225 results about "Phosphorus fertilizer" patented technology

The invention relates to the technical field of leymus chinensis planting, in particular to a method for planting leymus chinensis in a salinized sand land, which is used for interplanting mousse winterplant in an oat land. The row spacing is 80 cm, the sowing depth is 1-1.5 cm, the sowing amount is 0.5 kg / mu, sowing is carried out in line, and 27.8 kg / mu urea (N is greater than or equal to 46%) is applied as a base fertilizer. Timely irrigation. The fertilizer is applied once in spring every year. A test nitrogen fertilizer is urea (N > = 46%), a phosphate fertilizer is triple superphosphate (P2O5 > = 44%), a potash fertilizer is potassium sulfate (K2O > = 52%), and timely irrigation is carried out. According to the invention, not only is a proper fertilizer combination provided, but also the growth, development and asexual reproduction capabilities of leymus chinensis are greatly improved. The planting effect of leymus chinensis can be effectively improved, the yield and quality of leymus chinensis are improved, and good practicability is achieved. Meanwhile, the formula is economical and reasonable, and is easy to popularize and apply.

The invention relates to the field of agricultural fertilizer and soil improvement, in particular to a biochar-based slow release fertilizer for improving acidified soil and a preparation method thereof.The biochar-based slow release fertilizer is prepared from, by mass, 60 parts of a biochar system, 5-12 parts of nitrogen fertilizer, 10-18 parts of phosphate fertilizer, 5-12 parts of potash fertilizer, 5-10 parts of an acid soil modifier and 2-5 parts of a slow release film; graded release of nutrients is achieved through a multi-aperture biochar system, the release rhythm is dynamically adjusted according to soil acidity in combination with a three-layer pH response type slow-release film, the problems that existing fertilizer nutrient release is not matched with crop requirements, and the persistence of acidified soil improvement is poor are solved, the pH and buffer capacity of acidified soil can be improved, the nutrient utilization rate is increased, and the soil quality is improved. And most of the raw materials are agricultural and forestry wastes and industrial byproducts, so that the soil conditioner meets agricultural requirements, is suitable for acidified soil, and has a wide application prospect.

The invention belongs to the technical field of biochar oxygen-releasing materials, and particularly relates to a biochar-based oxygen-releasing material for gleying soil improvement as well as a preparation method and application of the biochar-based oxygen-releasing material. The biochar-based oxygen release material is a CaO2 at phosphorus-rich biochar material obtained by taking modified phosphorus-rich biochar as a carrier and combining with calcium peroxide, and has remarkable beneficial effects in the field of gleying rice field improvement. According to the biochar-based oxygen release material, the mass fraction of calcium peroxide is remarkably increased, so that the oxygen release function of the material is enhanced, and the biochar-based oxygen release material has important significance for improving the ventilation condition of a rice field and promoting the growth of a rice root system. In the preparation process, raw materials such as dimethylbenzene and polyethylene which may cause soil pollution and ecological problems are avoided, and the environment-friendly concept is embodied. Meanwhile, the modified biochar not only serves as a carrier to improve the loading capacity of calcium peroxide, but also has the function of releasing a phosphate fertilizer, and is beneficial to improvement of the soil fertility of the rice field and increase of the rice yield.

The invention discloses a method for optimizing the fertilization amount of astragalus mongolicus. The method comprises the following steps: dividing land parcels, applying base fertilizer, transplanting astragalus membranaceus, applying nitrogen fertilizer, phosphate fertilizer and potash fertilizer in different dosages to astragalus membranaceus in each land parcel, sampling in the growing period, and measuring astragalus membranaceus root length, root diameter, underground part dry weight, astragaloside content and calycosin-7-glucoside as astragalus membranaceus quality indexes. According to the method, the total yield of astragalus mongholicus is measured in the harvesting period to serve as the yield index of astragalus mongholicus, a comprehensive membership function method is combined with a fertilizer effect equation to optimize the fertilization proportion, and the obtained optimal fertilization formula is that the fertilization amount proportion of N: P: K is 1: 1.5: 2.2, and the element proportion of N: P: K is 5: 2: 12. The yield and quality of astragalus membranaceus can be improved, and popularization significance is achieved.

