A saline-alkali soil winter irrigation disease and pest control device and method
By setting up blocking ditches, permeable pipes, and drip irrigation pipes in saline-alkali land, combined with Roots vacuum pumps and soil aerators, and using heat source drying gas and aeration to treat the soil, the problem of high water permeability in winter irrigation and pest control in saline-alkali land was solved. This achieved rapid and efficient pest control, reduced costs, enhanced soil permeability, and met pest control standards.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- BEIFANG UNIV OF NATITIES
- Filing Date
- 2024-09-30
- Publication Date
- 2026-06-12
AI Technical Summary
In the treatment of pests and diseases during winter irrigation in saline-alkali land, the high soil moisture and poor infiltration in low-lying areas lead to high treatment costs and long cycles, making it difficult to balance water resource use. In particular, during the treatment of low-lying saline-alkali land, the soil is compacted and the infiltration effect is low. Treatment by natural infiltration alone takes a long time, increasing treatment costs and reducing efficiency.
Design a winter irrigation and pest control device for saline-alkali land, including blocking ditches, permeable pipes and drip irrigation pipes, combined with a Roots vacuum pump and a soil aerator. The device uses a heat source to dry the gas and aerate the soil, and uses fresh water to neutralize the salinity. The Roots vacuum pump draws in the gas and water medium to form a rapid infiltration cycle, shortening the treatment cycle.
By balancing water resource use, enhancing soil permeability, shortening the treatment cycle, and reducing treatment costs, we can achieve efficient control of pests and diseases, thereby meeting the goal of increasing production and efficiency.
Smart Images
Figure CN119498053B_ABST
Abstract
Description
Technical fields:
[0001] This invention relates to the fields of saline-alkali land management and pest and disease control, and particularly to equipment and methods for controlling pests and diseases during winter irrigation in saline-alkali land. Background technology:
[0002] Saline-alkali land cannot be directly cultivated (due to heavy metals). It requires large-scale irrigation to dissolve the salt into the soil at a depth of 50-70cm before cultivation can begin. This is what is commonly referred to as winter irrigation.
[0003] Winter irrigation, also known as winter irrigation, is an agricultural management measure with benefits including mitigating frost damage, preventing drought, preventing wind erosion, loosening the soil, and reducing pest and disease damage. Specifically, winter irrigation helps remove pests and diseases from the soil in the following ways: 1. Reducing pest and disease damage (after winter irrigation, insect eggs on the soil surface are washed into the icy water and killed, thus reducing the number of pests and diseases). 2. Improving the soil environment (winter irrigation helps improve the soil environment by compacting the soil and breaking up clods, which helps improve soil fertility and creates a good soil environment for wheat growth, thereby reducing the occurrence of pests and diseases). 3. Drowning some overwintering pests (in dry years, winter irrigation can drown some overwintering pests, reducing the occurrence of pests and diseases in the following year). Therefore, winter irrigation has significant technical effects in the management of saline-alkali land and the control of pests and diseases. However, due to regional differences and the widespread undulating terrain, the management of saline-alkali land and the control of pests and diseases through winter irrigation are both quite difficult. The treatment of low-lying saline-alkali land is quite difficult, while irrigation of higher-lying areas is scarce, making it impossible to balance water resources during pest and disease control. In particular, the soil in low-lying saline-alkali land has a high moisture content and is compacted, resulting in low infiltration. Relying solely on natural infiltration leads to a long treatment cycle, which greatly increases treatment costs and efficiency. Summary of the Invention:
[0004] Therefore, it is necessary to design a pest and disease control device and method for winter irrigation in saline-alkali land that can overcome the above problems, balance the use of water resources, aerate and decompose the soil to enhance permeability and control pests and diseases, shorten the treatment cycle, and meet the pest and disease control standards.
[0005] In a first aspect, this application provides a winter irrigation and pest control device for saline-alkali land, comprising: a blocking ditch dug between high ground and low ground, a transport permeable pipe pre-buried along the width direction of the low ground, a drip irrigation pipe laid along the width direction of the high ground, a pressure pump set assembled at the first end of the blocking ditch, and a water pump set assembled at the second end of the blocking ditch.
