Multi-year shallow buried intelligent organic circulation water and air drip irrigation ditch ridge mulching interplanting method

Abstract

The application discloses a shallow-buried intelligent organic recycling water and gas drip irrigation furrow and ridge mulching interplanting method for many years, which comprises the following steps: constructing a full-automatic intelligent shallow-buried one-way water and gas dual-purpose drip irrigation system; constructing an organic recycling fertilizer supply system, preparing liquid organic fertilizer and organic compound granular fertilizer by means of biogasification treatment of urban and rural organic waste; performing furrow and ridge mulching interplanting, sowing dense planting crops on the bottom surface of the furrow and sowing sparse planting crops on the ridge by means of coating treatment; implementing water, gas and heat precise regulation and control, injecting warm water or cold water and synchronously injecting hot air or cold air according to the growth stage of crops; implementing overall no-tillage and local rotation, realizing the interchange of furrow and ridge positions by means of local ploughing after straw returning to field; and implementing drip irrigation system safety overwintering protection, injecting hot air to dry the pipe network after winter irrigation, salt compression and freezing. The application realizes the drip irrigation system for many years, the recycling of urban and rural organic waste, the intelligent and precise regulation and control of water, fertilizer, gas and heat and the protective cultivation of furrow and ridge rotation, improves soil fertility and prolongs the service life of the system.

Description

Technical Field

[0001] This invention relates to the field of agricultural planting technology, specifically to a method for shallow-buried intelligent organic circulating water and air drip irrigation with furrow and ridge mulching that has been used for many years. Background Technology

[0002] The inventor began researching water-saving irrigation technology using plastic film in 1990, and subsurface irrigation technology in 1995. In 1997, he applied for patent number "CN1160475A," entitled "Method for Subsurface Irrigation of Crops under Plastic Film Cultivation." This technology was promoted throughout the Xinjiang Production and Construction Corps in 1999 and became widespread nationwide in 2002, making a significant contribution to the development of water-saving agriculture in my country.

[0003] However, with the continuous development of agricultural production technology, the limitations of traditional drip irrigation under mulch have gradually become apparent: First, drip irrigation capillaries and branch pipes need to be installed and dismantled every year, which is not only costly but also labor-intensive and time-consuming, increasing the labor intensity of farmers; Second, traditional surface drip irrigation systems cannot be used for winter irrigation, leading to serious overwintering problems of pests and diseases in farmland, forcing an increase in pesticide use, which affects the quality of agricultural products and the ecological environment; Third, traditional drip irrigation systems lack intelligent control methods, and the water and fertilizer utilization rate needs to be improved; Fourth, long-term monoculture has led to soil structure damage and decreased soil fertility, making it difficult to achieve sustainable production; Fifth, the pressure of urban and rural organic waste disposal is increasing, and there is a lack of effective resource utilization methods; Sixth, traditional planting models are unable to cope with natural disasters such as late spring frosts and windstorms, resulting in higher risks in agricultural production.

[0004] Therefore, there is an urgent need for a comprehensive agricultural planting method that can achieve multi-year use, intelligent control, organic recycling, furrow-ridge rotation, and conservation tillage to solve the above-mentioned technical problems. Summary of the Invention

[0005] To address the technical problems existing in the above-mentioned background art, this invention provides a method for using shallow buried intelligent organic circulating water and air drip irrigation with furrow and ridge mulching for many years.

[0006] The technical solution adopted in this invention is as follows:

[0007] A method for shallow-buried intelligent organic circulating water-air drip irrigation with furrow and ridge mulching, which has been used for many years, includes:

[0008] Step 1: Construct a fully automated, intelligent, multi-year, shallow-buried, one-way water-air dual-use drip irrigation system: Begin excavating 80cm wide and 40cm deep square trenches along both sides of the main pipeline of the farmland water source pumping station to the ends of each horizontal branch pipe, with a slope of 0.2%. Bury two main water delivery pipelines made of nano-grade high-strength soft and flexible material, two branch pipes, and tee pipes with long legs and switches. Install 40℃ constant-temperature heating coils on the outer edge of the wireless control valve outlet of the pumping station trench system and ridge system, and simultaneously install high-pressure hot air injection valves. On the two branch pipes, install tee pipes with long legs and switches in a staggered, pre-set row spacing. The capillary tubes are 28cm long, with the top of the capillary tubes 10-13cm from the ground. An unmanned navigation vehicle is used to dig trenches 8-13cm deep according to the preset row spacing. Nanoscale anti-aging and anti-clogging unidirectional water and air dual-use micro-sprinkler drip irrigation tape with a nanoscale multifunctional chemical film sprayed on the outer edge is laid with the water outlet facing upward. The drip irrigation tape is connected to the capillary tubes to form a trench system drip irrigation network and a ridge system drip irrigation network that are controlled independently. Permanent polarized signs are installed on the two main pipelines, multiple branch pipelines, and both ends of all capillary drip irrigation tapes to complete the construction of the drip irrigation system.

[0009] Step 2: Construct an organic circular fertilizer supply system: Sorting urban and rural organic waste and collecting it at the nearest collection room next to the sewer observation well is carried out. The waste is then pulverized into a paste by a 40-mesh large-scale high-strength pulverizer and transported to a fully automatic intelligent large-scale plastic biogas tank at a depth of less than 2 meters through a high-pressure directional rotary air pump pipe and the municipal underground sewage network. The biogas is mixed with pulverized crop straw and other materials for anaerobic fermentation. The biogas is used to generate electricity on-site and fed into the grid. The biogas slurry is filtered through a 120-mesh fully automatic backwash filter and then mixed with highly efficient active microbial agents. It is then applied to the shallow soil at a concentration of 3% through the drip irrigation system or used as an insecticide or foliar fertilizer. The biogas residue is mixed with plant nutrient agents and combined with soil testing and fertilizer formula data to form compound phosphorus and potassium fertilizers, which are then used to make organic compound fertilizer granules for later use.

[0010] Step 3: Select either furrow-ridge mulching rotation or flat mulching planting mode based on crop type and planting area; for furrow-ridge mulching, sow densely planted crops on both sides of the drip irrigation tape at the bottom of the furrow, and sow sparsely planted crops coated with delayed germination agent on both sides of the drip irrigation tape on the ridge. Cover the ridge with fully biodegradable silver-black mulch with a degradation period of more than 120 days, and spray liquid mulch with a degradation period of more than 100 days on the bottom of the furrow; for flat mulching, match the number of drip irrigation tapes and planting rows according to the specifications of narrow film, wide film, and extra-wide film; use strong double-sided adhesive tape to enhance wind resistance during mulching, and add horizontal windproof film belts in strong wind areas.

