2228results about "Potassium fertilisers" patented technology

A high-nutrient and high-activity chemical fertilizer-biological compound fertilizer, and a preparation method and application thereof are provided. The high-nutrient and high-activity chemical fertilizer-biological compound fertilizer includes an inorganic chemical fertilizer and a microbial agent. The chemical fertilizer-biological compound fertilizer has nutrient contents of nitrogen, phosphorus, and potassium of greater than 40% and a viable number of microorganisms of 200 million cfu / g or more. The chemical fertilizer-biological compound fertilizer further includes a microbial protectant, and a mass ratio of the microbial protectant to the microbial agent is ≥1.

The invention relates to serratia marcescens XJ108 and application thereof, and belongs to the technical field of microorganisms. The serratia marcescens XJ108 is preserved in the China General Microbiological Culture Collection Center (CGMCC), the preservation number is CGMCC No.29557, the preservation date is January 10, 2024, and the address of the preservation institution is No.3, Yard 1, Beichen West Road, Chaoyang District, Beijing. The invention also provides application of the serratia marcescens XJ108 in acid environment, alkaline environment, high salinity environment and high chemical fertilizer environment soil tolerance and plant growth promotion. The serratia marcescens XJ108 provided by the invention has certain biological safety; meanwhile, the plant growth promoting function is achieved; and various extreme soil environments can be tolerated.

The invention relates to a multifunctional soil conditioner for yellow sand soil and a preparation method thereof, and is characterized in that the soil conditioner is a granular fertilizer and comprises a core layer and a coating layer wrapping the core layer, and the mass ratio of the core layer to the coating layer is (3-5): (60-85); wherein the core layer is prepared from the following raw materials in parts by weight: 25 to 30 parts of ground phosphate rock, 15 to 25 parts of insoluble potassium mineral powder, 5 to 10 parts of humic acid and 15 to 20 parts of microbial agent; the component of the coating layer is modified sodium alginate. The modified sodium alginate outer envelope prepared by the invention has a uniform pore structure, and can store water, provide a microenvironment required by reproduction of beneficial microorganisms in soil, increase the content of the beneficial microorganisms in the soil and gradually decompose and release the phosphorus-potassium fertilizer.

The invention discloses a polymeric phosphorus slow-release compound fertilizer and a preparation method thereof, and relates to the technical field of agricultural fertilizers, the polymeric phosphorus slow-release compound fertilizer comprises an inner core and a coating layer, wherein the inner core is prepared from the following components in percentage by weight: 30 to 50 percent of modified ammonium polyphosphate, 15 to 25 percent of urea-formaldehyde slow-release nitrogen, 10 to 20 percent of potassium humate-coated potassium chloride, 2 to 5 percent of amino acid chelated trace elements and 1 to 3 percent of seaweed extract; through the synergistic effect of the citric acid modified ammonium polyphosphate and the three layers of functional envelopes, the phosphorus utilization rate is increased, and the problem that phosphorus is easily fixed by soil is effectively solved. The fertilizer can automatically adapt to different soil environments through the pH responsive coating design, and 30-40% of phosphorus can be quickly released in acid soil to meet the early needs of crops; phosphorus is continuously supplied through activation of the phosphate solubilizing bacteria under a neutral condition; and the fertilizer efficiency is prolonged to 120-150 days by virtue of an outer layer slow release mechanism in an alkaline environment.

The invention discloses a microbial synergistic slow-release fertilizer and a preparation method thereof. The fertilizer comprises an organic-inorganic mixture, microbial agent microcapsules and a coating layer. The preparation method mainly comprises the following steps: firstly, through a sectional fermentation process, mixing corn straws with humic acid, adding an improved microbial inoculum for fermentation, and premixing biochar with ammonium dihydrogen phosphate and potassium sulfate to improve the nutrient adsorption efficiency; embedding beneficial microorganisms such as nitrogen-fixing bacteria, phosphate solubilizing bacteria and the like with the seaweed extract to prepare a microcapsule fungicide with high survival rate, and forming slow-release fertilizer particles with the organic-inorganic mixed material through a specific granulation process; and finally, coating the surfaces of the particles, forming a basic slow-release film by using a sodium alginate-diatomite mixed solution, and further wrapping environment-sensitive hydrogel, the microbial synergistic slow-release fertilizer disclosed by the invention is particularly suitable for planting crops such as rice in saline-alkali soil, and has remarkable agricultural application value and environmental friendliness.

