1237 results about "Soil preparation" patented technology

The invention relates to the technical field of saline-alkali soil improvement. The invention provides an extremely severe saline-alkali soil improvement method which comprises the following steps: (1) ploughing soil to be improved, ditching, and spreading a material A into ditches; (2) irrigation is carried out after crops are sown in the ditches, and field management is carried out in the crop growth period; (3) after crops are harvested, crop straw is smashed and subjected to rotary tillage into soil; and (4) repeating the steps (1)-(3), and carrying out continuous soil improvement treatment. According to the technical scheme, the soil structure and the microbial environment are improved through soil preparation and fertilization before sowing, the salt content of soil of a plough layer is reduced through a salt reducing measure, soil osmotic pressure is reduced, and the salt content of the soil is continuously reduced through a crop planting measure. According to the scheme, the soil saline-alkali improvement effect is good, a good soil environment is created for seed budding and seedling emergence stages, and the seed emergence rate is increased.

The invention relates to the technical field of sowing methods, and provides a full-amount straw returning sowing method for high rice yield and rice field emission reduction, which can realize the uniform penetration rate of straws to more than 90%, promote the increase of oxygen content in a plough layer and rhizosphere, effectively promote the oxidation of rice field methane, reduce methane emission and relieve the poison of reducing substances to rice roots. The method effectively relieves the problems of early-stage runt seedlings and later-stage withering of rice under straw returning, saves cost, realizes rice yield increase, and comprises the following steps: 7-10 days before rice harvesting, draining water in a rice field, and adopting a harvester with a straw crushing function and a throwing device for harvesting during harvesting, the method comprises the following steps: chopping straws, uniformly scattering the chopped straws in a field, turning over as soon as possible after rice is harvested, soaking the field in shallow water of 1-2 cm on the field surface for half a day before rice transplanting, performing rotary-tillage-free soil preparation and stubble burying, selecting a rice variety suitable for local climate and soil conditions for seeding, and performing field management and strengthening field disease and pest monitoring after seeding.

The invention relates to the technical field of organic fertilizers and planting of watermelons and muskmelons, and provides a special fertilizer for milk irrigated watermelons and muskmelons and a double-stubble planting method for sweetness enhancement of milk irrigated watermelons and muskmelons. The special fertilizer for the milk irrigated watermelons and muskmelons comprises black goat manure, sophora alopecuroide, sesame seed meal, bran, organic fresh milk, brown sugar and zymophyte. The black goat manure is pulverized into powder by a pulverizer, the sophora alopecuroide is pulverizedinto 1 cm to 2 cm, and the ratio of the black goat manure, the sophora alopecuroide, the sesame seed meal, the brans, the organic fresh milk, the brown sugar and the zymophyte is 2700-3200: 80: 50: 150: 5: 1. The double-stubble planting method for sweetness enhancement of the milk irrigated watermelons and muskmelons comprises the following steps: selection of a nursery seedling plate and soil, cleaning and germination accelerating of seeds, soil preparation, transplanting, irrigation, topdressing, shaping and forking of watermelon and muskmelon vines and fruit bearing of the watermelons and the muskmelons. The problems that in an existing watermelon and muskmelon planting process, soil nutrients are damaged due to the fact that chemical fertilizers are used for a long time, and the sweetness of melons is reduced are solved.

The invention provides an annual intercropping green manure planting method suitable for orchards in plateau areas. According to the method, tartary buckwheat and vicia villosa are mainly adopted as green manure plants, and a plurality of key steps of land parcel selection, soil preparation before sowing, variety selection, seed treatment, green manure sowing, plant management, cutting and covering and the like are clearly stipulated. The method can improve the utilization rate of nutrients in the soil, increase the content of organic matters in the soil, improve the soil quality, effectively inhibit growth of weeds between rows and on ridges of the organic apple orchard, reduce the weeding cost, and solve the problem of high labor cost caused by long-term ploughing and weeding of the organic apple orchard in the plateau mountain area of Yunnan province. Excessive dependence on organic fertilizer is effectively relieved, and the method is an annual intercropping mode for comprehensively improving ecological benefits and economic benefits of the orchard.