[0011] Step 4, implement intelligent and precise control of water, air and heat: According to the crop growth stage and ambient temperature, inject 25-35℃ warm water or 15℃ cold water into the root zone soil through the drip irrigation network of the furrow and ridge system, and simultaneously inject 35℃ high-pressure hot air or 15℃ cold air; in early spring, first supply warm water and hot air to densely planted crops at the bottom of the furrow to promote germination, and after the soil temperature at the surface 10cm stabilizes above 12℃, supply heat to sparsely planted crops on the ridges; in summer, inject cold air to cool down the high temperature.

[0012] Step 5: Implement overall no-till and partial crop rotation: After crop harvest, the straw is crushed into chaff and sprayed with microbial active decomposition agents, and the mulch film is recycled; the original ridge soil is covered on the original furrow straw by partial tillage, and the tillage depth is kept at least 5cm away from the drip irrigation tape to realize the exchange of furrow and ridge positions; partial crop rotation includes furrow and ridge mulching rotation and shallow buried flat crop rotation. The straw can be returned to the field on the spot or crushed into a paste by a 40-mesh high-power pulverizer and transported by hose to a smart plastic biogas digester at a depth of less than 2 meters for mixing and fermentation;

[0013] Step 6, Implement winter protection for the drip irrigation system: When the ground freezes after winter irrigation, inject 35°C high-pressure hot air into the drip irrigation network of the furrow and ridge system to dry the water in the network and reduce the humidity to below 15%, then close and seal the system valves.

[0014] Furthermore, in step 1, the preset row spacing is determined according to the planting area: when using the machine-harvested cotton mode, it is set at 38cm; when using the rainy area mode, it is set at 50cm; the drip irrigation tape is divided into five-year and ten-year specifications according to the service life. The five-year specification is suitable for farmland crops, and the ten-year specification is suitable for orchards.

[0015] Furthermore, in step 2, urban and rural organic waste, including kitchen waste, garden waste, poultry and livestock manure, slaughtering and processing waste, aquatic product processing by-products, edible fungus residue, leather processing waste, and waste from fruit and vegetable production and sales, is collected nearby to the collection room at the sewer observation well. It is then pulverized into a paste by a 40-mesh large-scale high-strength pulverizer and transported by a hose to the downstream direction below the sewer observation well. It is then transported by a high-pressure directional rotary air pump installed here. Waste that has not been pulverized cannot be directly discharged into the sewer. High-pressure directional rotary air pumps are installed at the bends of the municipal underground sewage pipe network. Plastic biogas tanks are configured according to the treatment scale and implement a cycle of gas production, storage, and feeding.

[0016] Furthermore, in step 3, the furrow-ridge mulching intercropping further includes: for densely planted crops such as wheat or dryland rice, two rows are planted on each side of each drip irrigation strip on the bottom of the furrow, for a total of four rows; for sparsely planted crops such as corn or cotton, one row is planted on each side of each drip irrigation strip on the ridge, for a total of two rows; the fully biodegradable mulch covering the ridge is a silver-black mulch with a degradation period of more than 120 days, and the liquid mulch sprayed on the bottom of the furrow is a liquid mulch with a degradation period of more than 100 days.

[0017] Furthermore, in step 3, the flat-cropping mulch planting mode includes narrow film, wide film, and ultra-wide film planting. The number of rows in the flat-cropping mulch planting mode is determined according to the width of the mulch and the number of drip irrigation tapes: for narrow film, a drip irrigation tape is laid in the middle of a 70cm film, and there are two rows of various types on both sides of the narrow film; for wide film, two to three drip irrigation tapes are laid in a 90-140cm film, and there are four to six rows of various types on both sides of the wide film; for ultra-wide film, four to eight drip irrigation tapes are laid in a 220-610cm film, and there are eight to sixteen rows of various types on both sides of the ultra-wide film.

[0018] Furthermore, in step 3, when covering the ridges with fully biodegradable mulch, the wind resistance of the mulch is enhanced by laying strong double-sided adhesive tape or zippered strips of biodegradable mulch. For areas prone to strong winds in early spring, horizontal windproof mulch belts are made by using recycled old drip irrigation tape and soil bags at 2-3 meter intervals.

[0019] Furthermore, in step 4, the intelligent and precise control of water, air, and heat further includes: after early spring sowing, drip irrigation of 25-35°C warm water and injection of 35°C high-pressure hot air to the densely planted crops at the bottom of the furrows through the drip irrigation network of the furrow system to promote the germination and emergence of densely planted crop seeds; after the soil temperature at a depth of 10cm stabilizes above 12°C, drip irrigation of 25-35°C warm water and injection of 35°C high-pressure hot air to the sparsely planted crops on the ridges through the drip irrigation network of the ridge system to promote the germination and emergence of sparsely planted crop seeds treated with delayed germination agents; during the high-temperature period in summer, injection of 15°C cold air into the soil in the crop root zone to cool the farmland.

[0020] Furthermore, in step 5, local crop rotation includes two modes: furrow-ridge mulch rotation and shallow-buried flat rotation. In the shallow-buried flat rotation mode, the drip irrigation tape is buried at a depth of 8-10cm, and the land is harrowed using a flat rotary power harrow at a depth of 4-5cm, implementing local rotation between planting strips and rows. The utilization methods of straw include crushing it into chaff on-site, spraying it with fiber microbial decomposition agents, returning it to the field, and then shallowly burying and harrowing it, or collecting it for fermentation in a biogas digester.

[0021] Furthermore, the method is applicable to high-standard farmland that has undergone ripening treatment, but not to newly reclaimed land or land with compacted topsoil; the locomotive used to implement the method is an unmanned navigation locomotive, ensuring that the row spacing is straight and the depth is consistent.

[0022] The beneficial effects of this invention are:

[0023] (1) The drip irrigation system has been used for many years. By burying the drip irrigation tape shallowly 8-13cm underground and spraying a nano-level waterproof, anti-aging, insect-proof and plant root-damage-proof film on the outer edge of the drip irrigation tape, the root damage problem is effectively solved; by using large-volume winter irrigation to suppress salt, the salinization problem is solved; by enhancing the anti-aging performance of the material and injecting 35℃ high-pressure hot air into the entire network after the winter freezes to dry the environment inside the network, the drip irrigation tape can safely overwinter, extending its service life to 30-50 years, which greatly reduces irrigation costs and labor intensity.

[0024] (2) Furrow-ridge rotation and intercropping have been realized. Through the intercropping mode of planting densely planted crops on the bottom of the furrow and sparsely planted crops on the ridge, the sowing of two crops can be completed in one machine operation; by crushing straw into chaff and returning it to the field, spraying microbial decomposition agents, and partially tilling, the position of furrows and ridges can be interchanged, the integrity of the soil structure can be maintained, and the organic combination of planting and soil maintenance can be achieved, making the soil more and more fertile.

