Saline-alkali soil winter irrigation pest and disease control equipment and control method

Abstract

The invention discloses saline-alkali soil winter irrigation pest control equipment and a control method. The saline-alkali land winter irrigation pest and disease control equipment comprises a blocking ditch formed between a high land and a low-lying land, a migration permeable pipe pre-buried and laid in the width direction of the low-lying land, a drip irrigation pipe laid in the width direction of the high land, 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. According to the application, through the arrangement of the pressure pump set, the soil permeability of highland and low-lying land is improved, the winter irrigation treatment period is shortened, water source utilization is balanced, and efficient pest and disease control is achieved. Besides, the invention further provides a saline-alkali soil winter irrigation pest and disease control method, by means of the control method, multiple forms of loosening soil to improve water permeability, controlling pest and disease damage through aeration and killing pest and disease damage through winter irrigation can be effectively achieved, the control period is greatly shortened, the control cost is reduced, and the purposes of increasing yield and increasing efficiency are achieved.

Description

Technical field:

[0001] The invention relates to the technical field of saline-alkali land treatment and pest control, and in particular to saline-alkali land winter irrigation pest control equipment and a treatment method. Background technology:

[0002] Most of Ningxia is saline-alkali land and cannot be cultivated directly (heavy metals). Large amounts of water are needed for irrigation to dissolve the salt into the soil at a depth of 50 to 70 cm before cultivation can begin. This is often called winter irrigation. One acre of land requires 200 cubic meters of water. Ningxia is short of water resources, and the central and northern parts rely on water from the Yellow River. A large amount of water is needed for winter irrigation every year. With the decrease in the Yellow River's runoff and the increase in population, this contradiction has become increasingly prominent.

[0003] Winter irrigation, also known as winter irrigation, is an agricultural management measure whose benefits include reducing frost damage, preventing drought, eliminating wind erosion, loosening the soil, and reducing pests and diseases. Specifically, winter irrigation helps remove pests and diseases in the soil in the following ways: 1. Reducing pests and diseases (after winter irrigation, the eggs on the surface of the soil are washed into ice water and frozen to death, thereby reducing the number of pests and diseases). 2. Improving the soil environment (winter irrigation helps to improve the soil environment, by compacting the soil and crushing the clod, which is conducive to improving soil fertility, and also 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 and reduce the occurrence of pests and diseases in the next year). It can be seen that winter irrigation has significant technical effects in the treatment of saline-alkali land and pests and diseases. However, due to regional differences, the wide range of undulating landforms makes saline-alkali land management and winter irrigation pest and disease control more difficult. It is difficult to manage low-lying saline-alkali land, and there is a shortage of water resources needed for irrigation of high-lying plots, resulting in an unbalanced water resource management during the disease and insect pest control process. Especially in the process of managing low-lying saline-alkali land, the soil contains a high amount of water, the soil is tightly condensed, and the infiltration effect is low. The management cycle relying solely on natural infiltration is long, which greatly increases the management cost and efficiency. Summary of the invention:

[0004] In view of this, it is necessary to design a saline-alkali land winter irrigation pest control equipment and method that can overcome the above problems, balance the use of water resources, aerate and decompose the soil to enhance permeability and control pests, shorten the control cycle, and meet the pest control standards.

[0005] In a first aspect, the present application provides a saline-alkali land winter irrigation pest control device comprising: a blocking ditch opened between a highland and a low-lying land, a transport permeable pipe pre-buried and laid along the width direction of the low-lying land, a drip irrigation pipe laid along the width direction of the highland, and a pressure pump group installed at a first end of the blocking ditch and a water pump group installed at a second end of the blocking ditch;

[0006] The pressure pump group includes a Roots vacuum pump in a first working state and a second working state; the Roots vacuum pump is connected to the transport permeable pipe and the drip irrigation pipe through a valve pipeline; wherein,