The invention discloses a shallow hidden fire area radon gas in-situ tracing accurate identification and definition prevention and control system, belongs to the technical field of mine fire prevention and control, and aims to construct a dynamic monitoring, accurate delineation and targeted plugging multi-cooperation closed-loop governance chain and an in-situ radon detection and identification monitoring unit. Drilling, cup burying and sampling integrated operation is completed, and a radon gas concentration abnormal signal is monitored in real time; the radon measurement magnetic method fire area precise delineation unit is used for quantitatively delineating a fire source prevention and control area in a grading manner by fusing a radon gas magnetic field two-parameter ring type measurement network layout and combining an intersection and union set abnormal area division method and a comprehensive abnormal index threshold value method; according to the earth surface crack self-adaption blocking treatment unit, a dynamic shoveling solidified slurry precise blocking device is adopted, and efficient treatment of the shallow buried coal seam hidden fire area is achieved by separating an earth surface and an underground air leakage channel through bucket prepared soil screening and conveying, instant slurry preparation through a synthesis system, directional slurry spraying through a blocking mechanism and crawler belt ballasting dense blocking.

The agricultural tillage land preparation machine comprises a first rack, and first supporting plates are fixed to the four corners of the first rack correspondingly. Through the arrangement of the soil transverse cutting structure, the soil longitudinal cutting device and the soil block smashing structure, when a tractor slowly pulls the device to move forwards, the soil transverse cutting structure can leave transverse cutting grooves in the surface of a cultivated land; the longitudinal soil cutting device can cut the ground between two adjacent transverse cutting grooves left on the cultivated land after the transverse soil cutting structure works into a plurality of blocks, and the soil block crushing structure can crush soil blocks which are cut into blocks after the transverse soil cutting structure and the longitudinal soil cutting device work; the broken soil is discharged from the through holes in the arc-shaped soil screening plate, so that when the device is used for soil preparation, cultivated land can be firstly cut into small blocks, then soil blocks are shoveled up from the bottoms of the soil blocks and are broken, and the purpose of uniformly breaking a planting soil layer on the earth surface is effectively achieved.

The invention provides a base fertilizer and mouth fertilizer simultaneous application combined seeder for rape and wheat. The base fertilizer and mouth fertilizer simultaneous application combined seeder comprises a discharging height adjusting system, a ditching and soil preparation system, a rack fan system and a seed fertilizer simultaneous application system, the discharging height adjusting system is connected with the rack fan system through a discharging height adjusting system connecting rod and a discharging height adjusting system mounting groove; the ditching and soil preparation system is connected with the rack fan system through a rack side plate; and the seed and fertilizer simultaneous application system is connected with the rack fan system through a seed and fertilizer box mounting plate. By adjusting the height of the cross beam of the discharging height adjusting system, seeds and a mouth fertilizer fall down from a proper height, and the situation that a seed outlet and a mouth fertilizer outlet make contact with soil, and discharging blockage is caused is avoided. The staggered installation of the seed outlet and the mouth fertilizer outlet can ensure that the seeds and the mouth fertilizer keep a certain vertical distance when falling into the soil, so that the direct contact between the seeds and the chemical fertilizer is effectively avoided, the direct ablation effect of the chemical fertilizer on the seeds is reduced, the seeds are protected from being damaged, and the emergence rate is increased.