[0025] (3) Intelligent and precise control of water, fertilizer, air and heat has been achieved. Through the independently controlled drip irrigation network of the furrow system and the drip irrigation network of the ridge system, warm water or cold water of different temperatures is precisely injected according to the crop growth stage and the ambient temperature, and high-pressure hot air or cold air is injected at the same time to regulate the soil water, fertilizer, air and heat environment; 35℃ warm water is injected in early spring to promote germination, and 15℃ cold air is injected in summer to cool down, equipping the farmland with "air conditioning", improving the efficiency of crop photosynthesis, and achieving high quality, stable and high yield.

[0026] (4) It achieves safe winter protection for the drip irrigation system. After the winter irrigation salt sealing and freezing, 35℃ high-pressure hot air is injected to dry the water in the pipeline network, so that the humidity in the pipeline network drops to below 15%, avoiding damage from winter freezing and greatly extending the service life of the drip irrigation system.

[0027] (5) A complete disaster prevention and mitigation system has been established. Through the dual protection of ridge mulching and spraying liquid film on the bottom of the ditch, and through multiple measures such as strong double-sided adhesive tape, biodegradable film strips with zippers, and horizontal windproof film belts, the damage caused by wind disasters and late spring cold is effectively resisted. Attached Figure Description

[0028] Figure 1 This is a flowchart illustrating the multi-year application method of shallow-buried intelligent organic circulating water and air drip irrigation furrow and ridge mulching in an embodiment of the present invention. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] like Figure 1 As shown in the embodiment of the present invention, the method for multi-year shallow-buried intelligent organic circulating water-air drip irrigation furrow and ridge mulching includes:

[0031] Step 1: Construct a fully automated, intelligent, multi-year, shallow-buried, one-way water-air dual-use drip irrigation system: Begin excavating 80cm wide and 40cm deep square trenches along both sides of the main pipeline of the farmland water source pumping station to the ends of each horizontal branch pipe, with a slope of 0.2%. Bury two main water delivery pipelines made of nano-grade high-strength soft and flexible material, two branch pipes, and tee pipes with long legs and switches. Install 40℃ constant-temperature heating coils on the outer edge of the wireless control valve outlet of the pumping station trench system and ridge system, and simultaneously install high-pressure hot air injection valves. On the two branch pipes, install tee pipes with long legs and switches in a staggered, pre-set row spacing. The capillary tubes are 28cm long, with the top of the capillary tubes 10-13cm from the ground. An unmanned navigation vehicle is used to dig furrows 8-13cm deep according to the preset row spacing. Nanoscale anti-aging and anti-clogging unidirectional water and air dual-use micro-sprinkler drip irrigation tape with a nanoscale multifunctional chemical film sprayed on the outer edge is laid with the outlet facing upwards. The drip irrigation tape is connected to the capillary tubes to form independently controlled furrow system drip irrigation network and ridge system drip irrigation network. Permanent polarized signs are installed on the two main pipelines, multiple branch pipelines, and both ends of all capillary drip irrigation tapes to complete the construction of the drip irrigation system.

[0032] In step 1, the preset row spacing is determined according to the planting area: when using machine-harvested cotton mode, it is set to (66+10) / 2=38cm; when using rainy area mode, it is set to (60+40) / 2=50cm; the drip irrigation tape is divided into five-year specification and ten-year specification according to the service life. The five-year specification is suitable for farmland crops, and the ten-year specification is suitable for orchards.

[0033] After the trench was excavated, two main water supply pipelines made of nano-grade high-strength material were laid. These pipelines are resistant to freezing, pressure, insects, and plant root damage, and are buried at a depth of 40cm. This burial depth was designed to account for the depth of the frozen soil layer in northern regions, ensuring that frost heave damage will not occur in winter, and providing a service life of 50-100 years, achieving a permanent solution.

[0034] In addition, before laying the flexible main pipe and various branch pipes in the field, a layer of ceramic tiles can be laid on the bottom of the ditch. The flexible main pipe and branch pipes can be placed on the ceramic tiles and then covered with a U-shaped rigid pressure-resistant corrugated pipe larger than the flexible pipe. After that, the protected pipeline can be backfilled and compacted. In this way, the main pipe and various branch pipes in the field will not be damaged by soil deformation, and can be used for a long time.

[0035] On the two main water supply pipes, staggered tee capillary tubes with switches are installed at a predetermined row spacing. These tee capillary tubes are specially designed connectors, 28cm in length, with the top end designed to be 10-13cm above the ground for easy connection to the shallow-buried drip irrigation tape. The staggered installation ensures that the capillary tube joints on the two branch pipes are offset, forming a final drip irrigation tape spacing of 38cm or 50cm. After installing the two main pipes and arranging the branch pipes at 50cm intervals, the switches on all tee capillary tubes are turned off, and an initial water test and pressure test are conducted. After checking for leaks, the tee capillary tubes are placed at the bottom of the trench and temporarily secured with soil.

[0036] The preset row spacing is determined according to the planting area: when using the machine-harvested cotton mode, it is set at (66+10) / 2=38cm, which matches the row spacing requirements for machine-harvested cotton in Xinjiang; when using the rainy area mode, it is set at (60+40) / 2=50cm to adapt to crop planting habits.

[0037] Unmanned guided vehicles are used for laying drip irrigation tape. Equipped with the BeiDou navigation system, these vehicles ensure straight and consistent furrow spacing and depth, avoiding human error. Furrows are dug to a depth of 8-13cm at preset row spacing, and nano-grade anti-aging and anti-clogging unidirectional water-air dual-use micro-sprinkler drip irrigation tape is laid, offering advantages such as anti-aging, anti-clogging, and high strength.

[0038] The outer edge of the drip irrigation tape is coated with a nano-level waterproof, anti-aging, insect-proof, and root-damaging protective film. This film contains an agent that causes plant roots to stop growing and turn away upon contact. This design solves the root damage problem faced by underground drip irrigation systems. When crop roots grow near the drip irrigation tape, they stop growing and turn away upon contact with the protective film, preventing root invasion and blockage or damage to the drip irrigation tape. The nano-level unidirectional water and air dual-use micro-sprinkler drip irrigation tape is available in five-year and ten-year service life specifications. The five-year specification is suitable for farmland crops, while the ten-year specification is suitable for orchards and forests. Users can choose according to their actual needs.

[0039] After the drip irrigation tape is laid, each tape is securely connected to its corresponding T-joint capillary tube manually. Once connected, the switches on all T-joint capillary tubes are turned on for a second water and pressure test to check the dripping of each tape and ensure there are no leaks. After verification, the trenches are filled with soil, leaving the tops of the T-joint capillary tubes protruding 10-13cm above the ground, and the soil is compacted. At this point, independently controlled furrow and ridge drip irrigation networks are established, laying the foundation for subsequent differentiated water and fertilizer management.

