratio of moisture content to the threshold, forming a closed-loop correction of irrigation volume. Data from all units are interconnected and work together to integrate data collection, analysis, verification, and adjustment into a complete closed loop. This makes irrigation and drainage decisions based on evidence and the process traceable, significantly improving the system's automation level, data utilization rate, and control accuracy. It provides continuous, stable, and precise water management support for moisture-loving and waterlogging-sensitive crops.

[0027] Please see Figure 2 This is a flowchart illustrating the steps of a precision irrigation method for moisture-loving but waterlogged-sensitive crops according to an embodiment of the present invention. The method described in the embodiment includes: Step S1: Install irrigation devices and drainage pumps in the target area of ​​crops that prefer moist conditions but are susceptible to waterlogging; Step S2: Obtain the irrigation volume and water discharge volume of the target crop area within the historical period, and determine whether to start the irrigation device based on the difference between the irrigation volume and water discharge volume within a predetermined time period. Step S3: In response to starting the irrigation device, the soil moisture content within the corresponding time period is collected, and the drainage pump is determined whether to start based on the soil moisture content and the predetermined soil moisture content threshold. Step S4: If the drainage pump is started, the drainage volume of the drainage device is determined based on the difference between the soil moisture content and the predetermined soil moisture content threshold. Step S5: The user uploads the irrigation amount of the target crop to be verified, collects the soil moisture content of the corresponding target crop, determines the irrigation amount of the irrigation device based on the soil moisture content, and determines the adjustment range of the irrigation amount based on the ratio of the soil moisture content to the predetermined soil moisture content threshold.

[0028] This embodiment involves setting up irrigation devices and drainage pumps in a target area for moisture-loving but waterlogged-sensitive crops; acquiring irrigation volume and water discharge volume for the target crop area over a historical period; determining whether to activate the irrigation device based on the difference between the irrigation volume and water discharge volume within a predetermined time period; in response to activating the irrigation device, collecting soil moisture content within the corresponding time period; determining whether to activate the drainage pump based on the soil moisture content; if the drainage pump is activated, determining the drainage volume of the drainage device; and having the user upload the irrigation volume of the target crop to be verified, collect the corresponding soil moisture content of the target crop, determine the irrigation volume of the irrigation device, and determine the adjustment range of the irrigation volume. This invention overcomes the problems in the prior art where moisture-loving but waterlogged-sensitive crops are easily subjected to waterlogging or drought stress, and where the accuracy of irrigation control is low due to differences in soil water holding capacity and permeability as well as differences in crop water requirements.

[0029] Please see Figure 3 This is a flowchart illustrating the steps of determining whether to activate the irrigation device according to an embodiment of the present invention. The process of determining whether to activate the irrigation device includes: Obtain the irrigation volume and water discharge volume within a predetermined time period; Extract the difference between the irrigation volume and the water discharge volume within the predetermined time period; If the difference is greater than a predetermined irrigation discharge difference threshold, then the irrigation device is activated.

[0030] This embodiment extracts the difference between irrigation volume and water discharge in the target crop area within a predetermined time period and compares it with a predetermined threshold for the difference. When the difference exceeds the threshold, the irrigation device is activated, achieving dynamic and precise judgment of irrigation timing. Based on historical irrigation and drainage data, the difference comprehensively reflects the net water balance of the field: when the irrigation volume significantly exceeds the water discharge, it indicates insufficient net water accumulation in the field and a soil moisture deficit, requiring timely irrigation to replenish it. Compared with traditional methods relying on manual experience or fixed-time irrigation, this embodiment reduces the subjectivity and lag in judging irrigation timing, lowers the risk of drought and flooding caused by irrigation too early or too late, and improves the timeliness and accuracy of irrigation. Simultaneously, the judgment mechanism is interconnected with subsequent drainage control and irrigation volume adjustment based on soil moisture content, forming a closed-loop control system combining historical data prediction and real-time feedback. This achieves coordinated irrigation and drainage, reduces water waste, improves the growth environment for moisture-loving but waterlogged-sensitive crops, and has significant effects on water conservation, increased yield, and reduction of waterlogging and drought stress.