[0006] The pressure pump assembly includes a Roots vacuum pump in a first operating state and a second operating state; the Roots vacuum pump is connected to the transport permeable pipe and the drip irrigation pipe via valve piping; wherein...
[0007] When the Roots vacuum pump is in its first working state, it pumps heat source drying gas into the interior of the transport permeable pipe and the drip irrigation pipe.
[0008] When the Roots vacuum pump is in its second working state, it draws gas and water into the interior of the transport permeable pipe and the drip irrigation pipe, and discharges the water into the interior of the blocking trench through the valve pipeline.
[0009] The water pump set includes: a deep water well and a pressure tank connected to the deep water well pump; the pressure tank is connected to the transport permeable pipe and the drip irrigation pipe respectively through a set of switching valves.
[0010] The saline-alkali land winter irrigation pest and disease control equipment also includes a soil aerator for secondary aeration of the highlands and lowlands;
[0011] The soil aerator uses compressed gas for primary aeration during the first stage of aeration.
[0012] The soil aerator uses insecticidal gas for secondary aeration.
[0013] Preferably, a photovoltaic panel is connected above the blocking trench via a support assembly.
[0014] Preferably, multiple permeable water pipes are pre-buried along the width direction in the low-lying area, and multiple drip irrigation pipes are pre-buried along the width direction in the high-lying area;
[0015] The multiple drip irrigation pipes are connected to a first main pipeline located inside the blocking trench;
[0016] The multiple permeable pipes are connected to a second main pipeline located inside the blocking trench.
[0017] Preferably, the valve pipeline includes a first tee pipe and a second tee pipe; wherein,
[0018] The Roots vacuum pump is connected to the first main pipeline via a first tee pipe;
[0019] The Roots vacuum pump is connected to the second main pipeline via a second tee pipe;
[0020] Both the first tee and the second tee are equipped with pressure solenoid valves facing the blocking trench at their free ports.
[0021] Preferably, a multi-stage desalination filtration system is installed inside the blocking trench and at the front end of the deep water well.
[0022] Preferably, the switching valve assembly includes a first switching valve and a second switching valve connected to the bottom of the pressure tank; wherein,
[0023] The first switching valve is connected to the first main pipeline, and the second switching valve is connected to the second main pipeline.
[0024] In this invention, the soil structure is dried by conveying heat-generating drying gas, and the soil is loosened by primary aeration. During the secondary aeration process, pests and diseases in the soil are initially controlled. Fresh water is used to neutralize the salt in the soil for infiltration, which effectively improves the efficiency of saline-alkali land management while achieving pest and disease control during winter irrigation. At the same time, the flow-increasing effect of absorbing gas and water media is used to make the infiltrated water quickly form a cycle, shortening the treatment cycle, meeting the pest and disease control standards, reducing treatment costs, and achieving the goal of increasing production and efficiency.
[0025] Secondly, a method for controlling pests and diseases during winter irrigation in saline-alkali land includes the following steps:
[0026] S1. Shallow tillage and leveling of high and low-lying areas;
[0027] S2. Dig blocking ditches on the slopes adjacent to high and low areas, and lay slope protection boards inside the blocking ditches;
[0028] S3. Pre-bury permeable pipes in low-lying areas and drip irrigation pipes in high-lying areas, and connect them to the first and second main pipelines accordingly.
[0029] S4. Install a pressure pump set at the first end of the blocking trench and a water pump set at the second end of the blocking trench.
[0030] S5. Use a soil aerator to perform primary aeration on high and low areas, and simultaneously put the Roots vacuum pump in the first working state.
[0031] S6. Detect soil cracking and dryness, and use soil aerators to carry out secondary aeration on high and low areas to kill pests and diseases in the early stage.
[0032] S7. Start the water pump set to supply fresh water to the first and second main pipelines, and stop supplying water after one infiltration cycle is completed.