[0040] Finally, permanent aurora information signs should be installed at both ends of the farmland to mark the location and number of each drip irrigation tape, for the reference of the tractor during each crop planting season. Farmland with the necessary resources can also install a drip irrigation tape damage alarm system; once the drip irrigation tape is damaged, the system will automatically alarm and locate the fault point for timely repair. It is important to emphasize that permanent aurora signs should be installed around the farmland edges, on the two main pipelines, all branch pipelines, and at both ends of all drip irrigation tapes.

[0041] To prevent soil morphology changes and pressure damage to branch pipes and main pipes due to expansion and contraction under both pressurized and depressurized water and air conditions, after installation and pressure testing, a U-shaped rigid pressure-resistant corrugated pipe, larger than the branch and main pipes, can be installed around them. This prevents increased external pressure on the flexible branch and main water supply pipes caused by soil contraction above the network pipes, thus affecting the service life of the network pipes. The length of the U-shaped pipe in the field should be 76 cm in cotton-growing areas, and all main and branch pipes should be wrapped with insulation material to prevent heat loss. In non-cotton-growing areas, the length should be 100 cm, with a 3 cm semi-circular hole at the top, or 3 cm semi-circular holes should be pre-made at both ends of the 76 cm U-shaped rigid pressure-resistant corrugated pipe for easy splicing and covering. For the main pipe, a U-shaped rigid pressure-resistant corrugated pipe cover of a convenient installation length should be pre-made.

[0042] Step 2: Construct an organic circular fertilizer supply system: Sorting urban and rural organic waste and collecting it at a collection room next to the sewer observation well is carried out. The waste is then pulverized into a paste by a large, high-strength 40-mesh pulverizer and transported to a fully automatic, intelligent, large-scale plastic biogas tank at a depth of less than 2 meters via a high-pressure directional rotary air pump pipe and the municipal underground sewage network. The biogas is mixed with pulverized crop straw and other materials for anaerobic fermentation. The biogas is used to generate electricity on-site and fed into the grid. The biogas slurry is filtered through a 120-mesh fully automatic backwash filter and then mixed with highly efficient active microbial agents. It is then applied to the shallow soil at a concentration of 3% through the drip irrigation system or used as an insecticide or foliar fertilizer. The biogas residue is mixed with plant nutrient agents and combined with soil testing and fertilizer formula data to form compound phosphorus and potassium fertilizer granules for later use. Waste that has not been pulverized and pulped cannot be directly discharged into the sewer.

[0043] In a specific embodiment of the invention, during prefabrication, the manufacturer can add 3-4 cm of soft foam insulation material to the outer edge of the main flexible pipe. Simultaneously, a rigid, pressure-resistant, and anti-aging engineering plastic corrugated pipe is directly added over the soft foam insulation material. Similarly, for field branch pipes, after installing a 76 cm or 100 cm long-legged capillary tee with a switch, a 3-4 cm soft foam insulation layer is assembled, followed by a rigid, pressure-resistant, and anti-aging engineering plastic corrugated pipe. Prefabrication can be done in 4-6 meter sections, with simple and reliable connection devices at both ends. This facilitates installation in farmland and ensures reliable quality.

[0044] In step 2, urban and rural organic waste, including kitchen waste, garden waste, livestock manure, slaughtering and processing waste, aquatic product processing by-products, edible fungus residue, leather processing waste, and waste from fruit and vegetable production and sales, is collected nearby to the collection room at the sewer observation well. It is then pulverized into a paste by a large, high-strength 40-mesh pulverizer and transported via hose to the downstream side below the sewer observation well. From there, it is transported by a high-pressure directional rotary air pump installed at this location. Waste that has not been pulverized cannot be directly discharged into the sewer. High-pressure directional rotary air pumps are installed at bends in the municipal underground sewage network. Plastic biogas tanks are configured according to the processing capacity and implement a cycle of gas production, storage, and feeding.

[0045] This step aims to build a system for the collection, transportation, treatment, and resource utilization of urban and rural organic waste, providing high-quality organic fertilizer sources for farmland and realizing organic circular agriculture.

[0046] In practical implementation, the first step is to determine the sources of urban and rural organic waste. Urban and rural organic waste includes: kitchen waste from urban and rural residents, fallen leaves and weeds from pruning community gardens and green spaces, livestock and poultry farm manure, sewage from slaughterhouses and processing plants, by-products from fish, aquaculture, and seafood processing units, large amounts of mushroom residue generated during edible mushroom cultivation, waste from leather processing plants, and large amounts of fruit and vegetable waste from fruit and vegetable production bases and wholesale markets. These organic wastes are collected locally and then pulverized and processed near the sewer observation well before being discharged into the sewer system.

[0047] Specialized crushing equipment is used to crush and pulp organic waste. The crushed and pulped organic waste slurry is then transported through underground pipelines to fully automatic plastic biogas tanks around the farmland.

[0048] To address blockages in underground pipe networks, high-pressure air pumping devices can be installed at bends in the main underground pipelines. These devices involve drilling a hole in the top of the main pipeline, inserting a downstream-rotating high-pressure air pump, sealing it, and then injecting high-pressure air. This high-pressure air not only flushes the inner walls of the sewer system but also propels organic waste slurry downstream, effectively preventing blockages and reducing odor pollution from sewer manholes during the summer.

[0049] Fully automatic plastic biogas digesters can be installed around farmland, with the number configured according to the processing scale, implementing a cycle of gas production, storage, and feed rotation. Organic waste slurry enters the biogas digester and ferments under anaerobic conditions, producing biogas, biogas slurry, and biogas residue. After purification, the biogas can be used to generate electricity and feed it into the power grid, or as a clean energy source for nearby residents.

[0050] The biogas slurry produced during fermentation is filtered to remove suspended particles, yielding liquid organic fertilizer for drip irrigation. This liquid organic fertilizer is rich in amino acids, humic acid, trace elements, and beneficial microorganisms, and can be used as a foliar fertilizer or applied to the crop root zone via the drip irrigation system.

[0051] The biogas residue produced during fermentation is compounded with highly efficient active microbial endophytic agents and inorganic nitrogen, phosphorus, and potassium fertilizers according to soil testing and fertilizer recommendation data to obtain organic compound granular fertilizer. Soil testing and fertilizer recommendation data are obtained by sampling and testing farmland soil, including indicators such as soil organic matter content, nitrogen, phosphorus, and potassium content, pH value, and trace element content. Based on this data, the compounding ratio is determined to achieve precise fertilization. Organic compound granular fertilizer can be applied deeply into the soil as a base fertilizer or top dressing.

[0052] This step enables the resource utilization of urban and rural organic waste, solving the problem of waste disposal and providing high-quality organic fertilizer for farmland, gradually phasing out simple inorganic chemical fertilizers and promoting the development of agriculture towards organic ecological cycles.