The invention relates to the technical field of water-soluble fertilizers, in particular to a water-soluble organic fertilizer and a preparation method and application thereof.The water-soluble organic fertilizer is prepared from, by mass, 40-100 parts of basic organic raw materials, 5-15 parts of microbial fermentation additives, 10-20 parts of nutrient element supplements and 3-7 parts of synergists; the microbial fermentation additive comprises a compound microbial agent and a microbial growth carrier, the nutrient element supplement comprises a nitrogenous fertilizer, a phosphatic fertilizer, a potash fertilizer and medium trace elements, and the synergist comprises fulvic acid and alginic acid. According to the water-soluble organic fertilizer and the preparation method and application thereof, efficient utilization and accurate supply of nutrients are achieved, the growth requirements of crops in plant factories are met, meanwhile, resource utilization of organic waste is promoted, and sustainable development of the plant factories is promoted.

The invention discloses a special microbial fertilizer for cotton and a preparation method thereof, and belongs to the technical field of microbial fertilizers. The fertilizer is prepared from the following raw materials in parts by weight: 40-60 parts of a microbial agent, 80-100 parts of a microbial agent carrier, 40-60 parts of a nitrogen fertilizer, 30-50 parts of a phosphate fertilizer, 20-30 parts of a potassium fertilizer and 10-20 parts of a stabilizer, the microbial agent is prepared from nitrogen-fixing paenibacillus mucilaginosus MSSW01, bacillus nissi and streptomyces widermomole, and the microbial agent is prepared from bacillus mucilaginosus MSSW01 and streptomyces widermomole. The stabilizer is prepared from roxburgh rose extract, soybean protein isolate and gamma-aminobutyric acid according to the mass ratio of 2: 1: (0.2-0.5). By screening and optimizing three beneficial microbial strains and combining the synergistic effect of raw material components in a specific ratio, the yield and quality improvement of cotton can be remarkably promoted, and meanwhile, the occurrence rate of common diseases of cotton is effectively reduced.

The invention discloses application of a phosphorus-solubilizing fungus solid bacterial fertilizer in promoting crop growth, and belongs to the field of environment and the technical field of agriculture. The solid bacterial fertilizer comprises penicillium deserticola and / or penicillium fistulosum, the penicillium deserticola and / or penicillium fistulosum are compounded according to the proportion of 1: 1, agricultural waste mushroom bran serves as a main carrier, and the inoculum size of a bacterial solution is 9 wt%. The bacterial fertilizer can effectively activate insoluble phosphorus in soil, significantly improve absorption and utilization of phosphorus by crops, promote plant growth, increase root length and biomass, increase leaf chlorophyll content, enhance photosynthesis capability, reduce dependence on chemical phosphate fertilizer and realize agricultural waste recycling, and has the advantages of high efficiency, environmental protection and low cost.

The invention provides an organic-inorganic-microbial composite water and fertilizer retention soil conditioner and a preparation method thereof. The organic-inorganic-microbial composite water and fertilizer retention soil conditioner comprises an organic material, a microbial agent and composite phosphate fertilizer slow-release carboxylated modified hydrogel microbeads (inorganic material), the compound phosphate fertilizer slow-release carboxylated modified hydrogel microbeads are mixed with organic materials such as humic acid and a microbial agent, so that the phosphorus slow-release effect and the soil water absorption and retention effect are further improved, and the compound phosphate fertilizer slow-release hydrogel microbeads have high water absorption and retention and fertilizer slow-release functions, can effectively improve soil, increase the soil water retention and phosphate fertilizer effectiveness, improve the enzyme activity of the soil and improve the fertilizer utilization rate. Soil moisture and fertility loss is reduced; the raw materials are wide in source, low in cost, safe and harmless, the preparation process is simple, and the prepared soil conditioner is harmless to the soil environment, has high water absorption and water retention and a fertilizer slow release function, can effectively improve soil and can be used for enhancing the water retention and physicochemical properties of the soil.