[0031] Please see Figure 4 The diagram shown is a flowchart illustrating the steps of determining whether to start the drainage pump according to an embodiment of the present invention. The process of determining whether to start the drainage pump includes: Obtain the soil moisture content within the corresponding time period; If the soil moisture content is greater than a predetermined soil moisture content threshold, then the drainage pump will be started.

[0032] This embodiment collects soil moisture content data over a specific time period and compares it to a predetermined soil moisture content threshold. When the soil moisture content exceeds the threshold, a drainage pump is activated to drain the water, achieving proactive and precise drainage control. Using real-time soil moisture content as the direct basis, this embodiment accurately reflects the actual moisture state of the root zone soil after irrigation or rainfall: when the moisture content exceeds the threshold, it indicates that the field moisture has exceeded the suitable range for crops, posing a risk of waterlogging stress, requiring timely activation of the drainage pump to remove excess water; conversely, it indicates that the soil moisture is suitable and drainage is unnecessary. Compared to traditional methods relying on manual observation or fixed-time drainage, this embodiment transforms drainage control from passive to proactive, dynamically responding based on real-time moisture content. This reduces drainage delays or over-drainage, lowers the risk of root hypoxia and suffocation, and protects crop root health. Meanwhile, this judgment mechanism is interconnected with the preceding steps of determining the irrigation timing based on the difference between irrigation and drainage and the subsequent steps of determining the drainage volume, so as to realize the matching and linkage of irrigation and drainage on demand, improve the accuracy of irrigation and drainage coordination, improve the water environment of the root layer of crops that prefer moisture but are susceptible to waterlogging, and have significant effects on preventing waterlogging, protecting roots and promoting growth.

[0033] Specifically, the irrigation system includes pipes with through holes, a water supply reservoir, and a water pump.

[0034] Specifically, a drainage pump is connected to the pipe to drain water through the pipe, which has a through hole.

[0035] The irrigation system consists of pipes with through-holes, a water supply reservoir, and a water pump. A drainage pump is connected to the pipes, allowing the same system to both irrigate through-holes and drain field water, achieving integrated irrigation and drainage. During irrigation, the pump delivers water from the reservoir to the pipes, which then seeps evenly through the through-holes to irrigate the target crop area. During drainage, field water is pumped out through the through-holes into the pipes by the drainage pump and discharged outside the field. Compared to traditional systems where irrigation and drainage are separate, this embodiment uses a single pipe for both irrigation and drainage, saving on the construction and maintenance costs of independent drainage facilities, saving space, and reducing system complexity and project cost. Furthermore, the even distribution of through-holes allows irrigation water to seep out at multiple points along the pipes, reducing localized concentrated scouring and uneven irrigation, thus improving irrigation uniformity. By combining the integrated irrigation and drainage structure with the preceding mechanism of determining irrigation timing based on the difference between irrigation and drainage and controlling drainage based on soil moisture content, it is possible to achieve rapid switching and coordinated linkage between irrigation and drainage in the same pipeline system, shorten the control response time, improve the efficiency of irrigation and drainage operations, and provide precise and efficient water management for moisture-loving and waterlogging-sensitive crops.

[0036] Specifically, the process of determining the drainage capacity of the drainage device includes: Obtain the difference between the soil moisture content and the predetermined soil moisture content threshold; If the difference is greater than the predetermined difference in soil moisture content, the drainage volume of the regulating drainage device is determined.