The invention relates to a tea garden acidic soil conditioner, which is prepared from the following raw materials in parts by weight: 10 to 15 parts of alkaline conditioning materials, 10 to 30 parts of honey pomelo waste fruit fermented organic fertilizers, 4 to 6 parts of alkali modified biochar, 2 to 4 parts of biostimulant, 3 to 5 parts of graft modified chitosan, 0.25 to 0.6 part of dicyandiamide, 0.5 to 1 part of complex microbial inoculants, 0.25 to 0.5 part of binding agents and 0.006 to 0.012 part of trace element substances. The alkaline conditioning material is a mixture of magnesium-containing mineral substances and shell powder in a mass ratio of 10: (2-5); the graft modified chitosan is obtained by grafting and modifying chitosan through an unsaturated phosphorus-containing monomer and an unsaturated nitrogen-sulfur-containing monomer, and the grafting rate is 20-30%; the biostimulant comprises mineral source fulvic acid, magnesium sulfate, monopotassium phosphate and a seaweed extract. The tea garden acidic soil conditioner provided by the invention can effectively improve tea garden soil, so that the yield and quality of tea leaves are obviously improved.

The invention relates to the technical field of fertilizers, and discloses a coating material, a preparation method and application of the coating material in a trace element coating for potassium chloride particles. The preparation method comprises the following steps: reacting isophorone diisocyanate with polycaprolactone diol, tartaric acid and dimethylglyoxime to prepare a polyurethane prepolymer, continuously reacting the polyurethane prepolymer with chitosan oligosaccharide Schiff base to obtain chitosan oligosaccharide modified polyurethane, and mixing the chitosan oligosaccharide modified polyurethane, a cross-linking agent, silane modified isocyanate and a trace element solution to obtain the coating material. The coating material is good in mechanical property, contains trace elements, has a controlled release effect on the potassium chloride granulated fertilizer, and can be applied to the potassium chloride granulated fertilizer as a trace element coating.

The invention discloses a special chicken manure fermented fertilizer for pear trees as well as a preparation method and application thereof and belongs to the technical field of fertilizers. The chicken manure fermented fertilizer is prepared from the following raw materials in percentage by weight: 70 to 85 percent of fresh chicken manure, 5 to 10 percent of plant ash, 5 to 10 percent of fly ash, 1 to 4 percent of persulfate, 0.5 to 1 percent of EM fungicide and 3 to 5 percent of modified biomass charcoal, wherein the modified biomass charcoal is rice straw biomass charcoal modified by acylated chitosan and bamboo charcoal biomass charcoal, and the mass ratio of the rice straw biomass charcoal to the bamboo charcoal biomass charcoal is (2-4): 1. The special chicken manure fermented fertilizer for pear trees can reduce soil hardening, improve the air permeability and water and fertilizer retention of soil, and reduce the contents of heavy metals and antibiotics in the soil, thereby achieving the effects of increasing the yield of fruits and improving the quality of the fruits.

The invention discloses an environment-friendly slow release fertilizer and a preparation method thereof, and belongs to the technical field of fertilizer mixture preparation. The preparation method comprises the following steps: mixing and stirring a mussel extract-polysaccharide-nitrogen fertilizer complex, an inorganic fertilizer and water according to a weight part ratio of (1-2): (5-7): (15-23), heating to 50-60 DEG C to form a dispersion solution, mixing and stirring the dispersion solution and a calcium salt according to a weight part ratio of 1: (0.005-0.01), cooling to 20-25 DEG C, and reacting for 20-24 hours to obtain a viscous mixture; and drying, dewatering and crushing the viscous mixture to obtain the environment-friendly slow-release fertilizer. According to the environment-friendly slow-release fertilizer, the mussel extract with a good adhesion effect and the carboxymethyl cellulose or the hyaluronic acid with biocompatibility are used as carriers, through the synergistic cooperation of an amide structure, an imine structure and metal coordination, wrapping of a nitrogen fertilizer and an inorganic fertilizer is achieved, and finally the environment-friendly slow-release fertilizer is obtained.