[0033] S8. The Roots vacuum pump is turned on and enters the second working state, quickly absorbing the seepage water in high and low areas, and repeating the cycle to form multiple seepage cycles, so as to achieve efficient desalination and control of pests and diseases.
[0034] Preferably, the shallow tillage depth of the low-lying area is greater than that of the high-lying area.
[0035] Preferably, when the Roots vacuum pump is in its first working state, the compressed heat source drying gas is simultaneously pumped into the transport permeable pipe and the drip irrigation pipe through the auxiliary heating component;
[0036] When the Roots vacuum pump is in its second operating state, it uses a gas back-suction method to quickly back-suction the air and water medium in the transport permeable pipe and the drip irrigation pipe.
[0037] Preferably, when the Roots vacuum pump is in the second working state, the valve pipeline opens to discharge the seepage water in the high ground and the low ground after receiving the pressure value or water flow sensing signal.
[0038] In this invention, shallow tillage is used to break up the surface frozen soil, combined with heat source drying gas to dry the soil structure, and primary aeration is used to decompose the soil and enhance its permeability. At the same time, secondary aeration is used to initially kill pests and diseases. Winter irrigation with fresh water is used to deeply treat the salt and pests and diseases in the soil. Meanwhile, the absorption of gas to form negative pressure allows the infiltrated water to be quickly collected and returned, forming a rapid and efficient infiltration treatment cycle, reducing treatment costs, and achieving the goal of increasing production and efficiency. Attached image description:
[0039] Appendix Figure 1 This is a top view of the saline-alkali land winter irrigation and pest control equipment provided by the present invention;
[0040] Appendix Figure 2 This is a schematic diagram of the structure of the saline-alkali land winter irrigation and pest control equipment provided by the present invention;
[0041] Appendix Figure 3 This is a schematic diagram of the pressure pump unit provided by the present invention;
[0042] Appendix Figure 4 This is a schematic diagram of the water pump set provided by the present invention;
[0043] Appendix Figure 5 This is a schematic diagram of the structure of the first tee pipe provided by the present invention;
[0044] Appendix Figure 6 This is a schematic diagram of the structure of the drip irrigation tube provided by the present invention.
[0045] In the picture:
[0046] High ground-100, drip irrigation pipe-110, fine-mesh steel wire mesh-1101, elastic water-absorbing layer-1102, inner perforated pipe-1103, first main pipeline-111, first shallow tillage layer-120;
[0047] Low-lying area - 200, transport permeable pipe - 210, second main road - 211, second shallow cultivated layer - 220;
[0048] Blocking trench-300, pressure pump set-310, Roots vacuum pump-311, first tee pipe-312, pressure solenoid valve-3121, second tee pipe-313, water pump set-320, deep water well-321, multi-stage desalination filtration system-322, pressure tank-323, first switch valve-324, second switch valve-325;
[0049] Photovoltaic panels-400, support frame components-410;
[0050] Soil aerator-500. Detailed implementation method:
[0051] To make the objectives, technical solutions, and advantages of this disclosure clearer, the following detailed description is provided in conjunction with specific embodiments and the accompanying drawings.