[0053] Step 3: Select the furrow-ridge mulching rotation or flat mulching planting mode based on crop type and planting area; when furrow-ridge mulching, sow densely planted crops on both sides of the drip irrigation tape at the bottom of the furrow, and sow sparsely planted crops coated with delayed germination agent on both sides of the drip irrigation tape on the ridge. Cover the ridge with fully biodegradable silver-black mulch with a degradation period of more than 120 days, and spray liquid mulch with a degradation period of more than 100 days on the bottom of the furrow; for flat mulching, match the number of drip irrigation tapes and planting rows according to the specifications of narrow film, wide film, and extra-wide film; when mulching, use strong double-sided adhesive tape to enhance wind resistance, and add horizontal windproof film belts in strong wind areas.

[0054] In step 3, furrow-ridge mulching intercropping further includes: for densely planted crops such as wheat or dryland rice, two rows are planted on each side of each drip irrigation strip on the bottom of the furrow, for a total of four rows; for sparsely planted crops such as corn or cotton, one row is planted on each side of each drip irrigation strip on the ridge, for a total of two rows; the fully biodegradable mulch covering the ridge is a silver-black mulch with a degradation period of more than 120 days, and the liquid mulch sprayed on the bottom of the furrow is a liquid mulch with a degradation period of more than 100 days.

[0055] In step 3, the flat-cropping mulch planting mode includes narrow film, wide film, and ultra-wide film planting. The number of rows in the flat-cropping mulch planting mode is determined according to the width of the mulch and the number of drip irrigation tapes: for narrow film, a drip irrigation tape is laid in the middle of a 70cm film, and two rows of various types are laid on both sides of the narrow film; for wide film, two to three drip irrigation tapes are laid on a 90-140cm film, and four to six rows of various types are laid on both sides of the wide film; for ultra-wide film, four to eight drip irrigation tapes are laid on a 220-610cm film, and eight to sixteen rows of various types are laid on both sides of the ultra-wide film.

[0056] In step 3, when covering the ridges with fully biodegradable mulch, the wind resistance of the mulch is enhanced by laying strong double-sided adhesive tape or zippered strips of biodegradable mulch. For areas prone to strong winds in early spring, horizontal windproof mulch belts are made by using recycled drip irrigation tape and soil bags at 2-3 meter intervals.

[0057] This step aims to select appropriate planting patterns and row numbers based on crop type and planting area, and to complete the sowing and mulching of two crops during the same machine operation, thus achieving intercropping.

[0058] In practice, the planting pattern and number of rows are first determined based on the crop type and planting area. Two planting patterns are available: furrow-ridge mulching rotation or flat mulching.

[0059] When using the furrow-ridge mulching intercropping method, sowing operations are completed simultaneously on the bottom of the furrow and on the ridges during the same machine operation. Specifically, an unmanned guided machine is used, with the row spacing adjusted to 76cm or 100cm, the furrow depth set at 10cm, and the furrow bottom width determined according to the crop type. For intercropping of densely planted and sparsely planted crops, densely planted crops are sown on both sides of each drip irrigation strip on the bottom of the furrow, and sparsely planted crops are sown on both sides of each drip irrigation strip on the ridge.

[0060] For densely planted crops, such as wheat, barley, oats, and dryland rice, two rows are planted on each side of each drip irrigation tape at the bottom of the furrow, for a total of four rows. This four-row layout makes full use of the space at the bottom of the furrow and improves land use efficiency. For sparsely planted crops, such as corn, cotton, tomatoes, and potatoes, one row is planted on each side of each drip irrigation tape on the ridge, for a total of two rows. This two-row layout is adapted to the growth characteristics of sparsely planted crops and provides ample growing space for the plants.

[0061] For sparsely planted crop seeds sown on raised beds, a delayed germination agent coating treatment is necessary. This agent keeps the seeds dormant in the soil, allowing them to germinate and emerge when environmental conditions are suitable. This treatment is crucial for intercropping techniques such as wheat-cotton or wheat-rice, ensuring that the two crops sown at the same time have staggered germination times, adapting to their respective optimal growth periods.

[0062] After sowing, mulching is carried out. A fully biodegradable mulch film is laid on the ridges, and a liquid mulch film is sprayed onto the bottom of the furrows. The fully biodegradable mulch film covering the ridges is a silver-black film with a degradation period of over 120 days. This silver-black film has multiple functions, including reflecting light and cooling, suppressing weeds, and repelling pests. The liquid mulch film sprayed onto the bottom of the furrows has a degradation period of over 100 days, forming a dense protective film to retain moisture and prolong the moisture retention effect.

[0063] To improve the wind resistance of plastic film, when covering the ridges with fully biodegradable plastic film, the wind resistance of the film can be enhanced by laying strong double-sided adhesive tape or zippered strips of biodegradable film. Specifically, while spreading the film on the ridges, attach 2cm wide square strong double-sided adhesive strips to both sides of the film, securing them firmly to the edges. Then, press the strips into a 5cm deep trench along the film's edge and compact the soil. For areas prone to strong winds in early spring, recycled drip irrigation tape and soil bags can be used to create horizontal windproof film belts at 2-3 meter intervals. These belts can be filled with 5-8 kg of soil, tied tightly, and effectively prevent damage from winds exceeding level 10.

[0064] When using the flat-cropping mulch planting pattern, the row configuration is determined based on the mulch width and the number of drip irrigation tapes. Flat-cropping mulch planting patterns include narrow film, wide film, and extra-wide film planting: narrow film consists of 70cm film with one drip irrigation tape in the middle, and two rows of various types on both sides; wide film consists of 90-140cm film with two to three drip irrigation tapes, and four to six rows of various types on both sides; extra-wide film consists of 220-610cm film with four to eight drip irrigation tapes, and eight to sixteen rows of various types on both sides. As the mulch width increases, the benefits of mulch in warming the soil, retaining moisture, increasing yield, and improving efficiency gradually improve. With the upgrading of mulch technology, the most advanced silver-black biodegradable non-woven fabric for frost protection and weed control can be used in the future to replace traditional mulch, enabling multi-row planting with a single film of even wider widths.

[0065] This step enables the sowing and mulching of two crops to be completed on the same machine, greatly saving the manpower and machinery costs of phased sowing and laying the foundation for subsequent intercropping.

[0066] Step 4, implement intelligent and precise control of water, air and heat: According to the crop growth stage and ambient temperature, inject 25-35℃ warm water or 15℃ cold water into the root zone soil through the drip irrigation network of the furrow and ridge system, and simultaneously inject 35℃ high-pressure hot air or 15℃ cold air; in early spring, first supply warm water and hot air to densely planted crops at the bottom of the furrow to promote germination, and after the soil temperature at the surface 10cm stabilizes above 12℃, supply heat to sparsely planted crops on the ridges; in summer, inject cold air to cool down during high temperatures.