The invention discloses a clean production process of a blended fertilizer, which comprises the following steps: preparing and selecting raw materials; performing primary granulation on different raw materials to obtain uniform granular raw materials; performing closed ventilation storage on the granular raw materials; proportioning and metering the granular raw materials; mixing and stirring; finally, packaging is carried out, 4-5 mm particles obtained after the raw materials are subjected to extrusion forming through a pair of rollers and subjected to primary granulation are consistent in appearance state, air in the raw materials is removed through extrusion, gaps are compressed, the density and specific gravity of the formed particles tend to be uniform, and the product quality is improved. Blending layering caused by particle size, density difference and different adsorption capacities cannot occur when the raw materials are blended, the blended compound fertilizer meets the international general blending fertilizer proportioning principle, the completely-homogenized blending fertilizer quality requirement can be met, the processing cost is saved, the production efficiency is improved, and the production cost is reduced. And the problem of caking of the raw materials is effectively solved.

The invention discloses an acid soil improvement type organic fertilizer and a preparation method thereof, and belongs to the technical field of microorganisms. The organic fertilizer is prepared from chicken manure, urea, a microbial agent, nicotine biochar, a synergist, silicon-calcium powder, biochemical potassium fulvate, alkaline residues, a modifier, turpentine and plant ash. The nicotine biochar is synergized by using a synergist, the alkaline residues are subjected to hydrophobic selective modification by using a modifier, and the alkaline residues, the microbial agent, biochemical potassium fulvate, silicon-calcium powder and plant ash synergistically play a role in improving the acid soil. The modified nicotine biochar contains a large amount of nicotine, and has strong heavy metal adsorbability and enhanced fertilizer efficiency under the action of a synergist; after the alkaline residues are modified by the modifier, the structure is decomposed into fine fragments, the degree of generating precipitates by aluminum ions and alkaline substances in the alkaline residues is promoted, after hydrophobic treatment, aluminum precipitates are more stable, aluminum toxicity can be effectively relieved, meanwhile, the slow release performance is achieved, acid soil is improved, and fertility is provided for the acid soil.

The invention discloses a production method of distiller's grain fermentation liquid fertilizer specially applied to roxburgh rose. The distiller's grain fermentation liquid fertilizer is prepared bythe step of evenly mixing 50 to 80 parts of distiller's grain fermentation extracting solution, 0.5 to 1 part of microelement, 5 to 10 parts of seaweed meal, 5 to 10 parts of natural active organism,2 to 5 parts of potassium bicarbonate, 2 to 5 parts of natural active organism and 2 to 5 parts of natural surface active agent. A preparation method of the distiller's grain fermentation extracting solution comprises the steps: evenly stirring 50 to 80 parts of distiller's grain, 50 to 150 parts of rice washing water, 1 to 2 parts of EM microflora fermentation liquid and 0.5 to 1 part of sugar, performing composting fermentation at the room temperature to obtain a distiller's grain fermentation material, stirring and extracting through a sodium carbonate water solution, filtering and performing evaporation and condensation on obtained filtrate until the density is 1.1 to 1.2 to obtain distiller's grain fermentation extracting solution. The distiller's grain fermentation liquid fertilizerdisclosed by the invention has a good use effect, meanwhile can effectively prevent pest and disease damage to the roxburgh rose and is high-efficiency environment-friendly liquid fertilizer.

The invention discloses a P.megatherium YC5 strain, a fungicide and application thereof, and belongs to the technical field of sustained and controlled release fertilizers. According to the present invention, the Priestia megaterium YC5 capable of degrading and promoting nutrient release of the nutrient polymerization type slow release fertilizer is separated and screened from farmland soil for the first time, and has good degradation effect on the nutrient polymerization type slow release fertilizer, and the nutrient release of the Priestia megaterium YC5 can be efficiently matched with the crop demand; the strain is applied to farmland soil where the nutrient polymerization type slow release fertilizer is applied, nutrient release can be promoted when the strain is used for degrading the nutrient polymerization type slow release fertilizer, and the strain has the advantages of being high in nutrient utilization efficiency, high in matching degree of nutrient release and crop requirements, environmentally friendly and the like. The method has very important significance for promoting accurate and wide application of the nutrient polymerization type slow release fertilizer in agriculture.