The invention discloses a high-calcium suspension fertilizer as well as a preparation method and application thereof, and relates to the technical field of chemical fertilizer production, the high-calcium suspension fertilizer comprises the following components in parts by weight: 20-30 parts of a macroelement fertilizer, 10-15 parts of a medium element fertilizer, 3-5 parts of a microelement fertilizer, 0.5-3 parts of an auxiliary agent and 30-50 parts of deionized water; the macroelement fertilizer is prepared from 30-50 parts of nitrogen fertilizer, 20-30 parts of phosphate fertilizer and 15-20 parts of potash fertilizer; the medium element fertilizer is modified nano calcium carbonate and magnesium carbonate; the trace element fertilizer is prepared from zinc amino acid, sodium tetraborate, ferric sodium ethylenediaminetetraacetate, molybdenum sodium ethylenediaminetetraacetate, manganese sulfate monohydrate and copper sulfate pentahydrate. Therefore, the nano calcium carbonate can be quickly absorbed by the plants, so that calcium ions can be supplemented in time in the growth process of the plants, and the growth of the plants is accelerated.

The present invention provides an environmentally friendly slow-release compound fertilizer, aiming to provide an environmentally friendly slow-release compound fertilizer with controllable release rate and high cost-effectiveness. The compound fertilizer is composed of calcium magnesium phosphate fertilizer, urea, potash fertilizer, monoammonium phosphate, borax, zinc sulfate, glycine iron, ammonium molybdate, glycine copper, liquid ammonia, sulfuric acid, liquid paraffin and a slow-release agent, wherein the potash fertilizer is one or two of potassium sulfate and potassium chloride. The present invention also provides a preparation method of an environmentally friendly slow-release compound fertilizer, comprising four steps of preliminary coating, uniform mixing, secondary coating granulation and fluidized bed reaction film formation. The slow-release agent is composed of castor oil, polyoxypropylene triol, polymerized MDI and modified silicon dioxide, and the modified silicon dioxide is obtained by specific chemical treatment. The environmentally friendly slow-release compound fertilizer has the advantages of uniform nutrient release, long effective release period, and environmental friendliness, is suitable for improving fertilizer utilization and reducing environmental pollution, and has good market application prospects.

The invention relates to the technical field of soil ecological restoration and farmland cultivation management, in particular to an ecological regulation and control method for synergistically reducing compound obstacles of yellow soil rice-oil rotation cropland. The method is implemented by stages according to agricultural time: S1, mixing crushed straw, a composite functional microbial agent, a decomposed organic fertilizer and a calcium magnesium phosphate fertilizer into 0-15cm before rice transplanting; s2, after the rice is harvested, deep scarification is conducted by 20-25 cm, and a ridge culture structure is constructed; s3, interplanting astragalus sinicus after the ridges are built and before the oilseed rape is sown; s4, after the oilseed rape is harvested, the oilseed rape straw and the astragalus smicus are turned and pressed by 20-25 cm, lime is applied, and high water holding capacity is maintained in a short time; and S5, interannual circulation. Through microorganism-structure-nutrient coupling, thin, plate and sticky yellow soil is relieved synergistically, aggregate and air permeability are improved, root growth is promoted, and stable yield is increased.