[0052] It should be noted that, unless otherwise defined, the technical or scientific terms used in one or more embodiments of this specification should have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms "first," "second," and similar words used in one or more embodiments of this specification do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0053] To facilitate understanding of the saline-alkali land winter irrigation pest and disease control equipment and method provided in this application embodiment, its application scenario is first explained. Winter irrigation, also known as winter irrigation, is an agricultural management measure with benefits including mitigating frost damage, preventing drought, preventing wind erosion, loosening the soil, and reducing pest and disease damage. Specifically, winter irrigation helps remove pests and diseases from the soil in the following ways: 1. Reducing pest and disease damage (after winter irrigation, insect eggs on the soil surface are washed into the ice water and frozen to death, thereby reducing the number of pests and diseases). 2. Improving the soil environment (winter irrigation helps improve the soil environment by compacting the soil and breaking up clods, which is beneficial to improving soil fertility and creating a good soil environment for wheat growth, thereby reducing the occurrence of pests and diseases). 3. Drowning some overwintering pests (in dry years, winter irrigation can drown some overwintering pests, reducing the occurrence of pests and diseases in the following year). It is evident that winter irrigation has significant technical effects in both saline-alkali land management and pest and disease control. However, due to regional differences and the widespread undulating terrain, both saline-alkali land management and winter irrigation pest and disease control are quite difficult. The treatment of low-lying saline-alkali land is particularly challenging, while irrigation of higher-lying areas is hampered by water scarcity, making it difficult to balance water resources during pest and disease control. Especially in low-lying saline-alkali land, the high soil moisture content and compacted soil structure result in low permeability, making natural infiltration a lengthy process that significantly increases treatment costs and efficiency. Therefore, this application presents a saline-alkali land winter irrigation pest and disease control equipment and method that balances water usage, aerates and decomposes the soil to enhance permeability and control pests and diseases, shortens the treatment cycle, and meets pest and disease control standards.
[0054] refer to Figure 1 The embodiment of this application provides a winter irrigation and pest control device for saline-alkali land, which includes: a blocking ditch 300 opened between a high ground 100 and a low ground 200; the blocking ditch 300 is set at the junction of the high ground 100 and the low ground 200, and the high ground 100 and the low ground 200 are mechanically leveled in advance to ensure that they reach a flat state, which facilitates standardized and simplified construction operations in the later stage.
[0055] In this application, after the blocking ditch 300 is laid, slope protection panels are spliced and installed on the slope protection of the inner wall of the blocking ditch 300 so that the blocking ditch 300 can be used for a long time. At the same time, in this application, when controlling pests and diseases in winter, atomized drug treatment and winter irrigation are used for treatment, which not only meets the desalination treatment of low-lying saline-alkali land, but also ensures efficient control of pests and diseases, and provides a reliable guarantee for spring planting and pest and disease prevention.
[0056] This application proposes a reasonable layout for undulating terrain. Addressing the issue of existing photovoltaic panels 400 encroaching on arable land, and considering the local conditions, photovoltaic panels 400 that can be covered are installed on the blocking trenches 300 using support components 410. The electricity generated by the photovoltaic panels 400 can be directly applied to this technology or sold for economic benefits. By integrating high ground 100 and low-lying land 200, a larger planting area for improved arable land is reserved. Installing photovoltaic panels 400 in uncultivable areas greatly increases production and efficiency.
[0057] Combination Figure 2 As shown in the diagram, this application includes a permeable pipe 210 pre-buried along the width of the low-lying area 200 and a drip irrigation pipe 110 laid along the width of the high ground 100. The permeable pipe 210 enhances the permeability of the low-lying area 200, providing an efficient treatment method to address the prominent salinization problem in low-lying saline-alkali land, ensuring its irrigation and permeability. The drip irrigation pipe 110 balances the abundant water resources in the low-lying area 200, meeting the irrigation needs of the high ground 100. Winter irrigation is applied in the treatment of both the high ground 100 and the low-lying area 200, treating soil pests and diseases and meeting water resource utilization requirements. Figure 6 As shown, the drip irrigation pipe 110 and the transport permeable pipe 210 in this application are made of the same material and have the same pipe diameter. Because they are buried in different landforms, they are classified and named accordingly. Both the transport permeable pipe 210 and the drip irrigation pipe 110 include: an inner pipe 1103, an elastic absorbent layer 1102 (made of sponge or other materials) wrapped around the inner pipe 1103, and a dense wire mesh 1101 wrapped around the elastic absorbent layer 1102. This ensures that the transport permeable pipe 210 and the drip irrigation pipe 110 have permeability when buried deep in the soil, thus guaranteeing their service life.