[0007] When the Roots vacuum pump is in the first working state, the Roots vacuum pump 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 the second working state, the Roots vacuum pump absorbs gas and water medium into the transport water-permeable pipe and the drip irrigation pipe, and discharges the water medium into the blocking ditch through the valve pipeline;

[0009] The water pump group includes: a deep water well, a pressure tank connected to the deep water well pump; the pressure tank is respectively connected to the transport permeable pipe and the drip irrigation pipe through a switch valve group;

[0010] The saline-alkali land winter irrigation pest control equipment also includes a soil aerator for secondary aeration of the highland and the low-lying land;

[0011] The soil aerator uses compressed gas for aeration during the first-stage aeration;

[0012] The soil aerator aerates insecticidal gas during the second-stage aeration.

[0013] Preferably, a photovoltaic panel is connected above the blocking groove via a bracket assembly.

[0014] Preferably, the low-lying land is pre-buried with a plurality of the transport and permeable pipes along the width direction, and the high land is pre-buried with a plurality of the drip irrigation pipes along the width direction;

[0015] A plurality of the drip irrigation pipes are connected to a first main pipe located inside the blocking ditch;

[0016] A plurality of the transport and permeable pipes are connected to a second main pipe located inside the blocking ditch.

[0017] Preferably, the valve pipeline includes a first three-way pipe and a second three-way pipe; wherein,

[0018] The Roots vacuum pump is connected to the first main pipe through a first three-way pipe;

[0019] The Roots vacuum pump is connected to the second main pipe through a second three-way pipe;

[0020] The free ports of the first tee pipe and the second tee pipe are both equipped with pressure solenoid valves facing the blocking groove.

[0021] Preferably, a multi-stage desalination filtration system is installed inside the blocking ditch and at the front end of the deep water well.

[0022] Preferably, the switch valve group includes a first switch valve and a second switch valve connected to the bottom of the pressure tank; wherein,

[0023] The first switch valve is connected to the first main line, and the second switch valve is connected to the second main line.

[0024] In the present invention, the soil structure is dried by delivering heat source drying gas, and the soil is loosened by the first-stage aeration. During the second-stage aeration process, the pests and diseases in the soil are preliminarily killed. Fresh water and salt in the soil are used for infiltration, and the efficient management of saline-alkali land is effectively improved while achieving winter irrigation pest management. At the same time, the flow-increasing effect of absorbing gas and water medium is used to make the infiltrated water quickly form a cycle, shorten the management cycle, meet the pest and disease management standards, reduce the management cost, and achieve the purpose of increasing production and increasing efficiency.

[0025] In a second aspect, a method for controlling pests and diseases in saline-alkali land by winter irrigation comprises the following steps:

[0026] S1. Shallow tillage to level high ground and low-lying land;

[0027] S2. Blocking trenches are dug on the slopes adjacent to the highlands and low-lying areas, and slope protection plates are laid inside the blocking trenches;

[0028] S3. Pre-bury the transport permeable pipe in the low-lying land, pre-bury the drip irrigation pipe in the high land, and connect the first main pipe and the second main pipe accordingly;

[0029] S4, installing a pressure pump group at the first end of the blocking ditch, and installing a water pump group at the second end of the blocking ditch;

[0030] S5. Use a soil aerator to perform primary aeration on high ground and low-lying land, and simultaneously put the Roots vacuum pump in the first working state;

[0031] S6. Detect soil fragmentation and dryness, and use soil aerators to perform secondary aeration on highlands and low-lying areas to kill pests and diseases at the primary level;

[0032] S7, start the water pump group to supply fresh water to the first main pipeline and the second main pipeline, and stop supplying water after forming an infiltration cycle;

[0033] S8. Turn on the Roots vacuum pump in the second working state to quickly absorb the infiltration water in highlands and low-lying areas, and reciprocate to form multiple infiltration cycles to achieve the purpose of efficient desalination and pest control.

[0034] Preferably, the shallow plowing depth of the low-lying land is greater than the shallow plowing depth of the high land.