The invention relates to the technical field of water-soluble fertilizer production, in particular to a slow-release polyglutamic acid water-soluble fertilizer and a preparation method thereof. The slow-release type polyglutamic acid water-soluble fertilizer is prepared from the following raw materials in parts by mass: 2 to 10 parts of polyglutamic acid master batch, 18 to 28 parts of nitrogen fertilizer, 12 to 22 parts of phosphorus fertilizer, 15 to 20 parts of potassium fertilizer, 4 to 16 parts of medium trace elements, 9 to 15 parts of polyglutamic acid fermentation liquor and 35 to 60 parts of slow-release coating agent, the slow-release coating agent comprises the following raw materials in parts by mass: 6-13 parts of lecithin, 2-4 parts of sodium thiosulfate, 8-18 parts of vegetable oil and 19-40 parts of a zinc oxide-loaded cellulose / chitosan-based composite material; according to the slow-release type polyglutamic acid water-soluble fertilizer and the preparation method thereof, the polyglutamic acid water-soluble fertilizer is subjected to coating treatment, so that nutrients in the fertilizer can be slowly and continuously released, the effective supply time of the nutrients is prolonged, and the utilization rate of the fertilizer is increased.

The invention discloses a preparation and use method of a microbial inoculum for promoting ecological restoration of degraded grassland. The microbial inoculum for promoting the ecological restoration of the degraded grassland is piriformospora indica. The method comprises the following three key steps: 1) activation and culture of piriformospora indica and preparation of fermentation liquor; (2) preparing piriformospora indica application liquid on site according to the volume ratio of fermentation liquid to water of 1: 10; and 3) spraying an application liquid on the ground after raining in June to July, and applying a nitrogen fertilizer and a phosphate fertilizer in a combined manner. The piriformospora indica preparation disclosed by the invention can promote nutrient absorption of grassland plant roots, improve the nutrient utilization rate and enhance the stress resistance of plants, so that the restoration of degraded grassland is promoted.

The invention discloses a method for interplanting vicia villosa with ecological balance in an orchard. The method comprises the following steps: (1) selecting the orchard; (2) orchard cleaning and soil preparation; (3) treatment before sowing: soaking the vicia villosa seeds with warm water of 60 DEG C for 10-12 hours until the seeds are broken and germinated; (4) sowing time and sowing quantity: sowing in spring or autumn, wherein the sowing quantity per mu is 2.6-3.4 kg; (5) planting method: deeply ploughing soil, applying barnyard manure and phosphate fertilizer before sowing, controlling the line spacing of drill sowing to be 30-45 cm, and covering soil and pressing after uniformly sowing; (6) water and fertilizer management: watering and fertilizing after sowing, and dressing plant ash or phosphate fertilizer for 1-2 times in the growing period. The method can increase soil nutrients, improve the soil structure, preserve water and fertilizer, reduce the application of chemical fertilizers and pesticides, improve the ecological environment of the orchard, promote the growth of fruit trees, improve the yield and quality of fruits, and enhance the stability and sustainability of the ecological system of the orchard.

A system of integrated water and fertilizer planting and industrial collaboration for a terraced field in an ecologically fragile area includes a hardware part, a software part, a water balance and osmosis model, a water and fertilizer optimization and adjustment model, and an industry collaboration model. The hardware part includes a terraced field intelligent irrigation equipment, soil moisture sensors, a meteorological station, a fertilizer application device, an underground water storage system, and a solar power supply. The system introduces the water balance and osmosis model to effectively manage water resources in terraced field. By integrating data from the soil sensors and meteorological station, it automatically optimizes the methods of irrigation and fertilization, preventing water waste and soil erosion. The water and fertilizer optimization and adjustment model can dynamically adjust the application of nitrogen, potassium, and phosphorus fertilizers based on real-time environmental data and crop requirements.