[0058] Please refer to the above. Figure 1 and Figure 3 As shown, the first end of the blocking ditch 300 has a pressure pump group 310; the pressure pump group 310 adopts two working modes to switch between different scenarios; when treating saline-alkali land and eliminating pests and diseases, the pressure pump group 310 simultaneously or separately delivers heat source drying gas to the transport permeable pipe 210 and drip irrigation pipe 110 to ensure that the heat source drying gas diffuses in the high ground 100 or low ground 200, so as to dry the soil structure. At the same time, it cooperates with the primary aeration of the soil aerator 500 to ensure soil decomposition and aeration.
[0059] Furthermore, in this application, the high ground 100 is shallowly tilled to create a first shallow tillage layer 120, with a tillage depth of less than 10cm. This shallow tillage layer disrupts the surface soil layer in the high ground 100, facilitating the insertion of the air needles of the soil aerator 500. The low-lying area 200 is shallowly tilled to create a second shallow tillage layer 220, with a tillage depth of 15cm to 25cm. Considering the poor groundwater permeability in the low-lying area 200, the second shallow tillage layer 220 ensures deeper insertion of the air needles by the soil aerator 500, enhancing the permeability of the low-lying area 200.
[0060] When implementing another working method for a corresponding scenario, the pressure pump unit 310 uses an air intake method to quickly absorb the permeated water medium, further enhancing water permeability, meeting the requirements of eliminating pests and diseases while rapidly collecting water resources, shortening the cycle treatment time, and reducing treatment costs.
[0061] When the pressure pump group 310 is specifically configured, the pressure pump group 310 includes a Roots vacuum pump 311 in a first working state and a second working state; the Roots vacuum pump 311 is connected to the transport permeable pipe 210 and the drip irrigation pipe 110 through a valve pipeline; wherein, the Roots vacuum pump 311 achieves two different working states by adjusting two opposite rotation directions, which is prior art known to those skilled in the art and will not be described in detail here.
[0062] When the Roots vacuum pump 311 is in its first operating state, it pumps heat-source drying gas into the permeable pipe 210 and the drip irrigation pipe 110. Specifically, when the compressed gas delivered by the Roots vacuum pump 311 is heat-source drying gas, this application uses an external auxiliary heating element, which can be connected to a heat source steam pump, an electric heating element, a high-frequency coil, or other similar devices. Specifically, when using an electric heating element or a high-frequency coil, a heat-resistant tube made of copper or iron is used as the carrier. When the Roots vacuum pump 311 pumps the compressed gas into the drip irrigation pipe 110 or the permeable pipe 210, it absorbs the gas passing through the heated carrier, compresses it, and then discharges it, thus achieving the delivery of heat-source drying gas. Of course, in other embodiments of this application, direct delivery of compressed gas without heating can also achieve soil aeration.
[0063] When the Roots vacuum pump 311 is in its second operating state, it draws gas and water into the transport permeable pipe 210 and the drip irrigation pipe 110, and discharges the water into the blocking trench 300 through the valve pipeline. Specifically, during the pumping and suction switching, multiple transport permeable pipes 210 are pre-buried along the width of the low-lying area 200, and multiple drip irrigation pipes 110 are pre-buried along the width of the high-lying area 100. The multiple drip irrigation pipes 110 are connected to a first main pipeline 111 located inside the blocking trench 300; the multiple transport permeable pipes 210 are connected to a second main pipeline 211 located inside the blocking trench 300. Therefore, during the pumping and suction processes, the Roots vacuum pump 311 undergoes dispersion treatment through the first main pipeline 111 and the second main pipeline 211, ensuring high diffusion uniformity.
[0064] like Figure 5 As shown, the valve pipeline includes a first tee pipe 312 and a second tee pipe 313; wherein, the Roots vacuum pump 311 is connected to the first main pipeline 111 through the first tee pipe 312; the Roots vacuum pump 311 is connected to the second main pipeline 211 through the second tee pipe 313; the free ports of the first tee pipe 312 and the second tee pipe 313 are both equipped with pressure solenoid valves 3121 facing the blocking trench 300. The pressure solenoid valve 3121 is used to detect the pressure value and water flow sensing signal in the first main pipeline 111 and the second main pipeline 211 and then open accordingly. The resulting negative pressure state facilitates the negative pressure collection of seepage water in the high ground 100 and the low ground 200, shortening the cycle of treatment.