[0035] Preferably, when the Roots vacuum pump is in the first working state, the compressed heat source dry gas is synchronously pumped into the transport permeable pipe and the drip irrigation pipe through the auxiliary heating assembly;

[0036] When the Roots vacuum pump is in the second working state, the air and water medium in the transport water-permeable pipe and the drip irrigation pipe are quickly sucked back by gas back suction.

[0037] Preferably, when the Roots vacuum pump is in the second working state, the valve pipeline is opened to discharge the infiltrated water in the highland and the lowland after receiving the pressure value or the water flow sensing signal.

[0038] In the present invention, shallow tillage is used to destroy the frozen soil on the surface, the soil structure is dried in combination with heat source drying gas, and the first-level aeration is used to decompose the soil and enhance water permeability, while the second-level aeration is used to perform primary killing of pests and diseases; winter irrigation with fresh water is used to deeply treat the salt content and pests and diseases in the soil, and at the same time, the infiltrated water is quickly collected and refluxed by absorbing gas to form a negative pressure, thereby forming a fast and efficient infiltration control cycle, reducing the control cost, and achieving the purpose of increasing production and efficiency. Description of the drawings:

[0039] Attached Figure 1 It is a top view of the saline-alkali land winter irrigation pest control equipment provided by the present invention;

[0040] Attached Figure 2 It is a structural schematic diagram of the saline-alkali land winter irrigation pest control equipment provided by the present invention;

[0041] Attached Figure 3 It is a structural schematic diagram of the pressure pump group provided by the present invention;

[0042] Attached Figure 4 It is a structural schematic diagram of the water pump group provided by the present invention;

[0043] Attached Figure 5 is a schematic structural diagram of a first three-way pipe provided by the present invention;

[0044] Attached Figure 6 It is a structural schematic diagram of the first drip irrigation pipe provided by the present invention.

[0045] In the figure:

[0046] Highland-100, drip irrigation pipe-110, dense mesh wire mesh-1101, elastic water absorption layer-1102, inner hole pipe-1103, first main pipeline-111, first shallow tillage layer-120;

[0047] Low-lying land-200, transport permeable pipe-210, second main pipeline-211, second shallow tillage layer-220;

[0048] Blocking ditch 300, pressure pump group 310, Roots vacuum pump 311, first three-way pipe 312, pressure solenoid valve 3121, second three-way pipe 313, water pump group 320, deep water well 321, multi-stage desalination filtration system 322, pressure tank 323, first switch valve 324, second switch valve 325;

[0049] Photovoltaic panel-400, bracket assembly-410;

[0050] Soil Aerator-500. Specific implementation method:

[0051] In order to make the objectives, technical solutions and advantages of the present disclosure more clearly understood, the present disclosure is further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.

[0052] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in one or more embodiments of this specification should be understood by people with ordinary skills in the field to which this disclosure belongs. The "first", "second" and similar words used in one or more embodiments of this specification do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used 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 control equipment and control method provided by the embodiment of the present application, first explain its application scenario. Winter irrigation, also known as winter irrigation, is an agricultural management measure, and its benefits include reducing frost damage, preventing drought, eliminating wind erosion, loosening the soil, and reducing pest damage. Specifically, winter irrigation helps remove pests and diseases in the soil in the following ways: 1. Reducing pest damage (after winter irrigation, the eggs on the surface of the soil are washed into ice water and frozen to death, thereby reducing the number of pests and diseases). 2. Improving the soil environment (winter irrigation helps to improve the soil environment, by compacting the soil and crushing the clod, it is beneficial to improve soil fertility, and also creates a good soil environment for the growth of wheat, thereby reducing the occurrence of pests and diseases). 3. Drowning some overwintering pests (in dry years, winter irrigation can drown some overwintering pests and reduce the occurrence of pests and diseases in the next year). It can be seen that winter irrigation has significant technical effects in the treatment of saline-alkali land and pests and diseases. However, due to regional differences, the wide range of undulating landforms makes saline-alkali land management and winter irrigation pest and disease management more difficult. It is difficult to manage low-lying saline-alkali land, and the water resources needed for irrigation of high-lying plots are scarce, which makes it impossible to balance water resource management during pest control; especially in the process of managing low-lying saline-alkali land, the soil contains a high amount of water, the soil is tightly condensed, and the infiltration effect is low. Relying solely on natural infiltration for a long management cycle, greatly increasing the management cost and management efficiency. In view of this, the saline-alkali land winter irrigation pest control equipment and management method of this application balances the use of water resources, aerates and decomposes the soil to enhance permeability and control pests and diseases, shortens the management cycle, and meets the pest and disease control standards.