[0067] This step aims to precisely inject warm or cold water at different temperatures into the soil of the crop root zone through independently controlled furrow and ridge drip irrigation networks, based on the crop growth stage and ambient temperature, while simultaneously injecting high-pressure hot or cold air to regulate the soil's water, fertilizer, air, and heat environment and promote healthy crop growth.

[0068] In practice, the drip irrigation strategy for different crops is first determined based on the sowing and mulching results. After early spring sowing, when the ambient temperature is low, warm water at 25-35℃ is dripped onto the densely planted crops at the bottom of the furrows through a drip irrigation network, while simultaneously injecting 35℃ high-pressure hot air. The warm water drip irrigation volume is controlled at approximately 5-6 cubic meters per acre, ensuring the seed rows are moist, but avoiding standing water in the furrows, as this is detrimental to seed germination and growth. Simultaneously injecting high-pressure hot air replenishes oxygen to the soil, promoting microbial activity, and simultaneously increases the root zone temperature, accelerating seed germination and emergence. This measure fully utilizes the inexpensive electricity available in Northwest China due to surplus solar and wind power generation, heating the water before dripping it into the soil, resulting in a warming effect far exceeding that of traditional mechanical methods.

[0069] For sparsely planted crops on the ridges, since the seeds have been treated with a delayed germination agent, drip irrigation should be suspended at this stage. Once the soil temperature at a depth of 10cm has stabilized above 12℃, then apply warm water (25-35℃) and high-pressure hot air (35℃) to the sparsely planted crops on the ridges through the drip irrigation network of the ridge system. This will promote germination and emergence of the seeds treated with the delayed germination agent. The drip irrigation volume should be controlled at approximately 8-10 cubic meters per acre to ensure sufficient water absorption and germination. At this time, densely planted crops at the bottom of the furrows have already emerged and are growing; they can be irrigated together with the sparsely planted crops on the ridges to achieve coordinated water and fertilizer management.

[0070] During peak crop growth periods, water demand increases significantly. At this time, both furrow and ridge drip irrigation networks can be activated simultaneously to increase rapid dripping and meet crop growth needs. To reduce deep water and fertilizer leakage and shorten dripping time, the principle of small, frequent dripping should be adopted to improve water and fertilizer utilization efficiency.

[0071] During the hottest periods of summer, the surface temperature often exceeds the optimal range for crop growth at midday. At this time, injecting 15°C cool air into the soil around the crop roots helps cool the farmland. This cool air can be achieved by injecting high-pressure air into deep wells, utilizing the low temperature of the deep groundwater to cool the air before it is delivered into the drip irrigation network. This measure is equivalent to installing a "large air conditioner" in the farmland, reducing the damage of high temperatures to crops, improving photosynthetic efficiency, and achieving high-quality, stable, and high yields.

[0072] During water and fertilizer management, the liquid organic fertilizer obtained in step 2 is used for drip irrigation. This liquid organic fertilizer is rich in amino acids, humic acid, trace elements, and beneficial microorganisms. It is applied directly to the crop root zone through the drip irrigation system, resulting in rapid fertilizer effect and high utilization rate. Simultaneously, ecological herbicides and microbial herbicides can be applied in conjunction with drip irrigation to gradually phase out chemical herbicides. For pest control in the field, biogas slurry, ecological herbal agents, and Trichogramma wasps are used as much as possible to gradually phase out chemical pesticides.

[0073] Through precise regulation in this step, the coordinated supply of water, fertilizer, air, and heat is achieved, creating the best growing environment for crops and promoting their healthy growth.

[0074] Step 5: Implement overall no-till and partial crop rotation: After crop harvest, crush the straw into a chaff-like state and spray with microbial active decomposition agents, and recycle the mulch film; cover the original ridge soil onto the original furrow surface straw through partial tillage, maintaining a tillage depth at least 5cm away from the drip irrigation tape, and realize the exchange of furrow and ridge positions; partial crop rotation includes furrow-ridge mulch rotation and shallow buried flat crop rotation, and the straw can be returned to the field on the spot or crushed into a paste by a 40-mesh high-power pulverizer and transported by hose to a smart plastic biogas digester at a depth of less than 2 meters for mixing and fermentation.

[0075] This step aims to maintain the integrity of the soil structure through overall no-till farming and partial crop rotation, achieving an organic combination of planting and soil conservation, making the soil more fertile with each planting.

[0076] In practice, after crop harvest, the first step is straw treatment. The straw is pulverized into a fine powder using high-strength pulverizer and evenly spread on the ground. Immediately afterwards, a microbial active decomposition agent is sprayed. This agent contains highly effective fiber-decomposing bacteria, which accelerates straw decomposition and conversion into organic matter. After spraying the agent, the mulch film is recycled. The fully biodegradable mulch film on the ridges is collected and processed, while any incompletely degraded portion is incorporated into the soil along with the straw.

[0077] Partial tillage is performed. This involves covering the original ridge soil onto the original furrow surface with straw. Specifically, the soil in the center of the ridge is cut in half and tilled into the original planting furrows on both sides, then covered with straw and chaff that has been sprayed with fungicide. The tillage depth should maintain a distance of at least 5 cm from the drip irrigation tape under the original ridge to avoid damaging the shallow-buried drip irrigation tape. Through this operation, the original planting furrows are turned over to form new ridges, and the original ridges then become the planting furrows for the next crop, achieving a swap of ridge and furrow positions.

[0078] Localized crop rotation includes two modes: furrow-ridge mulching rotation and shallow-buried flat crop rotation. In the furrow-ridge mulching rotation mode, the drip irrigation tape is buried to a depth of 13cm, and furrow-ridge rotation is achieved through the aforementioned localized tillage. In the shallow-buried flat crop rotation mode, no ridges are formed, the drip irrigation tape is buried to a depth of 8-10cm, and the land is harrowed using a rotary power harrow to a depth of 4-5cm, strictly controlling the depth to avoid damaging the drip irrigation tape. During sowing, localized rotation is implemented between planting strips and rows, as the drip irrigation tape spacing is set at 38cm or 50cm, allowing for alternating use of planting strips and rows.

[0079] There are two options for utilizing straw: The first is to crush it into a fine powder on-site, spray it with a microbial decomposition agent, return it to the field, and then lightly bury and harrow the soil, as described above. The second is to collect and bundle the straw from the field, transport it to a fully automated plastic biogas digester at the edge of the field, gradually crush and pulp it, and discharge it into the biogas digester to be mixed with urban and rural organic waste for fermentation and biogasification. The two methods can be flexibly chosen according to the actual situation.

[0080] This step, involving overall no-till farming and partial crop rotation, not only protects the soil structure and reduces the damage caused by tillage, but also achieves the recycling of nutrients, continuously increasing soil organic matter and enhancing soil fertility.