The invention relates to the technical field of data monitoring, in particular to a tilling depth online monitoring system and method for a traction type tilling and soil preparation machine tool, and the method specifically comprises the steps: obtaining the real-time operation state data of the tilling and soil preparation machine tool through a sensor network, and obtaining the real-time point cloud data of the soil surface through a laser scanning device; calculating and obtaining a real-time machine tool tilling depth uniform value of the tilling and soil preparation machine tool, and calculating and obtaining a real-time soil disturbance uniform value of the tilling and soil preparation machine tool; and according to the real-time machine tool tilling depth uniform value and the real-time soil disturbance uniform value, performing coupling evaluation on the first-round tilling quality of the traction type tilling and soil preparation machine tool, and according to the first-round tilling quality coefficient, performing operation guidance on secondary-round turnover tilling. The problems that in the prior art, due to the fact that real-time monitoring on the tilling depth and soil disturbance is lacked, the tilling depth is not uniform, soil disturbance is not consistent, the soil structure and fertility are further affected, and finally crop growth and yield reduction are caused are solved.

The invention relates to the technical field of biological improvement methods, and discloses a comprehensive biological improvement method for severe saline-alkali grassland. According to the method, S1, early evaluation and planning are conducted, S2, straw returning to the field and soil preliminary conditioning are conducted, S3, shallow ploughing and soil preparation operation is conducted, S4, microbial inoculation is conducted to strengthen soil activity, S5, pioneer plant sowing and planting are conducted, S6, precise irrigation and drainage regulation and control are conducted, and S7, long-term monitoring and later-period management and maintenance are conducted, through straw returning to the field and microbial inoculation, the pH value of soil can be reduced to 8.0-8.5 from the initial 8.5-10.5, and the salt content is reduced to 0.5%-1% from 1%-3%; compared with the prior art, the method has the advantages that the alkalinization degree is obviously reduced, meanwhile, the organic matter content is increased from lower than 1% to 2%-3%, the soil structure is improved, the porosity is increased, the air permeability and the water permeability are enhanced, a good soil environment is created for plant growth, for example, humus generated by straw decomposition can promote soil particle aggregation, a stable aggregate structure is formed, and the water and fertilizer retention capacity of soil is improved.

The invention belongs to the technical field of white spirit byproduct treatment, and relates to nutrient soil and a preparation method thereof, and the preparation method of the nutrient soil comprises the following steps: step 1, preparing a compost material: adopting white spirit brewing sludge as a compost raw material, adding a conditioner and Maotai-flavor white spirit vinasse, uniformly mixing, and adjusting the moisture content to obtain the compost material; step 2, stacking fermentation: carrying out aerobic fermentation on the compost material to obtain fermented soil; 3, nutrient soil preparation, wherein the prepared fermented soil is mixed with phosphogypsum and red mud, and the nutrient soil is obtained. A certain amount of Maotai-flavor liquor vinasse and a regulator are added into the liquor brewing sludge, so that the compost maturity of the liquor brewing sludge can be effectively accelerated, the formation of humus is accelerated, the fermentation period is shortened, and the quality of a compost product is ensured. Meanwhile, nutrient soil prepared by mixing the prepared fermented soil with ardealite and red mud is free of undesirable phenomena such as hardening or root burning and the like when used for planting.

The invention discloses forestry land preparation equipment, and relates to the technical field of forestry protection, the forestry land preparation equipment comprises a cockpit, an obstacle removing assembly and a land preparation assembly, the horizontal longitudinal two sides of the bottom end of the cockpit are fixedly connected with first cross beams, and the bottom ends of the first cross beams are fixedly connected with second cross beams; the two horizontal transverse sides of the second cross beams penetrate through and are jointly and rotationally connected with a driving shaft, advancing wheels are arranged at the two ends of the driving shaft, and limiting grooves facing the outer side of the device are formed in one ends of the two first cross beams. By arranging the obstacle clearing assembly, obstacle clearing operation is conducted on the ground before soil preparation operation, the obstacle clearing capacity is adaptive to complex conditions of the ground, and then the working efficiency of the device is effectively improved; by arranging the adjusting mechanism, the inclination angle of the lifting mechanism can be freely adjusted, and then horizontal soil preparation operation on the ground with different gradients is achieved; a lifting mechanism is arranged, soil preparation operation is synchronously completed along with advancing of the device, and the soil preparation effect can be freely controlled according to the ground condition.