The invention provides a method for preparing phosphorus-rich biochar through sludge pyrolysis-calcination two-step heat treatment, and belongs to the technical field of harmless treatment and resource utilization of municipal sludge. The preparation method comprises the following steps: (1) heating and drying municipal sludge, grinding, crushing and sieving to obtain sludge particles; (2) pyrolyzing the sludge particles in the step (1) in a microwave pyrolysis device, and cooling to obtain sludge semicoke; and heating and calcining the sludge semicoke in the step (2) in a nitrogen or carbon dioxide atmosphere, and cooling to obtain the phosphorus-rich biochar. Compared with commercial activated carbon, the phosphorus-rich biochar prepared by the method disclosed by the invention is rich in a large amount of phosphorus element, the source is more environment-friendly, and the harm caused by mass production and accumulation of municipal sludge is solved; the phosphorus-rich biochar disclosed by the invention is more practical, can be applied to grassland gardens instead of phosphate fertilizer, or can be mined as a phosphate ore source instead of phosphate ore.

The invention discloses a nitrogenous fertilizer for cigars, a fertilizer and application. A nitrogenous fertilizer for cigars comprises a nitrate nitrogenous fertilizer and an ammonium nitrogenous fertilizer, and the molar ratio of the nitrate nitrogenous fertilizer to the ammonium nitrogenous fertilizer is (0.66-1.50): 1. The nitrate nitrogen fertilizer is potassium nitrate and / or calcium nitrate, and the ammonium nitrogen fertilizer is ammonium bicarbonate. The molar ratio of the nitrate nitrogen fertilizer to the ammonium nitrogen fertilizer is 1: 1. The invention also provides a fertilizer for cigars. The fertilizer comprises any nitrogen fertilizer for cigars. The fertilizer comprises the following components in parts by weight: 20-60 parts of decomposed oil cake, 20-40 parts of nitrogen fertilizer, 10-30 parts of phosphate fertilizer and 30-60 parts of potash fertilizer. The thoroughly decomposed oil cake is a thoroughly decomposed sesame cake. The nitrogenous fertilizer can improve the soil environment of the tobacco plant root zone, is beneficial to increasing the content of acid phosphatase in the soil, promotes the root development of the tobacco plant, increases the number of effective leaves, and can balance chemical components in cigar leaves.

The invention relates to a planting method for covering rice with a biodegradable film in a cold region. Comprising the following steps: (1) dry seedling raising: sowing 20-30g of seeds in each square meter of seedbed by adopting drill sowing or broadcast sowing; (2) preparing a compartment surface, turning over the soil, and loosening the soil; (3) applying a base fertilizer at one time, and applying 7-8 kg / mu of a nitrogen fertilizer, 2-4 kg / mu of a phosphate fertilizer, 3-5 kg / mu of a potassium fertilizer and 1.0-1.5 kg / mu of a zinc fertilizer to the compartment surface; (4) covering a film on the compartment surface, and covering a biodegradable film to be tightly attached to the soil 2-3 days after the fertilizer is applied; (5) transplanting plantlets: transplanting the plantlets when 3-4 true leaves grow on each seedling; (6) water management: after rice transplanting, water is kept in furrows, and no water exists on film surfaces; drying the field in the vigorous tillering stage; (7) timely harvesting. The growth conditions of heat tension, short rice growth period and limited yield potential in the northeast cold region in China are solved, temperature increasing, water retention and fertilizer saving can be achieved, and the comprehensive benefits of rice planting in the northeast cold region are improved.

The invention discloses a corn and soybean strip-shaped composite planting method, and belongs to the technical field of agricultural planting. Comprising the following steps: step 1, preparing land: crushing the soil by using mechanical equipment, and uniformly releasing a nitrogen-phosphorus fertilizer into the dry land; 2, ridging and film mulching are conducted, after land preparation is completed, ridging is conducted, the ridge width is 160 cm, the ditch width is 60 cm, and the ridge height is 20 cm; a biodegradable weeding mulching film is selected as the mulching film; step 3, sowing management: corn sowing operation is carried out in late May, soybean sowing operation is carried out in mid-late June, and a planting mode is corn and soybean intercropping planting; the corn is planted on the ridge edge, and the soybean is planted on the ridge; 4, harvesting management, wherein harvesting is conducted after the corn and the soybeans are mature. The mulching film is covered with a biodegradable weeding mulching film; in the composite planting process, a continuous weeding barrier can be formed, weed growth is remarkably inhibited, and the defects of mechanical weeding and chemical weeding in the prior art can be overcome.