[0054] refer to Figure 1 A saline-alkali land winter irrigation pest control device provided in an embodiment of the present application includes: a blocking ditch 300 opened between a highland 100 and a low-lying land 200; the blocking ditch 300 is arranged at the connecting section of the highland 100 and the low-lying land 200, and the highland 100 and the low-lying land 200 are mechanically leveled in advance to ensure that they are in a level state, which is convenient for later standardized and simplified construction operations.

[0055] In the present application, after the blocking ditch 300 is laid, a slope protection plate is 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 the present application, in winter, pests and diseases are controlled by atomization drug treatment and winter irrigation, which not only meets the desalination control of low-lying saline-alkali land, but also ensures efficient control of pests and diseases, and provides reliable protection for spring farming and pest and disease prevention.

[0056] In this application, a reasonable layout is made according to the undulating landforms. At the same time, in view of the large-scale occurrence of the existing photovoltaic panels 400 occupying arable land, combined with the actual situation in the local area, a covered photovoltaic panel 400 is installed on the blocking ditch 300 through a bracket assembly 410. The electric energy generated by the photovoltaic panel 400 is directly used in this technology or sold in exchange for certain economic benefits. By integrating the highlands 100 and the low-lying land 200, a larger planting area of ​​improved arable land is reserved, and the photovoltaic panels 400 are installed in the non-plantable areas, which greatly achieves the purpose of increasing production and efficiency.

[0057] Combination Figure 2 As shown in , the present application includes a transport permeable pipe 210 pre-buried and laid along the width direction of the low-lying land 200, and a drip irrigation pipe 110 laid along the width direction of the highland 100; the transport permeable pipe 210 is used to enhance the water permeability of the low-lying land 200, and to provide an efficient treatment method for the prominent problem of salinization of low-lying saline-alkali land, thereby ensuring its irrigation and water permeability. The drip irrigation pipe 110 is used to balance the advantage of abundant water resources in the low-lying land 200 and meet the irrigation needs of the highland 100. Winter irrigation is used in the treatment of the highland 100 and the low-lying land 200, and can treat pests and diseases in the soil to meet the application of water resources; combined with Figure 6 As shown in the figure, the drip irrigation pipe 110 and the transport and permeable pipe 210 in the present application are made of the same material and have the same diameter. Because they are buried in different landforms, they are classified and named; the transport and permeable pipe 210 and the drip irrigation pipe 110 both include: an inner hole pipe 1103, an elastic water-absorbing layer 1102 (sponge or other materials) wrapped on the outside of the inner hole pipe 1103, and a dense-pore steel wire mesh 1101 wrapped around the elastic water-absorbing layer 1102, so that the transport and permeable pipe 210 and the drip irrigation pipe 110 are also permeable when buried deep in the soil, thereby ensuring their service life.

[0058] For reference Figure 1 and Figure 3 As shown in the figure, the pressure pump group 310 at the first end of the blocking ditch 300; the pressure pump group 310 adopts two working modes to switch according to different scenarios; when initially treating saline-alkali land and eliminating pests and diseases, the pressure pump group 310 synchronously or individually transports heat source drying gas to the transport permeable pipe 210 and the drip irrigation pipe 110 to ensure that the heat source drying gas is diffused in the highland 100 or the low-lying land 200 to dry the soil structure, and at the same time cooperates with the primary aeration of the soil aerator 500 to ensure soil decomposition and ventilation.