[0037] This embodiment achieves on-demand quantitative adjustment of drainage volume by obtaining the difference between soil moisture content and a predetermined soil moisture content threshold, and determining the drainage volume of the drainage device when the difference exceeds the predetermined soil moisture content change difference. The degree of deviation of moisture content from the suitable range is used as the adjustment basis: the greater the deviation, the more excessive the field moisture, and the greater the need to increase the drainage volume accordingly. Compared with traditional drainage methods that only have start-stop functions, this embodiment upgrades drainage control to reduce insufficient or excessive drainage, accurately matches the drainage volume with the actual water accumulation level, improves drainage efficiency, reduces energy consumption, prevents waterlogging stress, and ensures the healthy root growth of moisture-loving but waterlogged-sensitive crops.

[0038] Specifically, the process of determining the drainage volume of the drainage device also includes: Obtain the drainage volume of the drainage device for historical periods and the predetermined drainage volume threshold; The adjustment range of the drainage volume is determined based on the difference between the drainage volume and the predetermined drainage volume threshold. The adjustment range of the drainage volume is positively correlated with the difference between the drainage volume and the predetermined drainage volume threshold.

[0039] This embodiment obtains the drainage volume of the drainage device over historical periods and a predetermined drainage volume threshold. Based on the difference between these two values, it determines the adjustment range for the drainage volume, and the adjustment range is positively correlated with this difference, achieving quantitative and adaptive determination of the adjustment range. A larger deviation between the drainage volume and the drainage volume threshold indicates a greater gap between the actual drainage and the target demand, requiring a larger adjustment to quickly correct the deviation; a smaller deviation requires only a small adjustment. Compared to traditional methods with fixed ranges or manually set adjustment amounts, this embodiment adaptively changes the adjustment range according to the magnitude of the deviation, reducing system oscillations caused by over-adjustment or slow response due to under-adjustment. This improves the stability and response speed of drainage control, ensuring that the drainage volume quickly converges to a suitable range, effectively protecting the stable water environment for the roots of moisture-loving but waterlogged-sensitive crops.

[0040] Specifically, the process of determining the irrigation volume of the irrigation system includes: Obtain the soil moisture content of the target crop and the predetermined soil moisture content threshold; If the soil moisture content is less than a predetermined soil moisture content threshold, the increase in the irrigation amount of the irrigation device is determined.

[0041] Specifically, the increase in irrigation amount is determined based on the ratio of a predetermined soil moisture content threshold to the soil moisture content.

[0042] This embodiment obtains the soil moisture content of the target crop and a predetermined soil moisture content threshold. When the moisture content is less than the threshold, it determines the increase in irrigation amount. The increase is based on the ratio of the predetermined threshold to the measured moisture content, achieving quantitative and adaptive adjustment of irrigation. The ratio of the soil moisture content threshold to the measured moisture content reflects the degree of soil water shortage; a larger ratio indicates a more severe water shortage and requires a greater increase in irrigation. As irrigation progresses and the moisture content recovers, the ratio approaches one, and the increase decreases accordingly until it stops, reducing excessive irrigation. Compared to traditional methods that start and stop irrigation based on a fixed threshold and do not adjust the irrigation amount once set, this embodiment dynamically matches the irrigation amount to the degree of water shortage. This prevents drought stress caused by insufficient irrigation and reduces waterlogging caused by excessive irrigation, improving water use efficiency, reducing the risk of waterlogging, and ensuring that moisture-loving but water-sensitive crops are always within a suitable moisture range, guaranteeing their normal growth.

[0043] The technical solution of the present invention has been described in conjunction with the embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to the specific implementation methods of the embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will all fall within the scope of protection of the present invention.