[0081] Step 6, Implement winter protection for the drip irrigation system: When the ground freezes after winter irrigation, inject 35°C high-pressure hot air into the drip irrigation network of the furrow and ridge system to dry the water in the network and reduce the humidity to below 15%, then close and seal the system valves.

[0082] This step aims to ensure the safe overwintering of the drip irrigation system and extend its service life by reducing salt content during winter irrigation and drying the pipeline network, while also checking and eliminating air leaks.

[0083] In practice, before winter, a large-volume winter irrigation should be carried out. All branch pipe valves should be opened for comprehensive drip irrigation, with the water volume just enough to moisten the surface without visible water. Winter irrigation serves two purposes: first, it suppresses salt by leaching salts from the soil to deeper layers, reducing salinization; second, it stores water for crop growth in the following spring. After winter irrigation is completed, the main pipeline valve should be closed, but the field tee valves should remain open in preparation for subsequent drying.

[0084] After the ground freezes during winter irrigation to suppress salt deposits, high-pressure hot air at 35°C is injected into the drip irrigation networks of both the furrow and ridge systems. The injected hot air circulates within the network, drying any remaining water. The injection continues until the humidity within the network drops below 15%. This process is monitored using humidity sensors to ensure effective drying.

[0085] After the pipeline network is dry, close and seal the system valves. Close all the head valves of the furrow and ridge systems and seal them to prevent moisture from entering. At this time, the pipeline network remains dry, and even if the winter temperature drops below zero, it will not suffer frost heave damage. Through this winter protection measure every year, the service life of the drip irrigation network can be extended to 30-50 years.

[0086] Meanwhile, leaks in the pipeline network can also be detected during the drying process. If there is a damage in a certain part of the pipeline, there will be a noticeable leak when high-pressure hot air is injected. Pressure monitoring and regular inspections can help identify and resolve these faults promptly.

[0087] This dry winter protection also applies to shallow-buried drip irrigation capillary pipes. Although shallow-buried capillary pipes are designed for a service life of 5-10 years, their actual service life can be effectively extended through annual dry winter protection.

[0088] This step ensures the safe overwintering of the drip irrigation system, avoiding the risk of damage from frost heave in winter, and providing a guarantee for the system's long-term use.

[0089] Applicability and Implementation Requirements:

[0090] This invention's method is applicable to high-standard farmland that has undergone soil conditioning treatment, but not to newly reclaimed land or land with compacted topsoil. High-standard farmland is characterized by good soil structure, high organic matter content, and well-developed irrigation and drainage facilities, allowing it to fully leverage the technical advantages of this invention. For newly reclaimed land or land with compacted topsoil, soil conditioning and maturation must be carried out before applying this invention's method.

[0091] The locomotive used to implement the method of this invention must be an unmanned navigation locomotive to ensure straight row spacing and consistent depth. Especially when the seeder is equipped with a boot-type deep fertilizer applicator and a rotary tiller, the unmanned navigation can accurately control the working depth and avoid damaging the shallow-buried drip irrigation tape.

[0092] The main pipeline of the drip irrigation system must be monitored after installation and can only be used after it is confirmed to meet the standards. All pipes, fittings, valves, etc., should comply with relevant national standards to ensure the safe and reliable operation of the system.

[0093] It should also be noted that a 40-degree Celsius constant temperature heating coil is installed on the outer edge of the main pipeline of the pump house trench system and the ridge system, located after the wireless control valve, to heat the biogas slurry and bacterial agent water in the pipeline to above 35°C. At the same time, a high-pressure hot air injection valve is installed.

[0094] In summary, this invention constructs a comprehensive agricultural planting method that integrates fully automatic intelligent drip irrigation, organic circulating fertilizer source, furrow and ridge mulching intercropping, precise control of water, air and heat, overall no-till rotation, and safe overwintering protection. It achieves the goals of multi-year use, ecological circulation, high yield and efficiency, and sustainable development, and is a systematic project of modern high-tech ecological agriculture.

[0095] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A method for shallow-buried intelligent organic circulating water-air drip irrigation with furrow and ridge mulching, which has been used for many years, is characterized by: The method includes: Step 1: Construct a fully automated, intelligent, multi-year, shallow-buried, one-way water-air dual-use drip irrigation system: Begin excavating 80cm wide and 40cm deep square trenches along both sides of the main pipeline of the farmland water source pumping station to the ends of each horizontal branch pipe, with a slope of 0.2%. Bury two main water delivery pipelines made of nano-grade high-strength soft and flexible material, two branch pipes, and tee pipes with long legs and switches. Install 40℃ constant-temperature heating coils on the outer edge of the wireless control valve outlet of the pumping station trench system and ridge system, and simultaneously install high-pressure hot air injection valves. On the two branch pipes, install tee pipes with long legs and switches in a staggered, pre-set row spacing. The capillary tubes are 28cm long, with the top of the capillary tubes 10-13cm from the ground. An unmanned navigation vehicle is used to dig trenches 8-13cm deep according to the preset row spacing. Nanoscale anti-aging and anti-clogging unidirectional water and air dual-use micro-sprinkler drip irrigation tape with a nanoscale multifunctional chemical film sprayed on the outer edge is laid with the water outlet facing upward. The drip irrigation tape is connected to the capillary tubes to form a trench system drip irrigation network and a ridge system drip irrigation network that are controlled independently. Permanent polarized signs are installed on the two main pipelines, multiple branch pipelines, and both ends of all capillary drip irrigation tapes to complete the construction of the drip irrigation system. Step 2: Construct an organic circular fertilizer supply system: Sorting urban and rural organic waste and collecting it at the nearest collection room next to the sewer observation well is carried out. The waste is then pulverized into a paste by a 40-mesh large-scale high-strength pulverizer and transported to a fully automatic intelligent large-scale plastic biogas tank at a depth of less than 2 meters through a high-pressure directional rotary air pump pipe and the municipal underground sewage network. The biogas is mixed with pulverized crop straw and other materials for anaerobic fermentation. The biogas is used to generate electricity on-site and fed into the grid. The biogas slurry is filtered through a 120-mesh fully automatic backwash filter and then mixed with highly efficient active microbial agents. It is then applied to the shallow soil at a concentration of 3% through the drip irrigation system or used as an insecticide or foliar fertilizer. The biogas residue is mixed with plant nutrient agents and combined with soil testing and fertilizer formula data to form compound phosphorus and potassium fertilizers, which are then used to make organic compound fertilizer granules for later use. Step 3: Select the furrow-ridge mulching rotation or flat mulching planting mode based on crop type and planting area; when furrow-ridge mulching, sow densely planted crops on both sides of the drip irrigation tape at the bottom of the furrow, and sow sparsely planted crops coated with delayed germination agent on both sides of the drip irrigation tape on the ridge. Cover the ridge with fully biodegradable silver-black mulch with a degradation period of more than 120 days, and spray liquid mulch with a degradation period of more than 100 days on the bottom of the furrow; for flat mulching, match the number of drip irrigation tapes and planting rows according to the specifications of narrow film, wide film, and extra-wide film; when mulching, use strong double-sided adhesive tape to enhance wind resistance, and add horizontal windproof film belts in strong wind areas; Step 4, implement intelligent and precise control of water, air and heat: According to the crop growth stage and ambient temperature, inject 25-35℃ warm water or 15℃ cold water into the root zone soil through the drip irrigation network of the furrow and ridge system, and simultaneously inject 35℃ high-pressure hot air or 15℃ cold air; in early spring, first supply warm water and hot air to densely planted crops at the bottom of the furrow to promote germination, and after the soil temperature at the surface 10cm stabilizes above 12℃, supply heat to sparsely planted crops on the ridges; in summer, inject cold air to cool down the high temperature. Step 5: Implement overall no-till and partial crop rotation: After crop harvest, the straw is crushed into chaff and sprayed with microbial active decomposition agents, and the mulch film is recycled; the original ridge soil is covered on the original furrow straw by partial tillage, and the tillage depth is kept at least 5cm away from the drip irrigation tape to realize the exchange of furrow and ridge positions; partial crop rotation includes furrow and ridge mulching rotation and shallow buried flat crop rotation. The straw can be returned to the field on the spot or crushed into a paste by a 40-mesh high-power pulverizer and transported by hose to a smart plastic biogas digester at a depth of less than 2 meters for mixing and fermentation; Step 6, Implement winter protection for the drip irrigation system: When the ground freezes after winter irrigation, inject 35°C high-pressure hot air into the drip irrigation network of the furrow and ridge system to dry the water in the network and reduce the humidity to below 15%, then close and seal the system valves.