[0059] In addition, the highland 100 in the present application is plowed to form a first shallow plowing layer 120, the shallow plowing depth of the first shallow plowing layer 120 is less than 10 cm, and the shallow plowing layer destroys the soil surface layer in the highland 100, which is convenient for the air needle of the soil aerator 500 to be inserted. The low-lying land 200 is plowed to form a second shallow plowing layer 220, the shallow plowing depth of the second shallow plowing layer 220 is 15 cm to 25 cm, and combined with the disadvantage of poor groundwater infiltration effect in the low-lying land 200, the second shallow plowing layer 220 can ensure that the soil aerator 500 is inserted deeper into the air needle, thereby enhancing the infiltration effect of the low-lying land 200.

[0060] When implementing another working mode for the corresponding scene conversion, the pressure pump group 310 adopts the suction method to quickly absorb the infiltrated water medium, further enhancing the water permeability, meeting the needs of eliminating pests and diseases while quickly collecting water resources, shortening the cycle management time, and reducing management costs.

[0061] When the pressure pump group 310 is specifically set, 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 realizes two different working states by adjusting two opposite rotation directions, which is a prior art known to those skilled in the art and will not be elaborated on herein.

[0062] When the Roots vacuum pump 311 is in the first working state, the Roots vacuum pump 311 pumps the heat source dry gas into the transport permeable pipe 210 and the drip irrigation pipe 110; when the compressed gas transported by the Roots vacuum pump 311 is the heat source dry gas, an external auxiliary heating element is used in this application, and the auxiliary heating element is connected to the heat source steam pump, electric heating plate, high-frequency coil and other methods; it needs to be specifically explained that when the electric heating plate or high-frequency coil is used, a heat-resistant pipe body such as copper or iron is used as a carrier. When the Roots vacuum pump 311 pumps the compressed gas into the drip irrigation pipe 110 or the transport permeable pipe 210, the gas passing through the heating carrier is absorbed and compressed and then discharged, so that the heat source dry gas is transported. Of course, in other embodiments of the present application, the compressed gas is directly transported without heating, and the permeability treatment of the soil structure can also be achieved.

[0063] When the Roots vacuum pump 311 is in the second working state, the Roots vacuum pump 311 absorbs gas and water medium from the inside of the transport water-permeable pipe 210 and the drip irrigation pipe 110, and discharges the water medium to the inside of the blocking ditch 300 through the valve pipeline; when the pumping and suctioning are realized, the low-lying land 200 is pre-buried with multiple transport water-permeable pipes 210 along the width direction, and the high land 100 is pre-buried with multiple drip irrigation pipes 110 along the width direction; the multiple drip irrigation pipes 110 are connected to the first main pipe 111 located inside the blocking ditch 300; the multiple transport water-permeable pipes 210 are connected to the second main pipe 211 located inside the blocking ditch 300. It can be seen that the Roots vacuum pump 311 is dispersedly processed through the first main pipe 111 and the second main pipe 211 during the pumping and suctioning process to ensure high diffusion uniformity.

[0064] like Figure 5 As shown in the figure, the valve pipeline includes a first three-way pipe 312 and a second three-way pipe 313; wherein, the Roots vacuum pump 311 is connected to the first main pipe 111 through the first three-way pipe 312; the Roots vacuum pump 311 is connected to the second main pipe 211 through the second three-way pipe 313; the free ports of the first three-way pipe 312 and the second three-way pipe 313 are both equipped with a pressure solenoid valve 3121 facing the blocking groove 300. The pressure solenoid valve 3121 is used to detect the pressure value and water flow sensing signal in the first main pipe 111 and the second main pipe 211 and then open accordingly. The negative pressure state formed facilitates the negative pressure collection of the infiltrated water in the highland 100 and the low-lying land 200, shortening the circulation treatment period.