The invention provides a special package compound fertilizer for peppers and a topdressing method thereof. The special package compound fertilizer comprises a nitrogen fertilizer, a phosphate fertilizer, a potash fertilizer, a calcium fertilizer, a magnesium fertilizer, a boron fertilizer, a microbial compound fertilizer and an amino acid fertilizer. The microbial compound fertilizer is prepared from a mixed arbuscular mycorrhizal fungal agent, a zinc fertilizer and manure, the mixed arbuscular mycorrhizal fungal agent is Glomus fasciatus Vermann and sclerosporum Dusii, topdressing is started according to the mass ratio of nitrate ions to ammonium ions being 1: (2-3) 10 days after the pepper is transplanted, and topdressing is carried out for 6 times in total. According to the chili package compound fertilizer, the chili nutrient absorption rule and the nutrient utilization efficiency are taken as the fertilization starting point, the nitrogen-phosphorus-potassium fertilizer is taken as the main body, and medium trace elements with large demand quantity for chili are added, so that the chili yield can be remarkably increased, the fruit quality can be improved, and the chili package compound fertilizer is suitable for being popularized and used in chili planting areas.

The invention belongs to the technical field of microbial organic fertilizers, and provides a microbial organic fertilizer and a preparation method thereof.The preparation method specifically comprises the following steps that modified attapulgite, an adhesive, water and a trace element fertilizer are weighed according to the weight part, and after the modified attapulgite, the adhesive, the water and the trace element fertilizer are evenly mixed, a coating agent is obtained; weighing according to parts by weight, crushing and grinding the organic fertilizer, mixing with the microbial agent, fermenting, and airing; mixing the air-dried fertilizer with an inorganic fertilizer, performing secondary crushing and grinding, and sieving to obtain a mixture; and finally, uniformly mixing the obtained mixture with a coating agent, and drying to obtain the microbial organic fertilizer. The microbial organic fertilizer provided by the invention can effectively prevent the caking problem of the fertilizer, and can also reduce the nutrient loss and reduce the pollution to the environment; meanwhile, the preparation process is simple, low in cost and suitable for large-scale production.

The invention discloses a method for preparing an organic fertilizer from livestock and poultry manure, which comprises the following steps: mixing cow dung and plant ash, pig manure and edible mushroom waste, chicken manure and vegetable waste, and duck manure and corn bran or mushroom stick residue, inoculating a corresponding mixed inoculant, fermenting and decomposing by using a trough type aerobic fermentation process, crushing, and screening to obtain the organic fertilizer. The cow dung bio-organic fertilizer, the pig manure bio-organic fertilizer, the chicken manure bio-organic fertilizer and the duck manure bio-organic fertilizer are obtained. According to the invention, rapid decomposition in 28 days in winter and 18 days in summer can be realized, meanwhile, the decomposition degree is remarkably improved, the killing rate of harmful germs reaches 98.93%, the humus content is greater than or equal to 58%, and the product is rich in microbial beneficial bacteria, rich in organic matters, mild in fertilizer efficiency and free of root burning.

The invention discloses a production method for preparing a potassium humate fertilizer through continuous high-pressure hydrothermal reaction of potassium feldspar, and relates to a wet grinding pulping process, a hydrothermal reaction process, a flash evaporation filter pressing process, a humic acid modified potassium fertilizer preparation process and a causticization and humic acid modified silicon-calcium fertilizer preparation process. The preparation method comprises the following steps: firstly, carrying out high-pressure tubular hydrothermal reaction and tower-type delayed reaction on potassium feldspar alkaline ore pulp prepared by fine grinding to prepare potassium aluminosilicate and calcium silicate, mixing alkaline potassium aluminosilicate filter residues obtained by filtering with humic acid, modifying, granulating and drying to obtain a humic acid coated long-acting slow-release potassium fertilizer product. The alkaline calcium silicate filtrate and lime are subjected to a causticization reaction to obtain a KOH solution, the KOH solution is returned to a wet pulping process to be recycled, and the alkaline calcium silicate and the humic acid are mixed, modified, granulated and dried to produce the humic acid coated long-acting slow-release silicon-calcium fertilizer product.