[0065] Continue reading Figure 1 and Figure 4 The pump assembly 320 includes: a deep well 321 and a pressure tank 323 connected to the pump in the deep well 321; the pressure tank 323 is connected to a permeable pipe 210 and a drip irrigation pipe 110 via a set of switching valves; a multi-stage desalination filtration system 322 is installed inside the blocking ditch 300 and at the front end of the deep well 321. The switching valve assembly includes a first switching valve 324 and a second switching valve 325 connected to the bottom of the pressure tank 323; wherein, the first switching valve 324 is connected to the first main pipeline 111, and the second switching valve 325 is connected to the second main pipeline 211.
[0066] As can be seen from the above description, a deep well 321 is connected to the lowest end of the blocking ditch 300 along the drainage flow direction. A multi-stage desalination filtration system 322 is connected above the wellhead of the deep well 321. Specifically, this multi-stage desalination filtration system 322 is used to purify water containing salt. Its filter media layer can be selectively installed according to the salt and alkali content. Salt and alkali purification is a commonly used technique in the prior art, and the use of electrodialysis, reverse osmosis, etc., is not excluded, but will not be elaborated further here. The multi-stage desalination filtration system 322 is used to purify the water medium so that the water returning to the deep well 321 meets the freshwater requirements. The depth of the deep well 321 in this application is not less than 180m, and the submersion depth of the pump unit must be at least 15m below the underground freshwater layer, thereby ensuring that the freshwater pumped out by the pump unit meets the requirements for winter irrigation.
[0067] The pump set of the deep well 321 is connected to a pressure tank 323. The pressure tank 323 is connected to the first main pipeline 111 through the first switch valve 324, and then delivers fresh water to multiple drip irrigation pipes 110. The pressure tank 323 is connected to the second main pipeline 211 through the second switch valve 325, and then delivers fresh water to multiple transport permeable pipes 210. By opening different switch valves, the treatment and irrigation of high ground 100 and low-lying area 200 can be controlled, and the application can be synchronized to reduce costs.
[0068] Meanwhile, the winter irrigation and pest control equipment for saline-alkali land also includes a soil aerator 500 for secondary aeration of high ground (100%) and low-lying areas (200%). The soil aerator 500 uses compressed gas for primary aeration and insecticidal gas for secondary aeration. The soil aerator 500 aerates the soil through needles inserted into it, and adds insecticides during secondary aeration to effectively kill pests and diseases in the soil. Combined with winter irrigation, this ensures comprehensive pest and disease control.
[0069] In this invention, the soil structure is dried by conveying heat-generating drying gas, and the soil is loosened by primary aeration. During the secondary aeration process, pests and diseases in the soil are initially controlled. Fresh water is used to neutralize the salt in the soil for infiltration, which effectively improves the efficiency of saline-alkali land management while achieving pest and disease control during winter irrigation. At the same time, the flow-increasing effect of absorbing gas and water media is used to make the infiltrated water quickly form a cycle, shortening the treatment cycle, meeting the pest and disease control standards, reducing treatment costs, and achieving the goal of increasing production and efficiency.
[0070] In addition, this application also provides a method for controlling pests and diseases during winter irrigation in saline-alkali land, including the following steps:
[0071] S1. Shallow tillage to level high and low areas; the shallow tillage depth in low areas is greater than that in high areas.
[0072] S2. Dig blocking trenches on both the high and low slopes and lay slope protection boards inside the blocking trenches to ensure the long-term use of the blocking trenches.
[0073] S3. Pre-bury permeable pipes in low-lying areas and drip irrigation pipes in high-lying areas, and connect them to the first and second main pipelines accordingly; lay through pipelines to achieve long-term recycling.
[0074] S4. Install a pressure pump set at the first end of the barrier trench and a water pump set at the second end of the barrier trench; install reliable pump sets to meet different supply requirements, while photovoltaic panels provide power.
