45results about How to "Improve the quality of cultivated land" patented technology

The invention belongs to the technical field of agricultural environment conservation and repair, and particularly discloses a conditioner for repairing farmland soil polluted by heavy metals and a preparation method. The processed raw materials such as quick lime, zeolite, sepiolite and calcium magnesium phosphate fertilizer are uniformly mixed proportionally, so as to obtain the conditioner. The conditioner provided by the invention is reasonable in formula, the method is feasible, the operation is simple, and the conditioner integrates the functions of repairing soil with heavy metal pollution, regulating and controlling the soil acidity and alkalinity, and the like, enables the effective state cadmium and lead in polluted farmland to be reduced by 22.4%-31.4% and 26.3%-43.5% respectively, enables the contents of cadmium and lead in rice to be reduced by 33.2%-38.9% and 29.4%-44.6% respectively, the pH of soil to be increased by 0.16-0.27 and the yield of rice to be improved by 3.6%-6.3%, and is applicable to various farmland soil seriously polluted by heavy metals and seriously acidified.

The invention discloses a method for increasing soil organic matter of a winter-fallowed paddy field. The method comprises the steps of milkvetch seeding, compost preparing, rice straw returning to field, milkvetch plowing and the like. According the method, through many years of practice, after rice is harvested, straw returning to field, milkvetch planting and additional farm compost applying are conducted, and the method is simple, easy to operate and low in cost; through an added special soil modifier, decomposition of the organic matter in soil can be accelerated, the winter soil temperature is increased, the soil vitality is kept, it is guaranteed that the good soil physicochemical status can be kept after planting in early spring, the organic matter content of the soil is effectively increased, the important significance for maintaining and improving the farmland quality and promoting agricultural sustainable development is achieved, and the method is suitable for being applied and popularized in large area.

The invention discloses an acidic biochar fertilizer suitable for saline-alkali soil and a preparation method thereof. The acidic biochar fertilizer comprises biochar as a raw material. The method comprises the following steps: drying yak manure, crushing and sieving the manure; mixing the sieved yak manure with deionized water, putting the mixture into a hydrothermal reaction kettle, and carryingout a hydrothermal reaction; washing the hydrothermal solution obtained after the reaction is finished with absolute ethyl alcohol until the hydrothermal solution is colorless; washing the hydrothermal solution with distilled water until the hydrothermal solution is neutral, then carrying out suction filtration, and drying the solid product to obtain biochar; mixing the biochar with a nitric acidsolution, oscillating the mixture, washing the mixture with deionized water, regulating the pH value, carrying out suction filtration, drying, sieving to obtain acidic biochar, granulating the acidicbiochar with a disc granulator, and drying to obtain the acidic biochar fertilizer. The method is simple, controllable and easy to implement; the acidic biochar fertilizer prepared by the invention can reduce the pH of saline-alkali soil and improve the quality of cultivated land; the biomass resource utilization efficiency is improved, and the solid waste environmental pollution is reduced.

The invention provides an improvement formula and an improvement method for new facility greenhouse soil, and aims to provide a set of comprehensive soil improvement formula and implementation schemeaccording to the principles of scientific benchmarking and dialectical compatibility in allusion to various problems of barren soil of facility vegetables. The invention has the following advantages:1, the formula is an organic source, and is environment-friendly and ecological; 2, the implementation method is simple and rapid; and 3, the main components of the formula are derived from kitchen organic matters, and the reuse of the kitchen organic matters not only solves the environmental protection pressure, but also provides high-quality organic matters and other nutrient elements for the improvement of the quality of cultivated land; 4, the use amount of the chemical fertilizer is reduced by 20-30%.

The present invention relates to a technical method for urea synergistic agent, which comprises the following components, by mass: 75%-81% of amine hexanoate, 5%-9% of sodium nitrophenolate, 4.5% -11% of monohydrate magnesium sulfate, and 5.5%-9% of sulfuric acid zinc. With the components mixed and processed into a granular material, a white crystalline powder is formed. The urea synergistic agent can achieve the purpose of increasing production, improving efficiency and reducing costs, and has effects that soil aggregate structure is improved, water content of soil is increased, accordingly the soil physical and chemical properties are improved, and thereby technical support is provided for the implementation of sustainable agriculture development. Moreover, the process is simple and has strong competitive strength. The urea synergistic agent improves the utilization rate of fertilizers and reduces the costs, meanwhile reduces the pollution of the environment, and furthermore, can improve the quality of crops and promote the root formation.