[0065] Continue reading Figure 1 and Figure 4 The water pump group 320 includes: a deep water well 321, a pressure tank 323 connected to the deep water well 321 pump; the pressure tank 323 is respectively connected to the transport permeable pipe 210 and the drip irrigation pipe 110 through the switch valve group; the inside of the blocking ditch 300 and the front end of the deep water well 321 are equipped with a multi-stage desalination filtration system 322. The switch valve group includes a first switch valve 324 and a second switch valve 325 connected to the bottom of the pressure tank 323; wherein the first switch valve 324 is connected to the first main line 111, and the second switch valve 325 is connected to the second main line 211.

[0066] It can be seen from the above description that the lowest end of the blocking ditch 300 along the drainage flow direction is connected to a deep water well 321, and a multi-stage desalination filtration system 322 is connected above the wellhead of the deep water well 321; it needs to be specifically explained that the multi-stage desalination filtration system 322 is used to purify the water medium containing salt, and its filter medium layer can be selectively installed according to the salt and alkali content. Salt and alkali purification treatment is a commonly used technical means in the prior art, and the use of electrodialysis, reverse osmosis, etc. is not excluded, which will not be described in detail here. The multi-stage desalination filtration system 322 is used to purify the water medium so that the water medium flowing back to the deep water well 321 meets the fresh water demand. The depth of the deep water well 321 in this application is not less than 180m, and the diving depth of the pump group must be at least 15m lower than the underground freshwater layer, so as to ensure that the fresh water pumped out by the pump group meets the requirements of winter irrigation.

[0067] The pump group of the deep water well 321 is connected to a pressure tank 323, and the pressure tank 323 is connected to the first main pipeline 111 through the first switch valve 324 and then transports 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 transports fresh water to multiple transport permeable pipes 210. By opening different switch valves, the management and irrigation of the highland 100 and the low-lying land 200 are controlled, and the application is synchronized to reduce costs.

[0068] Meanwhile, the saline-alkali land winter irrigation pest control equipment also includes a soil aerator 500 for secondary aeration of highland 100 and low-lying land 200; the soil aerator 500 aerates compressed gas during primary aeration; and aerates insecticidal gas during secondary aeration. The soil aerator 500 inserts an air needle into the soil to achieve aeration, and adds pesticides to aerate during secondary aeration to kill pests and diseases in the soil, and cooperates with winter irrigation management to ensure comprehensive killing of pests and diseases.

[0069] In the present invention, the soil structure is dried by delivering heat source drying gas, and the soil is loosened by the first-stage aeration. During the second-stage aeration process, the pests and diseases in the soil are preliminarily killed. Fresh water and salt in the soil are used for infiltration, and the efficient management of saline-alkali land is effectively improved while achieving winter irrigation pest management. At the same time, the flow-increasing effect of absorbing gas and water medium is used to make the infiltrated water quickly form a cycle, shorten the management cycle, meet the pest and disease management standards, reduce the management cost, and achieve the purpose of increasing production and increasing efficiency.

[0070] In addition, the present application also provides a method for controlling pests and diseases in saline-alkali land by irrigation in winter, comprising the following steps:

[0071] S1. Shallow plowing to level high ground and low-lying land; the shallow plowing depth in low-lying land is greater than that in high ground.

[0072] S2. Blocking ditches are dug on the slopes adjacent to highlands and low-lying areas, and slope guard plates are laid inside the blocking ditches to achieve long-term use of the blocking ditches.

[0073] S3. Pre-bury the transport and permeable pipes in the low-lying areas, and pre-bury the drip irrigation pipes in the highlands, and connect the first main pipe and the second main pipe accordingly; lay the through pipes to achieve long-term circulation.

[0074] S4. Install a pressure pump group at the first end of the blocking ditch and install a water pump group at the second end of the blocking ditch; install reliable pump groups to achieve different supply requirements, and at the same time, photovoltaic panels provide electricity supply.