The invention belongs to the technical field of water-soluble composite bio-organic fertilizers, and discloses a micromolecular carbon total-nutrient composite bio-organic fertilizer for conditioning soil and a preparation method of the micromolecular carbon total-nutrient composite bio-organic fertilizer. The organic fertilizer is prepared from the following raw materials in parts by mass: 40 to 48 parts of coal, 4.3 to 7 parts of nitric acid, 8.5 to 13 parts of potassium hydroxide, 20 to 35 parts of nitrogen fertilizer, 6.5 to 10 parts of phosphate fertilizer, 0.3 to 0.6 part of dispersing agent, 1.2 to 2.0 parts of amino acid, 0.04 to 0.08 part of trace element and 0.25 to 0.55 part of fungus bag. The prepared organic water-soluble fertilizer is high in humic acid content which is more than 4 times of the existing industrial standard NY1106-2010, good in water solubility, convenient to use, capable of being applied in a flushing mode, a drip irrigation mode, a spray irrigation mode, a flying prevention mode and the like, simple in technological process, free of dust, waste water, waste gas and waste residues in the production process, environmentally friendly, efficient, easy to operate and suitable for large-scale industrial production.

This invention relates to the field of fertilizer technology, specifically to a disease-resistant microbial compound fertilizer and its preparation method. The disease-resistant microbial compound fertilizer comprises the following raw materials in parts by weight: 10-15 parts nitrogen fertilizer, 10-20 parts phosphorus fertilizer, 6-10 parts potassium fertilizer, 50-70 parts fermented organic matter, 8-12 parts fertilizer efficiency enhancer, 5-8 parts disease-resistant composition, and 6-10 parts chitosan oligosaccharide. The disease-resistant composition is a mixture of sodium selenite and potassium humate in a weight ratio of 1:1.5-2.5. The microbial compound fertilizer prepared by this invention not only achieves a combination of rapid and long-lasting effects, improving fertilizer utilization, but also increases organic matter, activates fixed phosphorus and potassium elements in the soil, and improves the micro-ecological environment. Furthermore, through the synergistic effect of Trichoderma harzianum inoculum, Paecilomyces lilacinus, the disease-resistant composition, and chitosan oligosaccharide, it exhibits good inhibitory effects on soil-borne diseases and some foliar diseases, promoting robust crop growth and improving both crop yield and quality.

The invention relates to the technical field of water-soluble fertilizers, in particular to a composite macroelement water-soluble fertilizer and a preparation method of the composite macroelement water-soluble fertilizer. Comprising the following components in parts by mass: 15-20 parts of a water-soluble nitrogen fertilizer, 25-40 parts of a water-soluble potassium fertilizer, 17-22 parts of a water-soluble phosphate fertilizer, 7-15 parts of a medium element nutritional agent, 0.2-0.8 part of a trace element nutritional agent, 8-12 parts of a nutrition enhancer, 3-9 parts of a chelating agent, 0.3-1 part of a chelating aid and 0.1-0.5 part of a wetting agent. The compound macroelement water-soluble fertilizer provided by the invention can effectively improve the utilization rate of nutrients and improve the yield and quality of crops.

The invention discloses a shaping substrate for plant seedling raising and planting, and relates to the technical field of planting substrates, the shaping substrate for plant seedling raising and planting comprises the following components by mass: coconut fiber; fine coco coir; peat soil; an organic fertilizer; bark; straw powder; vermiculite; perlite; saw dust; calcium magnesium phosphate fertilizer; pond sludge; leaf mold; rice chaff ash; hard particles; and a plant growth regulator. According to the substrate disclosed by the invention, the original loose substrate is subjected to standardized shaping, and standardized production, optimized structural design and efficient resource utilization are utilized, so that high efficiency, environmental protection and economization of plant seedling culture and planting are realized, and the production efficiency, the resource saving rate and the plant growth quality are remarkably improved; meanwhile, diseases are reduced, pesticide use is reduced, the operation environment is improved, and healthy development of roots is promoted.