2. The method for multi-year shallow-buried intelligent organic circulating water-air drip irrigation furrow and ridge mulching as described in claim 1, characterized in that, In step 1, the preset row spacing is determined according to the planting area: when using machine-harvested cotton mode, it is set to 38cm; when using rainy area mode, it is set to 50cm; the drip irrigation tape is divided into five-year and ten-year specifications according to the service life. The five-year specification is suitable for farmland crops, and the ten-year specification is suitable for orchards and forests.

3. The method for multi-year shallow-buried intelligent organic circulating water-air drip irrigation furrow and ridge mulching as described in claim 2, characterized in that, In step 2, urban and rural organic waste, including kitchen waste, garden waste, livestock manure, slaughtering and processing waste, aquatic product processing by-products, edible fungus residue, leather processing waste, and waste from fruit and vegetable production and sales, is collected nearby to the collection room at the sewer observation well. It is then pulverized into a paste by a large, high-strength 40-mesh pulverizer and transported via hose to the downstream side below the sewer observation well. From there, it is transported by a high-pressure directional rotary air pump installed at this location. Waste that has not been pulverized cannot be directly discharged into the sewer. High-pressure directional rotary air pumps are installed at bends in the municipal underground sewage network. Plastic biogas tanks are configured according to the processing capacity and implement a cycle of gas production, storage, and feeding.

4. The method for multi-year shallow-buried intelligent organic circulating water-air drip irrigation furrow and ridge mulching as described in claim 3, characterized in that, In step 3, furrow-ridge mulching intercropping further includes: for densely planted crops such as wheat or dryland rice, two rows are planted on each side of each drip irrigation strip on the bottom of the furrow, for a total of four rows; for sparsely planted crops such as corn or cotton, one row is planted on each side of each drip irrigation strip on the ridge, for a total of two rows; the fully biodegradable mulch covering the ridge is a silver-black mulch with a degradation period of more than 120 days, and the liquid mulch sprayed on the bottom of the furrow is a liquid mulch with a degradation period of more than 100 days.

5. The method for multi-year shallow-buried intelligent organic circulating water-air drip irrigation furrow and ridge mulching as described in claim 4, characterized in that, In step 3, the flat-cropping mulch planting mode includes narrow film, wide film, and ultra-wide film planting. The number of rows in the flat-cropping mulch planting mode is determined according to the width of the mulch and the number of drip irrigation tapes: for narrow film, a drip irrigation tape is laid in the middle of a 70cm film, with one row on each side of the narrow film, for a total of two rows; for wide film, two to three drip irrigation tapes are laid in a 90-140cm film, with one row on each side of the wide film, for a total of four to six rows; for ultra-wide film, four to eight drip irrigation tapes are laid in a 220-610cm film, with one row on each side of the ultra-wide film, for a total of eight to sixteen rows.

6. The method for multi-year shallow-buried intelligent organic circulating water-air drip irrigation furrow and ridge mulching as described in claim 5, characterized in that, In step 3, when covering the ridges with fully biodegradable mulch, the wind resistance of the mulch is enhanced by laying strong double-sided adhesive tape or zippered strips of biodegradable mulch. For areas prone to strong winds in early spring, horizontal windproof mulch belts are made by using recycled drip irrigation tape and soil bags at 2-3 meter intervals.

7. The method for multi-year shallow-buried intelligent organic circulating water-air drip irrigation furrow and ridge mulching as described in claim 6, characterized in that, In step 4, the intelligent and precise control of water, air, and heat further includes: after early spring sowing, drip irrigation of 25-35°C warm water and injection of 35°C high-pressure hot air to the densely planted crops at the bottom of the furrows through the drip irrigation network of the furrow system to promote the germination and emergence of densely planted crop seeds; after the soil temperature at a depth of 10cm stabilizes above 12°C, drip irrigation of 25-35°C warm water and injection of 35°C high-pressure hot air to the sparsely planted crops on the ridges through the drip irrigation network of the ridge system to promote the germination and emergence of sparsely planted crop seeds treated with delayed germination agents; during the high-temperature period in summer, injection of 15°C cold air into the soil in the crop root zone to cool the farmland.

8. The method for multi-year shallow-buried intelligent organic circulating water-air drip irrigation furrow and ridge mulching as described in claim 7, characterized in that, In step 5, local crop rotation includes two modes: furrow-ridge mulch rotation and shallow-buried flat rotation. In the shallow-buried flat rotation mode, the drip irrigation tape is buried at a depth of 8-10cm, and the land is harrowed with a flat rotary power harrow to a depth of 4-5cm. Local rotation between planting strips and rows is implemented. The utilization of straw includes on-site crushing into chaff-like powder, spraying fiber microbial decomposition agent, returning to the field, and then shallow-buried harrowing, or collecting it for fermentation in a biogas digester.

9. The method for multi-year shallow-buried intelligent organic circulating water-air drip irrigation furrow and ridge mulching as described in claim 8, characterized in that, The method is applicable to high-standard farmland that has undergone maturation treatment, but not to newly reclaimed land or land with compacted topsoil. The locomotive used to implement the method is an unmanned navigation locomotive to ensure straight row spacing and consistent depth.

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