[0075] S5. Use a soil aerator to perform primary aeration on high and low areas, and simultaneously put the Roots vacuum pump in the first working state; dry and decompose the soil structure to ensure its permeability.
[0076] S6. Detect soil fragmentation and dryness, and use soil aerators to perform secondary aeration on high and low areas to initially kill pests and diseases; the effect of killing pests and diseases in the soil is significant.
[0077] S7. Start the water pump set to supply fresh water to the first and second main pipelines, and stop supplying water after one infiltration cycle is completed; this meets the treatment requirements of low-lying saline-alkali land and balances the water demand of high-lying areas.
[0078] S8. The Roots vacuum pump is turned on and enters the second working state, quickly absorbing the seepage water in high and low areas, and repeating the cycle to form multiple seepage cycles, so as to achieve efficient desalination and control of pests and diseases.
[0079] Simultaneously, when the Roots vacuum pump is in its first operating state, the compressed heat source dry gas is synchronously pumped into the transport permeable pipe and drip irrigation pipe through the auxiliary heating component. When the Roots vacuum pump is in its second operating state, the air and water medium in the transport permeable pipe and drip irrigation pipe are rapidly drawn back using a gas back suction method. When the Roots vacuum pump is in its second operating state, the valve pipeline opens to discharge permeable water from high and low-lying areas after receiving pressure values or water flow sensing signals.
[0080] In this invention, shallow tillage is used to break up the surface frozen soil, combined with heat source drying gas to dry the soil structure, and primary aeration is used to decompose the soil and enhance its permeability. At the same time, secondary aeration is used to initially kill pests and diseases. Winter irrigation with fresh water is used to deeply treat the salt and pests and diseases in the soil. Meanwhile, the absorption of gas to form negative pressure allows the infiltrated water to be quickly collected and returned, forming a rapid and efficient infiltration treatment cycle, reducing treatment costs, and achieving the goal of increasing production and efficiency.
[0081] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of this disclosure (including the claims) is limited to these examples; within the framework of this disclosure, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of one or more embodiments of this specification as described above, which are not provided in detail for the sake of brevity.
[0082] Additionally, to simplify the description and discussion, and to avoid obscuring one or more embodiments of this specification, well-known power / ground connections to integrated circuit (IC) chips and other components may or may not be shown in the provided drawings. Furthermore, the apparatus may be illustrated in block diagram form to avoid obscuring one or more embodiments of this specification, and this also takes into account the fact that the details of implementation of these block diagram apparatuses are highly dependent on the platform on which one or more embodiments of this specification will be implemented (i.e., these details should be fully understood by those skilled in the art). While specific details (e.g., circuits) have been set forth to describe exemplary embodiments of this disclosure, it will be apparent to those skilled in the art that one or more embodiments of this specification may be implemented without these specific details or with variations thereof. Therefore, these descriptions should be considered illustrative rather than restrictive.
[0083] Although this disclosure has been described in conjunction with specific embodiments thereof, many substitutions, modifications and variations of these embodiments will be apparent to those skilled in the art from the foregoing description.
[0084] One or more embodiments of this specification are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of one or more embodiments of this specification should be included within the scope of protection of this disclosure.
Claims
1. A winter irrigation and pest control device for saline-alkali land, comprising a blocking ditch dug between high ground and low ground, a permeable pipe pre-buried along the width of the low ground, a drip irrigation pipe laid along the width of the high ground, a pressure pump assembly assembled at a first end of the blocking ditch, and a water pump assembly assembled at a second end of the blocking ditch; characterized in that, The pressure pump assembly includes a Roots vacuum pump in a first operating state and a second operating state; the Roots vacuum pump is connected to the transport permeable pipe and the drip irrigation pipe via valve piping; wherein... When the Roots vacuum pump is in its first working state, it pumps heat source drying gas into the interior of the transport permeable pipe and the drip irrigation pipe. When the Roots vacuum pump is in its second working state, it draws gas and water into the interior of the transport permeable pipe and the drip irrigation pipe, and discharges the water into the interior of the blocking trench through the valve pipeline. The water pump set includes: a deep water well and a pressure tank connected to the deep water well pump; the pressure tank is connected to the transport permeable pipe and the drip irrigation pipe respectively through a set of switching valves. The saline-alkali land winter irrigation pest and disease control equipment also includes a soil aerator for secondary aeration of the highlands and lowlands; The soil aerator uses compressed gas for primary aeration during the first stage of aeration. The soil aerator uses insecticidal gas during the secondary aeration stage. A multi-stage desalination filtration system is installed inside the blocking trench and at the front end of the deep water well.