A rear module, as illustrated with tanks, seed blowers, and transfer pump for fertilizer is mounted on the existing design frame, axle, and steering system; but it is a separate, distinct module. The planting module and the harvesting module must be disconnected from the common front module power unit and switched for planting row crops or harvesting. The harvesting configuration can have an attachment to the header to seed non row crops, such as, a cover crop like rye or canola Such rear module can be the rear unit of an articulated vehicle, such as a harvester.

The invention discloses a method for promoting early growth and quick germination of flue-cured tobaccos under a high-salinity soil condition, the method comprises the steps of soil preparation and ridging, flue-cured tobacco transplanting, fertilization regulation and management after transplanting and ridging, and the high-salinity soil is improved, through the synergistic effect of soil conditioning and fertilizer and pesticide management technologies, the improvement period of the high-salinity tobacco planting soil is shortened, and the yield of the flue-cured tobaccos is increased. The improvement cost is reduced, the flue-cured tobacco can grow early and quickly under the extreme soil environment condition, and the tobacco leaf production is promoted.

The invention relates to the technical field of soil fertilization, in particular to a plain area dry farmland thick and fertile plough layer construction and productivity improvement method which comprises the following steps: in the first year, after corn is harvested, smashing straws, turning and burying the straws and returning the straws to the field, and in the next year, performing soil preparation and sowing by adopting flat-planting wide-narrow-row planting or ridge-planting uniform-row planting; in the second year, after the corn is harvested, the whole straw or smashed straw covers and returns to the field, straw row-collecting no-tillage sowing is carried out in the next year, and flat-cropping wide-narrow row planting is adopted for sowing; in the third year, after the corn is harvested, the whole straw or smashed straw covers and returns to the field, straw row-collecting no-tillage sowing is carried out in the next year, and flat-cropping wide-narrow row planting is adopted for sowing. Through the implementation of the technical method, the thickness of a plough layer of the dry farmland in the plain area is increased by 13-15 cm, the nitrogen fertilizer utilization rate is increased by 10%-15%, and the soil fertility level is increased by 0.5-1 grade.

The invention relates to the technical field of crop straw treatment and soil improvement, in particular to a rice straw returning method for improving soil fertility, which mainly comprises the following steps: crushing rice straws, soaking with a sodium hydroxide solution, and drying; then selecting specific strains, mixing and fermenting to prepare a microbial agent; preparing a composite additive in proportion; within 1-2 days after the rice is harvested, the pretreated straw, the microbial agent and the composite additive are applied to the field, deep ploughing is conducted, and irrigation is conducted; and finally, performing rotary tillage and soil preparation after straw decomposition, and monitoring and adjusting the pH value of the soil when next-stubble crops are planted. According to the method, straw is pretreated, lignin is destroyed through a sodium hydroxide solution, the particle size is accurately controlled, drying is conducted in cooperation, the microbial decomposition efficiency is improved, straw and soil are fully mixed through accurate ploughing in the field, decomposition is accelerated into nutrients, the straw can be powerfully decomposed through a microbial agent, and the soil micro-ecology is improved; the composite additive supplements various nutrients and enhances the water and fertilizer retention capability of soil.

The utility model relates to the technical field of agricultural machinery, in particular to a foldable shunting type soil preparation machine which comprises a machine frame, a front soil leveling assembly, a rear soil leveling assembly and a soil crushing assembly, and a traction mechanism is fixedly connected to the middle of the front end of the machine frame. The traction equipment drives the machine frame to move, in the moving process, cultivated soil is bulldozed and evenly spread through the left soil leveling assembly, the right soil leveling assembly, the front soil leveling assembly and the rear soil leveling assembly, the leveling purpose is achieved, then the soil crushing mechanism moves forwards along with the machine frame to the bulldozed soil and crushes soil blocks in the soil, the soil is looser, and sowing is facilitated; when the land preparation machine needs to be folded, the left frame and the right frame swing upwards through the first lifting mechanism and the second lifting mechanism, the width of the foldable flow dividing type land preparation machine can be effectively reduced, and transportation is convenient.