Claims

1. A precision irrigation method for crops that prefer moist conditions but are susceptible to waterlogging, characterized in that, include: Irrigation devices and drainage pumps will be installed in areas where crops that prefer moist conditions but are susceptible to waterlogging are targeted. Obtain irrigation and runoff discharge data for the target crop area within a historical period; Whether to activate the irrigation device is determined based on the difference between the irrigation volume and the water discharge volume within a predetermined time period; In response to the activation of the irrigation device, soil moisture content is collected within the corresponding time period; Whether to start the drainage pump is determined based on the soil moisture content and the predetermined soil moisture content threshold. If the drainage pump is started, the drainage volume of the drainage device is determined based on the difference between the soil moisture content and the predetermined soil moisture content threshold. The user uploads the irrigation amount of the target crop to be verified, collects the soil moisture content of the corresponding target crop, determines the irrigation amount of the irrigation device based on the soil moisture content, and determines the adjustment range of the irrigation amount based on the ratio of the soil moisture content to a predetermined soil moisture content threshold.

2. The precision irrigation method for moisture-loving but waterlogged-sensitive crops according to claim 1, characterized in that, The process of determining whether to start the irrigation system includes: Extract the difference between the irrigation volume and the water discharge volume within the predetermined time period; If the difference is greater than a predetermined irrigation discharge difference threshold, then the irrigation device is activated.

3. The precision irrigation method for moisture-loving but waterlogged-sensitive crops according to claim 1, characterized in that, The process of determining whether to start the drainage pump includes: Obtain the soil moisture content within the corresponding time period; If the soil moisture content is greater than a predetermined soil moisture content threshold, then the drainage pump will be started.

4. The precision irrigation method for moisture-loving but waterlogged-sensitive crops according to claim 1, characterized in that, Irrigation equipment includes pipes with through holes, a water supply reservoir, and a water pump.

5. The precision irrigation method for moisture-loving but waterlogged-sensitive crops according to claim 1, characterized in that, The drainage pump is connected to a pipe with a through hole to drain water through the pipe.

6. The precision irrigation method for moisture-loving but waterlogged-sensitive crops according to claim 1, characterized in that, The process of determining the drainage capacity of a drainage system includes: Obtain the difference between the soil moisture content and the predetermined soil moisture content threshold; If the difference is greater than the predetermined difference in soil moisture content, the drainage volume of the regulating drainage device is determined.

7. The precision irrigation method for moisture-loving but waterlogged-sensitive crops according to claim 6, characterized in that, The process of determining the drainage capacity of the drainage device also includes: Obtain the drainage volume of the drainage device for historical periods and the predetermined drainage volume threshold; The adjustment range of the drainage volume is determined based on the difference between the drainage volume and the predetermined drainage volume threshold. The adjustment range of the drainage volume is positively correlated with the difference between the drainage volume and the predetermined drainage volume threshold.

8. The precision irrigation method for moisture-loving but waterlogged-sensitive crops according to claim 1, characterized in that, The process of determining the irrigation volume of an irrigation system includes: Obtain the soil moisture content of the target crop and the predetermined soil moisture content threshold; If the soil moisture content is less than a predetermined soil moisture content threshold, the increase in the irrigation amount of the irrigation device is determined.

9. The precision irrigation method for moisture-loving but waterlogged-sensitive crops according to claim 8, characterized in that, The increase in irrigation amount is determined based on the ratio of a predetermined soil moisture content threshold to the soil moisture content.

10. A system for precision irrigation of moisture-loving and waterlogging-sensitive crops according to any one of claims 1 to 9, characterized in that, include: A drainage pump unit, comprising a drainage pump for draining water during flooding and recording drainage data over a historical period; An irrigation device unit, comprising an irrigation device for irrigating during drought and recording irrigation data for historical cycles; The soil sampling unit is used to collect soil moisture content within the historical period and the corresponding actual time and record the soil moisture content threshold of the historical period. The analysis unit is used to analyze the difference between the soil moisture content and a predetermined soil moisture content threshold. And analyze the ratio of soil moisture content to a predetermined soil moisture content threshold; The verification unit is used to obtain the irrigation amount of the target crop to be verified uploaded by the user and to determine the irrigation amount of the irrigation device. The adjustment unit is used to determine the adjustment range of irrigation amount based on the ratio of soil moisture content to a predetermined soil moisture content threshold.

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