The invention provides a soil flora analysis method, a related soil flora and application thereof. Based on a soil long-term positioning test, an absolute quantitative method is used for the first time to explore a dynamic assembly rule of rhizosphere and in-root microbiome in a plant full life cycle, and the response characteristics of the rhizosphere microbiome to different fertilization treatments are studied. By combining methods of metagenome, microorganism isolated culture, community synthesis and the like, functional adaptation of rhizosphere microorganisms under different fertilization conditions and a mechanism of influencing the growth of leguminous plants are disclosed. The invention also provides a method for improving the chemical properties and soil flora of soil; the invention also provides an artificially synthesized flora which has a promoting effect on the growth and biomass of leguminous plants.

The invention relates to an alkaline activated carbon multi-stage synergistic potassium removal method, and belongs to the technical field of activated carbon materials. According to the method, a four-step synergistic process of water washing, acid pickling, ion exchange and nitrogen calcination is adopted, and a waste acid recycling closed-loop system is combined. The deep removal of residual potassium is realized through the synergistic effect of countercurrent water washing, pH (Potential of Hydrogen) staged regulation and control acid washing, deep potassium removal by ion exchange resin and nitrogen protection calcination, and meanwhile, the high specific surface area is maintained; the pickling waste liquid is neutralized, concentrated and crystallized to be converted into agricultural potash fertilizer, and mother liquid is recycled to form green circulation.

The invention provides a nutrient slow-release synergistic seedling transplanting disc and application thereof. The nutrient slow-release synergistic seedling transplanting disc is composed of a disc body and a seedling cup, the disc body is composed of two layers of materials including PBAT and PLA, the seedling cup is composed of three layers of materials, the inner layer is made of the PBAT material, the middle layer is a strip-shaped fertilizer belt made of macroelements, organic fertilizer, bacterial fertilizer and microelements, and the outer layer is made of the PLA material. The nutrient slow-release synergistic seedling transplanting disc integrates seedling raising and fertilization and can be used for seedling transplanting of grafted seed melons, seedling cups are directly transplanted into soil during transplanting, seedlings and the disc do not need to be manually separated, the seedling transplanting disc does not need to be recycled and transported after transplanting, the seedling cups in the soil isolate damage of salt, alkali and diseases and insect pests to seedling roots, and the seedling transplanting disc is convenient to use. Meanwhile, nutrient substances are slowly released, nutrients needed by melon seedlings are accurately met, the problem that an original seedling raising plate pollutes the environment is solved, and the problems that roots are damaged during transplanting, fertilization is balanced, the growth environment of the roots is poor and germs are harmed are solved.

The invention relates to the technical field of compound fertilizers, and discloses a boron-zinc-molybdenum synergistic compound fertilizer, which is prepared from the following raw materials in parts by weight: calcium nitrate, ammonium polyphosphate, potassium sulfate, magnesium sulfate, disodium octoborate tetrahydrate, sugar alcohol chelated zinc, sodium molybdate and a synergistic auxiliary agent, the feed additive is prepared from a feed additive, an activator, 5-alginic acid oligosaccharide, aminolevulinic acid, sugar alcohol chelated magnesium, an antagonist, a stress-resistant enhancer and a coating material. According to the boron-zinc-molybdenum synergistic interaction compound fertilizer and the preparation process thereof, the disodium octoborate tetrahydrate, the sugar alcohol chelated zinc and the sodium molybdate are compounded according to a specific proportion, antagonism is avoided through proportion limitation, the synergistic effect of the three elements is remarkably enhanced, and the problem that a single element is insufficient or excessive is solved; chelated elements such as sugar alcohol chelated zinc and sugar alcohol chelated magnesium are combined with an activating agent (humic acid chelated calcium and silica sol) to form a gel-state chelate, so that the trace elements can be prevented from being fixed by soil, and the transfer efficiency of the trace elements in crops is improved.