The invention provides a selenium-rich apricot planting method, and belongs to the technical field of fruit tree planting. The planting method comprises the following steps: soil preparation and fertilization management; performing planting; fertilization: respectively carrying out topdressing before flowering, in a flower bud differentiation period and in a fruit expansion period; and harvesting. A fertilizer for topdressing is a selenium-rich fertilizer, and the selenium-rich fertilizer is composed of a microbial fertilizer, animal manure, waste plant rhizomes, monopotassium phosphate, urea and a substance containing a selenium element; the microbial fertilizer is prepared from saline-alkaline tolerant bacillus, pseudomonas and arbuscular mycorrhizal fungi. According to the selenium-rich fertilizer disclosed by the invention, the saline-alkaline tolerant bacillus, the pseudomonas and the arbuscular mycorrhizal fungi are added into the selenium-rich fertilizer, and the enrichment effect of apricot trees on selenium in soil is improved through the synergistic effect of the saline-alkaline tolerant bacillus, the pseudomonas and the arbuscular mycorrhizal fungi, so that the content of selenium in apricots is greatly increased.

The invention provides a method suitable for soil improvement of a waste dump in a high and cold grassland mining area, and belongs to the technical field of ecological environment soil improvement. The method suitable for soil improvement of the waste dump in the high and cold grassland mining area comprises the following steps that 1, an ecological four-dimensional fertilizer is selected as a base fertilizer, fertilization is conducted in the middle ten days of May, and then rotary tillage and irrigation are conducted; 2, after irrigation is completed, soil preparation is carried out, ecological bags are sown, and then irrigation is carried out; 3, when the plants grow to the tillering stage, two-dimensional fertilizer is applied for topdressing, and irrigation is conducted immediately after the two-dimensional fertilizer is applied; topdressing is conducted when the plants grow to the initial flowering stage in the next year; topdressing is carried out for 3 years. According to the method, a series of technical means such as application of the ecological four-dimensional pesticide fertilizer, planting of the ecological bags, topdressing and maintenance are adopted, and the purposes of improving the physicochemical properties of the soil of the waste dump in the high and cold grassland mining area and improving the plant habitat condition are achieved.

The invention provides solid-waste-based high-strength fluid-state solidified soil and a preparation method, and relates to the technical field of fluid-state solidified soil preparation, and the solid-waste-based high-strength fluid-state solidified soil comprises, by mass, 40-60 parts of waste residue soil, 10-20 parts of III-type recycled aggregate, 1-10 parts of recycled micro powder, and 10-35 parts of a composite curing agent. The method has the beneficial effects that a material system with excellent stability is constructed by integrating the III-type recycled aggregate, the recycled micro powder and the industrial solid waste, and the material system is scientific in proportion, reliable in process and capable of effectively meeting the technical requirements of various engineering scenes on the high-strength flow-state solidified soil.

The invention discloses a high-yield cultivation method for enhancing the stress resistance of camellia oleifera. The method comprises the following steps: selecting acidic red soil with the soil layer thickness of not less than 1m, performing deep tillage and soil preparation, and performing field planting on Guilin camellia chekiangoleosa and other excellent varieties; farmyard manure and special compound fertilizer are applied in the planting year; in the second year, applying fertilizers in stages after spring shoots, flowering and fruit picking, and irrigating by micro-spraying belts; from the third year, fertilization is carried out in the spring shoot starting period, before flowering and after fruit picking, and annular furrow fertilization and humidity control irrigation are matched; weeding, pruning and bud picking in spring and autumn every year to improve the stress resistance and stable yield capability of camellia oleifera; according to the method, an excellent camellia oleifera variety with high stress resistance is selected, the root system environment is optimized in combination with acid soil deep ploughing and fertilization, hormone compound fertilizer is applied in stages and is matched with micro-spraying belt irrigation, and accurate regulation and control of water and fertilizer can be achieved; the survival rate, the stress resistance and the yield stability of the camellia oleifera under the adverse conditions of drought, high temperature, diseases and pests and the like can be comprehensively improved.