The present application relates to the technical field of corn fertilization, and provides a corn whole growth period precise fertilization method, which comprises the following steps: S1, applying base fertilizer containing nitrogen fertilizer, phosphorus fertilizer, potassium fertilizer, brown algal polysaccharide, calcium ammonium nitrate, zinc citrate, potassium humate and gamma-polyglutamic acid between corn rows when corn is sowed; S2, spraying leaf fertilizer containing potassium dihydrogen phosphate, magnesium sulfate, alginic acid and polyaspartic acid during the corn filling stage; the base fertilizer is slow-release fertilizer, and after granulation, the base fertilizer is coated with a polyester composite layer and a wax layer in sequence. According to the present application, the base fertilizer is made into double-layer coated slow-release particles and applied with sowing, the outer layer of furfural / wax forms a hydrophobic barrier to inhibit the burst release and salt damage during the seedling stage, and the inner layer of polyester composite layer forms controllable water channels and slowly hydrolyzes with time, so that nutrients are supplied in stages in a platform mode during the corn growth period, and precise fertilization and efficient utilization are achieved during the whole growth period.

The invention relates to the technical field of fertilizers, in particular to a microbial amino acid-containing water-soluble fertilizer and a preparation method thereof. The method comprises the following steps: providing a first corn steep liquor and a second corn steep liquor; adding a Trichoderma harzianum-Purpureocillium lilacinum complex microbial inoculant and lactic acid bacteria into the first corn steep liquor, and carrying out first fermentation to obtain a first fermentation broth; mixing the first fermentation liquor with the second corn steep liquor to obtain mixed corn steep liquor; adding bacillus subtilis into the mixed corn steep liquor, and carrying out second fermentation to obtain second fermentation liquor; and sequentially adding a nitrogen fertilizer, a phosphate fertilizer and a potash fertilizer into the second fermentation liquor to obtain the water-soluble fertilizer containing microbial amino acids. The microbial amino acid-containing water-soluble fertilizer prepared by the preparation method provided by the invention can effectively improve the yield and quality of crops, improve the soil structure, enhance the soil fertility, promote the root development of the crops and improve the resistance of the crops to adversity.

The invention discloses a method for recovering vegetation of a mildly-degraded Coilin grassland. The method comprises the following steps: S1, investigating plant community characteristics and biomass; s2, determining the quality of the forage grass in the plant community; s3, collecting a soil sample; s4, reseeding: grass seeds are reseeded on the mildly degraded Coilin grassland, the reseeded grass seeds are agropyron perennioides and adsura adsura, and the mass ratio of the agropyron perennioides to the adsura adsura is (6-8): (2.5-3.5); the reseeding amount is 10-20 kg / hm < 2 >; s5, fertilization: applying a fertilizer bag, the fertilizer bag being a nitrogen-phosphorus-potassium mixed fertilizer, the nitrogen-phosphorus-potassium mixed fertilizer comprising a nitrogen fertilizer, a phosphorus fertilizer and a potash fertilizer, according to the plant community conditions of the mildly degraded Coilsein grassland, through reseeding and reasonable fertilization, the monoennial and biennial plants, perennial gramineae, hybrid grass and perennial leguminous plants of the Coilsein grassland can all grow, the yield of the Coilsein grassland is increased, and the yield of the Coilsein grassland is increased. And the pH value of the soil tends to be neutral, so that the mildly degraded Coilin grassland vegetation is recovered.