The invention discloses a special compound microbial fertilizer for corn and a preparation method, and relates to the technical field of special fertilizers for crops. The organic fertilizer is prepared from the following components in parts by weight: 15-20 parts of a microbial agent, 8-10 parts of charcoal, 20-25 parts of decomposed sheep manure, 8-10 parts of biogas residues, 5-8 parts of humic acid, 5-10 parts of monoammonium phosphate, 10-15 parts of urea, 8-12 parts of potassium chloride, 1-1.5 parts of boric acid, 1-2 parts of zinc amino acid chelate, 0.5-1 part of lipopeptide surfactin and 3-5 parts of diatomite. The four strains of bacillus amyloliquefaciens, azospirillum, bacillus subtilis and streptomycete are inoculated according to a proportion and are subjected to shake culture for 36 hours under the conditions that the temperature is 30 DEG C and the rotating speed is 180 rpm, the viable count reaches 2 * 10 CFU / mL, the four strains are co-cultured to reduce process steps, the nitrogen-fixing bacteria reduce the use amount of urea by 15%, the streptomycete improves the nematode inhibition rate by 40%, and meanwhile the culture cost is saved.

According to the long-acting water-soluble alkali-adjusting fertilizer and the preparation method thereof, raw materials of the long-acting water-soluble alkali-adjusting fertilizer are preferably selected from fully water-soluble materials, the product is fully water-soluble, the content of water-insoluble substances is smaller than 0.2% (G4 water-insoluble substance standard), and the long-acting water-soluble alkali-adjusting fertilizer is suitable for irrigation facilities such as drip irrigation facilities and sprinkling irrigation facilities; urea phosphate is used as a main acidic substance, so that the pH value of the product can be lower than 3.5 after the product is dissolved in water, and the effect of adjusting hard water is achieved; the raw material proportion is optimized, a certain amount of ammonium sulfate and powdery industrial monoammonium phosphate are used, meanwhile, the urea proportion is controlled, the use mode of ammonium bicarbonate after drying is matched, the system moisture is reduced, system dry-wet control is stabilized, the problem of screening deliquescence caused by system material acidity in the product production process is solved, and large-scale productivity is formed.

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 discloses a nano suspension slow-release water-soluble fertilizer. A polymer biodegradable film material is pretreated and then is subjected to a condensation reaction with an aldehyde substance under an acidic condition, and then a nitrogen-containing fertilizer is added; adding a dispersing agent and sodium silicate to obtain a solution A; performing cross-linking reaction on fatty alcohol-polyoxyethylene ether and carboxymethyl cellulose, and then adding liquid oil to obtain a solution B; mixing the solution A and the solution B, adding water glass, adjusting the pH to be nearly neutral, and adding an anti-crystallization material to obtain a solution C; and adding an anti-skinning agent and a slow-release inhibiting material into the solution C, uniformly mixing, and adding into the fertilizer. The fertilizer prepared from the waste polymer biodegradable film material has the characteristics of high suspension degree, high stability, high fluidity and homogeneous phase, and is easily compounded with other elements and media. The method is simple and easy to apply, saves energy and raw materials, and is low in production cost and remarkable in synergism.

The invention belongs to the technical field of fertilizers, and particularly relates to a fertilizer for capsicum as well as a preparation method and a fertilization method thereof. In the pepper planting process, the proportion of carbon and nitrogen in the soil is coordinated, the nutrient slow release effect is achieved, the contradiction between vegetative growth and reproductive growth of pepper plants is relieved, and the fertilizer utilization rate is increased. In addition, a microbial agent is applied to the roots after transplanting, and the soil matrix and the disease resistance are enhanced by utilizing the disease resistance and the soil microenvironment improving capability of the microbial agent, so that the pepper yield is increased. The technology is simple and easy to implement, convenient to operate and quick in effect, common farmers or farmers can easily implement the technology, soil fertility and disease resistance can be continuously improved, and the problem of nitrogen and phosphorus loss of the peppers is effectively solved.