The invention discloses corn straw pressing and burying soil covering equipment, which belongs to the technical field of agricultural equipment, and structurally comprises a crushing bin, a shoveling and guiding bin and a residue collecting bin, a shovel head and a soil preparation transverse cylinder are arranged at the front end of the shovel guide bin and the rear end of the crushing bin respectively; a transmission belt is arranged on the inner side of the shovel guide bin; the bottom of the slag collecting bin is fixedly communicated with a snakelike guide pipe, the lower end of the snakelike guide pipe extends to the deep position of the ground, a spiral conveying shaft is rotationally installed in the snakelike guide pipe, and a ground breaking plough is arranged on the front side of the bottom of the snakelike guide pipe; according to the application, corn straws and corn stubbles dispersed all around on the ground can be collected in a centralized manner, the direct contact amount of hard soil blocks and the crushing part is reduced, and the crushed corn straws and corn stubbles are fully mixed with a straw degrading bacterial agent and then are applied to the ground in a closed injection manner, so that the crushing efficiency is improved; the situation that straw chippings remain on the shallow layer of the ground and become nutrients for breeding of germs and eggs is prevented, adverse effects on the health condition of crops are avoided, and normal growth and development of the crops are guaranteed.

The invention provides tillage and soil preparation equipment and method for improving the water utilization efficiency, and relates to the technical field of strip tillage and agricultural machinery, in particular to the tillage and soil preparation equipment and method for improving the water utilization efficiency. Therefore, the water utilization efficiency of soil and the yield and quality of crops are remarkably improved, the power consumption of tillage and soil preparation equipment can be reduced, the strip tillage quality and the strip tillage efficiency are improved, and the maintenance cost of machinery is indirectly reduced; the tillage and soil preparation equipment can achieve the integrated functions of straw returning, soil preparation, fertilization, pressing, drip irrigation belt laying, mulching film laying and the like, the tillage depth can be adjusted according to the actual situation, the number of the auxiliary racks can be selected according to the area of a field during tillage, the width can be adjusted by adjusting the width of the strip tillage wheel and the width of the pressing wheel, and the tillage and soil preparation efficiency is improved. And a wide-narrow row farming mode is realized by adjusting the distance between the auxiliary racks according to actual conditions.

The present invention discloses an ecological garden engineering land preparation device and a land preparation method, which includes a vehicle frame. A crushing cylinder is fixed on the vehicle frame. A feeding hopper is arranged above the crushing cylinder. A turning door is hinged below the crushing cylinder. The lower part of the turning door is hinged to a crushing rod. A crushing knife is fixed at the bottom of the crushing rod. A horizontal conveying cylinder and an inclined conveying cylinder are fixed on the vehicle frame at the front side of the crushing cylinder. A tooth harrow is fixed at the bottom of the rear side of the inclined conveying cylinder. A crushing knife and a suction fan are arranged inside the crushing cylinder. A tip is fixed on the crushing rod. The bottom of the horizontal conveying cylinder is connected to a rotary tiller through a lifting rod. A leveling plate is arranged at the rear wheel; by providing a crushing cylinder, a horizontal conveying pipe, an inclined conveying pipe, a tooth harrow, a crushing knife, a suction fan, a feeding hopper, a turning door, a crushing rod, a transition cylinder, a rotary tiller, and a flow channel and a nozzle are arranged inside the crushing rod. The grass stems are collected before plowing the land, which not only avoids the grass stems being wound around the rotary tiller and affecting the effect of the rotary tiller, but also can crush and mix the grass stems and fertilizers at the same time, with strong functionality and simplified land preparation process.