[0075] S5. Use soil aerator to perform primary aeration on highlands and low-lying areas, and simultaneously place the Roots vacuum pump in the first working state; dry and decompose the soil structure to ensure its permeability.

[0076] S6. Detect the degree of soil fragmentation and dryness, use soil aerators to perform secondary aeration on highlands and low-lying areas to kill pests and diseases at the primary level; the effect of killing pests and diseases in the soil is significant.

[0077] S7. Start the water pump group to supply fresh water to the first main pipeline and the second main pipeline, and stop supplying water after forming an infiltration cycle; meet the requirements for the treatment of low-lying saline-alkali land and balance the water demand of highlands.

[0078] S8. Turn on the Roots vacuum pump in the second working state to quickly absorb the infiltration water in highlands and low-lying areas, and reciprocate to form multiple infiltration cycles to achieve the purpose of efficient desalination and pest control.

[0079] At the same time, when the Roots vacuum pump is in the first working state, the compressed heat source dry gas is synchronously pumped into the transport water-permeable pipe and the drip irrigation pipe through the auxiliary heating component; when the Roots vacuum pump is in the second working state, the air and water medium in the transport water-permeable pipe and the drip irrigation pipe are quickly sucked back by gas back suction. When the Roots vacuum pump is in the second working state, the valve pipeline receives the pressure value or water flow sensing signal and opens to discharge the infiltrated water in the highland and low-lying area.

[0080] In the present invention, shallow tillage is used to destroy the frozen soil on the surface, the soil structure is dried in combination with heat source drying gas, and the first-level aeration is used to decompose the soil and enhance water permeability, while the second-level aeration is used to perform primary killing of pests and diseases; winter irrigation with fresh water is used to deeply treat the salt content and pests and diseases in the soil, and at the same time, the infiltrated water is quickly collected and refluxed by absorbing gas to form a negative pressure, thereby forming a fast and efficient infiltration control cycle, reducing the control cost, and achieving the purpose of increasing production and efficiency.

[0081] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present disclosure (including the claims) is limited to these examples. In line with the present disclosure, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of different aspects of one or more embodiments of the present specification as described above, which are not provided in detail for the sake of simplicity.

[0082] In addition, to simplify the description and discussion, and in order not to obscure one or more embodiments of the present specification, known power / ground connections to integrated circuit (IC) chips and other components may or may not be shown in the provided figures. In addition, the device may be shown in the form of a block diagram so as to avoid obscuring one or more embodiments of the present specification, and this also takes into account the fact that the details of the implementation of these block diagram devices are highly dependent on the platform on which one or more embodiments of the present specification will be implemented (i.e., these details should be fully within the scope of understanding of those skilled in the art). Where specific details (e.g., circuits) are set forth to describe exemplary embodiments of the present disclosure, it is apparent to those skilled in the art that one or more embodiments of the present specification may be implemented without these specific details or with variations in these specific details. Therefore, these descriptions should be considered illustrative rather than restrictive.

[0083] While the disclosure has been described in conjunction with specific embodiments thereof, many alternatives, modifications and variations of these embodiments will be apparent to those skilled in the art in light of 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 in the scope of protection of this disclosure.

Claims

1. A saline-alkali land winter irrigation pest control device, comprising a blocking ditch opened between a highland and a low-lying land, a transport permeable pipe pre-buried and laid along the width direction of the low-lying land, a drip irrigation pipe laid along the width direction of the highland, and a pressure pump group installed at the first end of the blocking ditch and a water pump group installed at the second end of the blocking ditch; characterized in that: The pressure pump group includes a Roots vacuum pump in a first working state and a second working state; the Roots vacuum pump is connected to the transport permeable pipe and the drip irrigation pipe through a valve pipeline; wherein, When the Roots vacuum pump is in the first working state, the Roots vacuum pump 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 the second working state, the Roots vacuum pump absorbs gas and water medium into the transport water-permeable pipe and the drip irrigation pipe, and discharges the water medium into the blocking ditch through the valve pipeline; The water pump group includes: a deep water well, a pressure tank connected to the deep water well pump; the pressure tank is respectively connected to the transport permeable pipe and the drip irrigation pipe through a switch valve group; The saline-alkali land winter irrigation pest control equipment also includes a soil aerator for secondary aeration of the highland and the low-lying land; The soil aerator uses compressed gas for aeration during the first-stage aeration; The soil aerator aerates insecticidal gas during the second-stage aeration.