The invention discloses a biological fertilizer for preventing and controlling root black rot of tobacco, and a preparation method thereof, and belongs to the technical field of tobacco disease and pest control. The biological fertilizer comprises 26-30 parts of Acer truncatum seed cake meal, 18-22 parts of a nitrogen fertilizer, 13-20 parts of a phosphorus fertilizer, 16-22 parts of a potassium fertilizer, 2-3 parts of mineral source potassium fulvate, 1-2 parts of polyaspartic acid, 4-9 parts of conch shell powder, 0.5-2.5 parts of medium trace elements, 0.5-2 parts of chitosan, 0.5-1 part of agricultural algin, 0.5-1 part of glucose and 1-3 parts of a composite microbial agent. The biological fertilizer is prepared from the raw materials through the processes of crushing, mixing and thelike. The product is comprehensive in nutrients, can meet the requirements of tobacco growth for nutrient elements, has a good control effect on the root black rot of tobacco, can reduce the application of chemical pesticides and chemical fertilizers after being applied, and has the effects of soil conservation and tobacco quality improvement.

The invention provides a method for changing mountainous area yellow soil dry land into a paddy field. The method includes the steps that the range of the to-be-transformed paddy field is determined, surface soil is stripped, a substrate is leveled, field ridges are built, surface soil backfilling is carried out, and the field surface is leveled; the field is soaked, and pulping is carried out; rice seedling transplanting and tillage are carried out, and the field is subjected to rice seedling transplanting and daily management through a traditional mode. By means of the method, modern tillage is combined with a traditional cultivation technology so that fractures can be quickly plugged, water storage of the newly-built paddy field can be promoted, the problem that water storage is slow in a conventional method for changing dry land into paddy fields is solved, a high-quality plough bottom layer can be formed by the newly-built paddy field, forward succession of the newly-built paddy field is facilitated, and field weed root systems can be removed, so that the field surface becomes very smooth, and the later-period management of rice planting is facilitated. More importantly, the method can be used for overcoming the defect of soil puddling of the newly-built paddy field and effectively preventing stiff rice seedlings.

The invention belongs to the technical field of agricultural environment conservation and repair, and particularly discloses a conditioner for repairing farmland soil polluted by heavy metals and a preparation method. The processed raw materials such as quick lime, zeolite, sepiolite and calcium magnesium phosphate fertilizer are uniformly mixed proportionally, so as to obtain the conditioner. The conditioner provided by the invention is reasonable in formula, the method is feasible, the operation is simple, and the conditioner integrates the functions of repairing soil with heavy metal pollution, regulating and controlling the soil acidity and alkalinity, and the like, enables the effective state cadmium and lead in polluted farmland to be reduced by 22.4%-31.4% and 26.3%-43.5% respectively, enables the contents of cadmium and lead in rice to be reduced by 33.2%-38.9% and 29.4%-44.6% respectively, the pH of soil to be increased by 0.16-0.27 and the yield of rice to be improved by 3.6%-6.3%, and is applicable to various farmland soil seriously polluted by heavy metals and seriously acidified.

The invention relates to the technical field of saline-alkali land treatment, in particular to a saline-alkali land transformation device which comprises a frame, a drilling device and a sand filling device, the drilling device and the sand filling device are both arranged on the frame, the drilling device is used for drilling holes in the ground, and the sand filling device is used for filling sand into holes. The drilling device and the sand filling device are arranged for drilling and sand filling respectively, the soil surface and the soil deep layer can be directly connected, salt elimination is conducted on the saline-alkali soil, the physical structure of the saline-alkali soil can be obviously improved, the total salt content of the saline-alkali soil is reduced, the cultivated land quality is improved, and the device is low in cost, convenient, fast, efficient and suitable for popularization and application. And large-scale popularization is facilitated.

The invention discloses a package fertilization method for flue-cured tobacco planting use, and belongs to the technical field tobacco planting. According to the package fertilization method for the flue-cured tobacco planting use, two fertilizers, including a special compound fertilizer for tobacco and a special topdressing fertilizer for tobacco, are adopted at different growth stages in the process of tobacco planting, wherein the special compound fertilizer for the tobacco is an organic inorganic active fertilizer of which a total nutrient content of nitrogen, phosphorus and potassium is 23-28%, and an organic matter content is 20-25%; and the special topdressing fertilizer for the tobacco is an amino acid containing water-soluble fertilizer of which a total nutrient content of nitrogen, phosphorus and potassium is 46-53%. The package fertilization method for the flue-cured tobacco planting use disclosed by the invention enables fertilization according to the law of tobacco fertilizer demand, so that the package fertilization method is highly targeted; and moreover, the package fertilization method for the flue-cured tobacco planting use has the advantages of being capable of simplifying fertilization, saving labor, stabilizing yield of tobacco leaves, improving quality of tobacco leaves, saving cost, improving efficiency, improving quality of cultivated land, and ensuringhigh fertilizer utilization rate.