The invention relates to the field of agricultural fertilizers, in particular to an organic compound fertilizer for preventing and treating diseases and insect pests of spring rapes and a preparation method of the organic compound fertilizer. Diversified raw material compositions in the organic compound fertilizer for preventing and treating the diseases and insect pests of the spring rapes provide rich and comprehensive nutritional ingredients; the fertilizer can supply major elements such as nitrogen, phosphorus and potassium for growth of spring rapes, meets the requirements of the spring rapes for nutrients in different growth stages, prevents various soil-borne diseases, reduces the morbidity of the spring rapes through multiple insect killing and preventing mechanisms, reduces yield reduction loss caused by diseases and insect pests, and improves the yield of the spring rapes. In addition, a good soil environment can be created, the release period of fertilizer nutrients is prolonged, the utilization rate of the fertilizer is increased, various negative effects caused by large-scale use of traditional chemical pesticides are reduced, the utilization rate of effective components in the organic compound fertilizer is increased to the maximum extent, the photosynthesis of the spring rape is promoted, and the yield and quality of the spring rape are improved; wide application prospects are realized.

The present invention relates to a crop nutrition and fortifying composition comprising: i. Elemental sulfur; ii. One or more water insoluble or water soluble magnesium salts or derivatives or mixtures thereof; iii. One or more water-insoluble or water-soluble potash fertilizers or salts or derivatives or mixtures thereof; iv. One or more water insoluble or water soluble iron salts or derivatives or mixtures thereof; v. One or more water insoluble or water soluble zinc salts or derivatives or mixtures thereof; vi. One or more water-insoluble or water-soluble boron salts or derivatives or mixtures thereof; vii. At least one trace element selected from the group consisting of water-insoluble or water-soluble vanadium salts or derivatives or mixtures thereof and water-insoluble or water-soluble selenium salts or derivatives or mixtures thereof; and viii. One or more excipients wherein the composition comprises microparticles having a size in the range of 0.1 to 50 microns, and wherein the total content of the water-soluble salts, derivatives or mixtures in the composition does not exceed 80% of the total weight of the composition. The invention also relates to a method for preparing the crop nutrition and fortifying composition and a method for treating a plant, a seed, a crop, plant propagation material, a locus, parts thereof or soil with the crop nutrition and fortifying composition.

The invention discloses a mixing device and application thereof in preparation of a water-retaining fertilizer type composite water-soluble fertilizer, and belongs to the technical field of composite water-soluble fertilizer production.The mixing device comprises a main body mechanism, a supporting mechanism is arranged on the main body mechanism, and a batching mechanism and a premixing mechanism are arranged at the top of the main body mechanism; through cooperative use of the batching mechanism and the premixing mechanism, proportioning, premixing and stirring mixing can be integrated, the fertilizer raw material transferring step is reduced, the fertilizer preparation step is simple, the mixing convenience of the fertilizer raw materials can be improved, the mixing efficiency of the fertilizer raw materials can also be improved, and large-scale production is easy; the mixing tank A and the tank cover are of a split structure, and the lifting mechanism and the turnover mechanism are matched for use, so that the tank cover can be lifted and turned over, the effect of conveniently opening the tank cover to disassemble, maintain and overhaul the mixing assembly is achieved, and the use is more convenient.

The invention relates to the technical field of soil improvement, and discloses a sandy grainfield soil organic matter quality improvement and increment method which comprises the following steps: comprehensively detecting soil, preparing an improvement material according to a comprehensive detection result, and deeply ploughing and returning the soil to the field; planting multifunctional intercrops, and crushing, turning and pressing the multifunctional intercrops into a soil layer to perform in-situ green manure returning from the full-bloom stage to the initial pod stage of the multifunctional intercrops; a polymeric organic-inorganic composite conditioner is applied; applying water, fertilizer and bacteria integrated regulation and control based on micro-spray irrigation; and high-stubble no-tillage straw covering and annual monitoring are implemented. According to the method, the organic matter, porosity and the like of the soil can be remarkably improved, and the ecological environment of the soil is remarkably improved.