The application belongs to the field of plant genetic engineering, and particularly relates to application of a rice-derived OsDREB1 gene in enhancing the low-phosphorus stress tolerance of soybeans. A recombinant expression vector of the OsDREB1 gene is constructed, and the soybean plants are transformed by using an agrobacterium-mediated method to obtain a transgenic soybean line with stable heredity. It is found through experiments that overexpression of the OsDREB1 gene in soybeans can enhance the low-phosphorus tolerance of the soybeans, and under the same conditions, the number of pods per plant and the weight of 100 seeds of the transgenic plants are higher than those of a wild control group. The growth performance of soybeans in low-phosphorus soil is improved by using genetic engineering technology, and a new strategy for reducing the dependence of agriculture on phosphorus fertilizer is provided.

The invention belongs to the technical field of water-soluble granular fertilizers, and particularly relates to a water-soluble granular fertilizer suitable for a drip irrigation system and a preparation method of the water-soluble granular fertilizer. Comprising the following raw materials in parts by weight: 20-40 parts of a nitrogen fertilizer, 15-30 parts of a phosphate fertilizer, 20-40 parts of a potassium fertilizer, 10-20 parts of organic matters, 0.5-1 part of soybean peptides, 1-4 parts of an adhesive and 2-5 parts of an anti-sticking agent. The adhesive is prepared from isomaltitol, dopamine hydrochloride and water; the anti-sticking agent is prepared from rhamnolipid, acidic polysaccharide, a polyethylene glycol-polycaprolactone copolymer and water. The water-soluble granular fertilizer provided by the invention has relatively high yield, relatively low caking rate and relatively high dissolution rate.

A selenium-rich Chinese wolfberry planting method comprises the steps that Chinese wolfberry tree planting pits are dug in a selected selenium sand melon planting area, and soil layers and gravel and gravel layers near the Chinese wolfberry tree planting pits are classified and collected in the length extension direction of Chinese wolfberry tree plant spacing, so that a fertilizer and soil mixing platform is formed on one side of each Chinese wolfberry tree planting pit; putting the Chinese wolfberry tree plants into the Chinese wolfberry tree planting holes, scattering a predetermined amount of decomposed organic fertilizer and phosphate fertilizer on the fertilizer-soil mixing platform, scattering the collected soil on the organic fertilizer and phosphate fertilizer on the fertilizer-soil mixing platform, and then backfilling the organic fertilizer, phosphate fertilizer and soil on the fertilizer-soil mixing platform into the Chinese wolfberry tree planting holes; root fixing water is poured into the lycium barbarum tree planting pits; the gravel and gravel layer is backfilled on the lycium barbarum tree planting holes and the fertilizer and soil mixing platform, so that lycium barbarum tree plants are stably planted, the air permeability of soil around the lycium barbarum trees is guaranteed, and the soil moisture conservation effect is improved; during field management of the Chinese wolfberry trees, organic selenium fertilizer is sprayed on leaf surfaces in the growing season of the Chinese wolfberry trees.

The invention discloses a special silicon-containing compound fertilizer for rice and a preparation method thereof, and belongs to the technical field of silicon-containing compound fertilizers, the special silicon-containing compound fertilizer for rice comprises the following raw materials by mass: 15-25 parts of a nitrogen fertilizer, 15-20 parts of a phosphate fertilizer, 10-15 parts of potassium sulfate, 8-12 parts of a modified diatomite / nanocellulose nested compound and 10-20 parts of humic acid, the raw materials of the modified diatomite comprise diatomite and an inorganic modifier in a mass ratio of 1: (1.2-1.8), and the inorganic modifier comprises one or a combination of calcium chloride and zinc sulfate. The diatomite subjected to modification treatment can form a nested structure with the nanocellulose, the mesoporosity of the diatomite is effectively improved, more micropores and mesopores are formed in the diatomite, the immobilization amount of nutrients is increased, and the nanocellulose can also provide mechanical support and more adsorption sites for the pore structure of the diatomite, so that the adsorption efficiency of the diatomite is improved. A stable pore network is effectively maintained, and the fertilizer efficiency of the compound fertilizer is improved.