A stone removing and soil preparation machine for farmland comprises a frame, a soil shoveling mechanism, a soil separating mechanism and a gravel conveying mechanism. A soil loosening mechanism comprises a plurality of soil loosening grids, a soil loosening grid supporting rod and suspension rods at two ends of the supporting rod. The soil separating mechanism comprises an openable-closable separating chain, two belt pulleys, a soil separating chain driving shaft and a soil separating chain driving wheel. The gravel conveying mechanism comprises a conveyor belt, a conveyor belt folding arm, a hydraulic cylinder, a driving sprocket wheel, a driven sprocket wheel, a driven shaft, a belt pulley and a conveyor belt wheel. The stone removing and soil preparation machine performs sand removing on the farmland and simultaneously performs soil preparation operations of stubble elimination, deep loosening, soil crushing, etc. Furthermore the quality of the farmland can be effectively improved.

The invention discloses a fully water-soluble fulvic acid special organic fertilizer for tobacco and a preparation method of the fertilizer, and relates to the field of novel agricultural fertilizers. The preparation method comprises the following steps: adding a 50% molasses fermentation byproduct fulvic acid liquid into a reaction tank, heating to 68-90 DEG C, adding urea and stirring for 15-25 minutes; then, sequentially adding phosphamidon, amino acid powder, potassium nitrate, magnesium sulfate, ferrous sulfate, copper sulfate, zinc sulfate and borax to chelate, and stirring for 70-90 minutes at a constant temperature; spraying and drying the chelated liquid to powder and packaging and leaving factory; or after cooling the chelated liquid to 35 DEG C, adding functional bacteria, and packaging as a liquid fertilizer and leaving factory. The technical method disclosed by the invention is less in investment, simple in equipment and easy to popularize. The product makes a contribution to improving the quality of cultivated land, increasing the fertility of soil, promoting soil repair, ensuring the safety of agricultural product and producing organic tobacco.

The invention discloses an integrated system suitable for transportation operation in a hilly and mountainous area. The system comprises a rail transport line consisting of settling tanks and rails, and an operation vehicle running along the rail transport line, wherein the rail transport line is arranged along the slope surface of the hilly and mountainous area, in rail transport line sections transversely arranged at slope surface terrace belt pavements, the rails are lower than the terrace belt pavements or are flush with the terrace belt pavements, a Beidou system and an unmanned aerial vehicle are connected with a central control center to facilitate the design of the rail transport line, and a remote control module is wirelessly connected with the central control center for remotelycontrolling the operation of the operation vehicle. According to the system, the rails are arranged on a slope surface along the settling tanks to form the continuous rail transport line, passing or operation of agricultural machines such as a management all-in-one machine on terrace belts is not hindered, the rail transport line connects the plurality of terrace belts in series, land parcels arepromoted to be changed from small to large, short to long, steep to flat, and bent to straight, and be changed to be interconnected and intercommunicating, agricultural machine passing and operation conditions are practically improved, cultivated land quality is improved, and mechanical transformation in the hilly and mountainous area is promoted.

The invention provides a land-saving and water-saving technology for converting farmland drainage and irrigation patterns, wherein the land-saving and water-saving technology is low in cost and fine in use effect. The technical scheme includes that farmland canal system water conservancy is converted into pipeline water conservancy, the technology mainly includes project area reconnaissance, design, construction and operation, technology implementation includes four steps: firstly, adopting a multistage underground pipe land-saving technology; secondly, converting uncovered canal irrigation into pipeline irrigation; thirdly, building a multifunctional enhanced drainage station; fourthly, building a remote automatic regional water resource regulation system. Cultivated land is effectively saved, the area of the cultivated land can be increased, the quality of the cultivated land is improved, regional water resources are effectively and comprehensively regulated, and overall agricultural production capacity is improved. The land-saving and water-saving technology is fine in use effect, long in duration time and suitable for large-area popularization and use, and huge social benefits, economic benefits and ecological benefits are generated.

The present invention includes increases intermediate water producing factory, intermediate water supplying pipeline and domestic waste water recovering pipeline on the basis of available water supply pipeline; re-constructing city excrement draining and recovering pipeline and re-builds the city sewage processing factory into organic fertilizer plant. The city domestic sewage is drained in new pipeline for recovery and processing into intermediate water for secondary use in flushing toilet and other proper purpose. The city excrement is recovered and treated to produce marsh gas and organic fertilizer.