2. The saline-alkali soil winter irrigation pest management device according to claim 1, characterized in that, A photovoltaic panel is connected above the blocking trench via a support assembly.
3. The saline-alkali land winter irrigation and pest control equipment as described in claim 1, characterized in that, Multiple permeable water pipes are pre-buried along the width of the low-lying area, and multiple drip irrigation pipes are pre-buried along the width of the high-lying area. The multiple drip irrigation pipes are connected to a first main pipeline located inside the blocking trench; The multiple permeable pipes are connected to a second main pipeline located inside the blocking trench.
4. The saline-alkali land winter irrigation and pest control equipment as described in claim 3, characterized in that, The valve pipeline includes a first tee pipe and a second tee pipe; among which, The Roots vacuum pump is connected to the first main pipeline via a first tee pipe; The Roots vacuum pump is connected to the second main pipeline via a second tee pipe; Both the first tee and the second tee are equipped with pressure solenoid valves facing the blocking trench at their free ports.
5. The saline-alkali land winter irrigation and pest control equipment as described in claim 4, characterized in that, The valve assembly includes a first valve and a second valve connected to the bottom of the pressure tank; wherein... The first switching valve is connected to the first main pipeline, and the second switching valve is connected to the second main pipeline.
6. A method for controlling pests and diseases in saline-alkali land during winter irrigation, applied to the pest and disease control equipment for winter irrigation in saline-alkali land as described in claim 1, characterized in that, Includes the following steps: Step 1: Shallowly cultivate and level the high and low-lying areas; Step 2: Dig blocking trenches on the slopes adjacent to both high and low ground, and lay slope protection boards inside the blocking trenches; Step 3: Pre-bury permeable pipes in low-lying areas and drip irrigation pipes in high-lying areas, and connect them to the first and second main pipelines accordingly. Step 4: Install a pressure pump set at the first end of the barrier trench and a water pump set at the second end of the barrier trench; Step 5: Use a soil aerator to perform primary aeration on the high ground and low-lying areas, and simultaneously put the Roots vacuum pump into its first working state. Step 6: Test the soil density and dryness, and use a soil aerator to perform secondary aeration on the high ground and low ground to kill pests and diseases in the early stage. Step 7: Start the water pump set to supply fresh water to the first and second main pipelines, and stop supplying water after one infiltration cycle is completed; Step 8: Turn on the Roots vacuum pump to its second working state, quickly absorb the seepage water in the high and low areas, and repeat the cycle to form multiple seepage cycles, so as to achieve efficient desalination and control of pests and diseases.
7. The method for controlling pests and diseases in saline-alkali land during winter irrigation as described in claim 6, characterized in that, The shallow tillage depth in the low-lying areas is greater than that in the high-lying areas.
8. The method for controlling pests and diseases in saline-alkali land during winter irrigation as described in claim 6, characterized in that, When the Roots vacuum pump is in its first working state, the compressed heat source drying gas is synchronously pumped into the transport permeable pipe and the drip irrigation pipe through the auxiliary heating component; When the Roots vacuum pump is in its second operating state, it uses a gas back-suction method to quickly back-suction the air and water medium in the transport permeable pipe and the drip irrigation pipe.
9. The method for controlling pests and diseases in saline-alkali land during winter irrigation as described in claim 6, characterized in that, When the Roots vacuum pump is in its second operating state, the valve pipeline opens to discharge the seepage water in the high ground and the low ground after receiving a pressure value or a water flow sensing signal.