2. The saline-alkali land winter irrigation pest control equipment according to claim 1, characterized in that: A photovoltaic power generation panel is connected above the blocking groove via a bracket assembly.

3. The saline-alkali land winter irrigation pest control equipment according to claim 1, characterized in that: The low-lying land is pre-buried with a plurality of the transport and permeable pipes along the width direction, and the high land is pre-buried with a plurality of the drip irrigation pipes along the width direction; A plurality of the drip irrigation pipes are connected to a first main pipe located inside the blocking ditch; A plurality of the transport and permeable pipes are connected to a second main pipe located inside the blocking ditch.

4. The saline-alkali land winter irrigation pest control equipment according to claim 3, characterized in that: The valve pipeline includes a first three-way pipe and a second three-way pipe; wherein, The Roots vacuum pump is connected to the first main pipe through a first three-way pipe; The Roots vacuum pump is connected to the second main pipe through a second three-way pipe; The free ports of the first tee pipe and the second tee pipe are both equipped with pressure solenoid valves facing the blocking groove.

5. The saline-alkali land winter irrigation pest control equipment according to claim 1, characterized in that: A multi-stage desalination filtration system is installed inside the blocking ditch and at the front end of the deep water well.

6. The saline-alkali land winter irrigation pest control equipment according to claim 4, characterized in that: The switch valve group includes a first switch valve and a second switch valve connected to the bottom of the pressure tank; wherein, The first switch valve is connected to the first main line, and the second switch valve is connected to the second main line.

7. A method for controlling pests and diseases in saline-alkali land by irrigation in winter, characterized in that: The following steps are involved: Step 1: Shallow tillage to level high ground and low-lying land; Step 2: Dig blocking trenches on the slopes adjacent to the highland and low-lying land, and lay slope protection plates inside the blocking trenches; Step 3: pre-bury the transport permeable pipe in the low-lying land, pre-bury the drip irrigation pipe in the high land, and connect the first main pipe and the second main pipe accordingly; Step 4: Install a pressure pump set at the first end of the blocking ditch, and install a water pump set at the second end of the blocking ditch; Step 5: Use a soil aerator to perform primary aeration on high ground and low-lying land, and simultaneously place the Roots vacuum pump in the first working state; Step 6: Detect soil fragmentation and dryness, use soil aerator to perform secondary aeration on highlands and low-lying areas to kill pests and diseases at the primary level; Step 7: Start the water pump group to supply fresh water to the first main pipeline and the second main pipeline, and stop supplying water after forming an infiltration cycle; Step 8. Turn on the Roots vacuum pump in the second working state to quickly absorb the infiltration water in the highlands and low-lying areas, and circulate back and forth to form multiple infiltration cycles to achieve efficient desalination and pest control.

8. The method for controlling pests and diseases in saline-alkali land by irrigation in winter according to claim 7, characterized in that: The shallow tillage depth of the low-lying land is greater than the shallow tillage depth of the high land.

9. The method for controlling pests and diseases in saline-alkali land by irrigation in winter according to claim 7, characterized in that: When the Roots vacuum pump is in the first working state, the compressed heat source dry 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 the second working state, the air and water medium in the transport water-permeable pipe and the drip irrigation pipe are quickly sucked back by gas back suction.

10. The method for controlling pests and diseases in saline-alkali land by irrigation in winter according to claim 7, characterized in that: When the Roots vacuum pump is in the second working state, the valve pipeline is opened to discharge the infiltrated water in the highland and the lowland after receiving the pressure value or the water flow sensing signal.

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