The invention discloses a tea garden autumn sowing and spring sowing green manure combination annual grass control method, and relates to the technical field of tea tree cultivation management, and the method specifically comprises the following steps: S1, after autumn equinox and before Frost's Descent, applying a base fertilizer and preparing soil in combination with a tea garden, and sowing winter green manure; s2, performing seedling stage management after seedling emergence; s3, after the beginning of spring, topdressing is conducted, and worst weeds are manually pulled out; s4, after spring tea production is finished at the end of April, turning and pressing are conducted, and summer green manure is sown; s5, from May to June, topdressing and impurity removal are conducted; and S6, turning and pressing at the end of September, and carrying out the steps S1 to S6 again. The method is simple and easy to operate, is matched with tea garden farming in crop rotation connection, does not miss farming time, innovates application and optimal combination of local grass seeds, fills a grass prevention gap period, realizes green, economical and efficient annual grass control of the tea garden, injects new power for boosting green development of the tea industry, and provides a new way for boosting cost saving and income increasing of tea farmers.

The invention discloses a method for inducing infiltration of root systems of sandy vegetation. The method comprises the steps of land selection and preparation, pit digging, vegetation selection, arrangement of a PVC pipe water applying system, vegetation planting and backfilling and layered water control operation. According to the method, PVC pipes with water seepage holes with different depths are arranged near the root system of vegetation, a self-descending and lifting piston structure of a water-absorbing expansion cylindrical block and a depth-keeping hook-hanging ring chain is adopted in the pipes for the first time, and the distance between the water seepage holes, the length of a rope section and the size of a hanging ring are accurately calculated, so that it is guaranteed that the distance between the water seepage holes and the rope section is accurately calculated at each stage; water can only seep from the water seepage holes with the specific target depth, the root system is guided to follow a water signal to be deeply pricked downwards continuously, a deep and developed root system is formed, accurate layered water control and root system directional induction are achieved, the drought resistance and wind falling resistance of vegetation are greatly enhanced, the water consumption is low, the vegetation survival rate is high, and the growth vigor is good; the depth-keeping water applying system serves as a multifunctional and permanent ecological restoration unit and further has the functions of soil ventilation, humidification and self-cleaning.

The invention discloses an agricultural tillage land preparation machine which comprises a tractor body and a driving wheel, a rotary tillage assembly used for conducting rotary tillage on the ground is fixedly connected to the rear portion of the tractor body through a suspension device capable of being rotationally adjusted, and bearing wheels capable of keeping tightly attached to the ground are arranged below the tractor body. The detection assembly is used for detecting whether the height difference between the driving wheel and the bearing wheel changes or not. According to the invention, the bearing wheel is attached to the ground and cooperates with the detection assembly to detect the height difference between the bearing wheel and the driving wheel, so that the rotary tillage assembly can adjust the rotary tillage depth according to the soil height or humidity change, and the height between the rotary tillage assembly and the ground is adjusted according to the height difference change between the driving wheel and the bearing wheel; the rotary tillage depth of the rotary tillage assembly on the land is kept consistent, and the situation that the fertilizer is too close to or too far away from the seeds, and consequently the seeds are poor in development or die is avoided.

The invention provides a rotation method for reducing morbidity of root-knot nematodes, which comprises the following steps: planting waltheria indica: preparing soil, sowing waltheria indica in the middle of a furrow bed, covering soil, and spraying water until the furrow bed is infiltrated until the waltheria indica is harvested; one month before the tobacco seedlings are transplanted, the harvested waltheria indica is used as waltheria indica fertilizer, deep ploughing is carried out, the tobacco seedlings are transplanted, topping is carried out, leaves are reserved, and tobacco leaves are harvested. The waltheria indica and the tobacco are subjected to crop rotation, the waltheria indica fertilizer prepared from the waltheria indica, the edible mushroom residues and the black fungus fermentation liquor is applied in combination with planting of the waltheria indica, the two modes cooperate with each other, the soil microbial community structure is adjusted, the soil organic matter content is improved, the good prevention and control effect on the root-knot nematode is achieved, and the prevention and control effect can reach 88%; the harvested tobacco leaves are light in membrane lipid peroxidation degree, growth and development of tobacco plants are promoted, accumulation of substances contained in the tobacco leaves is improved, and the quality of the tobacco leaves is good.

The invention provides a method for planting winter wheat in saline-alkali soil, which belongs to the technical field of wheat planting, and comprises the following steps: S1, rotary tillage and soil preparation: carrying out rotary tillage at the depth of 25-30cm 30-40 days before sowing, doping foreign soil, and applying straw and gypsum; s2, seed treatment: selecting saline-alkaline tolerant wheat seeds, soaking the wheat seeds in a liquid medicine, and soaking the wheat seeds in the liquid medicine; s3, ridging operation: high ridges with the ridge height of 15-20 cm, the ridge surface width of 40-50 cm and the ridge spacing of 25-30 cm are constructed; s4, sowing in line on ridges: sowing the wheat seeds treated in the step S2 on the ridges in line, wherein the sowing depth is 2-3cm; s5, film mulching operation, wherein the ridges are covered with mulching films of a double-film structure, and the film edges of the mulching films are sealed with humic acid slurry; s6, field management: uncovering the film and supplementing seedlings in the seedling stage, and drip irrigation and topdressing under the film in the growth stage. According to the saline-alkali soil winter wheat planting method provided by the invention, the wheat emergence rate can be remarkably increased by constructing a low-salt micro-domain environment.

The invention relates to the technical field of crop cultivation, in particular to a red bean plastic film mulching water-saving and fertilizer-retaining cultivation method, and aims to solve the problems that the integrity of an existing plastic film is damaged, the utilization efficiency of water and fertilizer is low, and the labor intensity of field management is high. The cultivation method is characterized by comprising the steps of soil preparation and bedding, base fertilizer application, laying of a drip irrigation belt below the center line of a ridge body, laying of a mulching film with prefabricated holes, accurate guiding of red bean seeds into the holes of the mulching film through a precision seeder, water and fertilizer integrated accurate management in the whole process, and prevention and control of diseases, weeds and weeds in combination with green prevention and control measures. By adopting the technical scheme, the utilization efficiency of water resources and fertilizers can be remarkably improved, stable performance of the mulching film is ensured, the labor intensity is reduced, and the effects of saving water, retaining fertilizers, saving labor, increasing yield and protecting environment are achieved.

The invention provides an efficient breeding method of cremastra appendiculata, and relates to the technical field of cremastra appendiculata breeding. The efficient breeding method comprises the steps of soil preparation and land selection, strain laying, wood laying, gap filling, seed dressing, sowing, shading and management. According to the method, the specific method is adjusted, humus soil containing a compound microbial agent is adopted to fill gaps among wood, then sowing is conducted, the germination rate of seeds is increased, sawdust, perlite, coco coir, decomposed organic fertilizer, bamboo charcoal powder and pyroligneous liquor are used for seed dressing before sowing, the air permeability of a matrix is improved, seeds are prevented from being rotten due to accumulated water, and breeding of pathogenic bacteria is inhibited; the water-retaining property of the substrate is increased; and symbiotic bacteria planting and seed metabolism are promoted. The foliar fertilizer containing the garlic extracting solution, the onion leaching solution, the monopotassium phosphate, the boric acid and the urea is adopted, elements needed by growth of the rhododendron simsii are provided, the strong insecticidal and bactericidal effects are achieved, and therefore the incidence rate of diseases and pests is reduced, and the seedling survival rate and the breeding efficiency of the rhododendron simsii are improved.