58results about How to "Increase and update organic matter" patented technology

The invention belongs to organic fertilizer, and in particular relates to organic fertilizer for killing underground injurious insects and a preparation method thereof. The organic fertilizer comprises the following components in part by weight: 1000 parts of tobacco stalk, 25 to 30 parts of dry livestock manure, 5 to 10 parts of urea and 3 to 5 parts of solid high-efficient microorganism zymogeneous bacteria. The preparation method comprises the following steps that: the tobacco stalk is smashed; the livestock manure is dried and dehydrated; the urea is added to be uniformly mixed; the zymogeneous bacteria is inoculated; the moisture and the pH value are adjusted, fermentation stocks are piled up, and black plastic film covers the fermentation stocks, so the fermentation stocks are undertaken the anaerobic fermentation; after the temperature is increased, the stocks are turned for a plurality of times until the materials are fermented and matured and the size is reduced to two thirds of that of the original stocks; and the fermented stocks are naturally ventilated and dried and are bagged to store. The organic fertilizer has the advantages that the fertilizer efficiency is high, the underground injurious insects can be killed, the content of the organic colloid of the soil is increased after the application of the fertilizer, the fertilizer and water maintaining capacity of the soil is improved, the period of validity of the fertilizer is prolonged, and the probiotics in the soil can be compensated.

The invention discloses a method for restoring heavy metal contaminated soil through cooperation of magnetic activated carbon and an activating agent. The method includes the following steps that firstly, the activating agent is added to the heavy metal contaminated soil, and the soil is tilled evenly and activated for 20 d to 30 d; secondly, the magnetic activated carbon is added to the activated heavy metal contaminated soil, and the soil is tilled evenly and adsorbed for 20 d to 30 d; thirdly, the magnetic activated carbon is recycled in a magnetic separation manner; fourthly, the magnetic activated carbon recycled in the third step is soaked in 0.1 mol/L to 0.5 mol/L of acid liquid for 1 h to 2 h and washed through deionized water to be neutral so as to be recycled; fifthly, heavy metal ions in the acid liquid for washing the magnetic activated carbon in the fourth step are recycled; and sixthly, the first step to the fifth step are cycled till the content of heavy metal in the soil reaches the standard. After the method is adopted for cyclically restoring the soil at three times, the content of heavy metal in the heavy metal contaminated soil can reach the secondary standard, and the method is simple, efficient and short in period.

The invention provides a method for restoring heavy metal contaminated soil through an activating agent and microorganism reinforced plants. The method includes the following steps that firstly, the activating agent is added to the heavy metal contaminated soil, and the soil is tilled evenly and activated for 10 d to 20 d; secondly, complex microorganisms are inoculated in the activated soil, castor oil plants are planted for 1 to 2 periods, and one year is a period; thirdly, the castor oil plants planted in the second step are completely removed from the soil, the activating agent is added, and the soil is activated for 10 d to 20 d; fourthly, nightshade is planted in the soil activated in the third step for 2 to 3 periods, and one year is a period; fifthly, heavy metal in the castor oil plants obtained in the second step and the nightshade obtained in the third step is recycled; and sixthly, the first step to the fifth step are cycled till the content of the heavy metal in the soil reaches the standard. By the adoption of the method for restoring the heavy metal contaminated soil, the soil can be activated and improved, cost is low, contamination is small, and the heavy metal in the soil is efficiently removed.

The invention provides a multifunctional nutrient soil formula and a preparation method thereof. The multifunctional nutrient soil is prepared from sandy loam soil, wormcast, sika deer dung, urea, calcium superphosphate, attapulgite, sodium hydrogen carbonate, high-quality peat, perlite powder, decomposed straw, edible fungus sticks, plant ash, controlled-release fertilizer, distillers' grains, rice hull, aloe and deionized water. The multifunctional nutrient soil prepared by combining sandy soil and natural plant and animal organic fertilizer concentrate is high in moisture and fertilizer retention abilities, can effectively improve the gas permeability of soil, and is high in stress resistance and disease prevention performance, thus being suitable for guaranteeing the vigorous growth of flowers and trees throughout the year; after the multifunctional nutrient soil is used, fertilizer does not need to be additionally applied in the growth process; furthermore, the granular nutrient soil is convenient to carry and sell, thus meeting the market requirements.

The invention relates to the technical field of organic fertilizer manufacturing, and particularly relates to a biological organic fertilizer and a preparation method thereof. The biological organic fertilizer is prepared from an organic matter raw material, an inoculant, tobacco powder/stem dust and an adhesive; through the steps of adding the inoculant into the organic matter raw material, adding the tobacco powder/stem dust, crushing the obtained mixture, carrying out fermentation treatment, adding the adhesive, and sequentially granulating, drying and screening the dried mixture, components of the raw materials in a prepared biological organic fertilizer are collocated reasonably; by combining with the process steps, a synergistic effect is achieved among the raw materials, so that the water retention and fertilizer conservation efficiencies of the biological organic fertilizer are improved; and through the appropriate control on parameters in the preparation steps, the water retention, fertilizer conservation, and insect prevention and killing efficacies of the biological organic fertilizer are furthest increased, so that nutrient elements in the fertilizer applied to the soil are fully absorbed, and therefore the cost of fertilizer application and the manufacturing cost of the biological organic fertilizer are reduced.

The invention relates to a multielement functional bio-organic fertilizer, which is prepared from the following ingredients in parts by mass: 30 to 90 parts of common organic fertilizers, 10 to 30 parts of plant materials, 1 to 40 parts of mineral materials, 1 to 30 parts of animal materials and 1 to 10 parts of compound microorganism bacterium agents. The multielement functional bio-organic fertilizer comprises nitrogen-fixing bacteria which can be used for fixing nitrogen elements in the air; the requirements of crops on the nitrogen elements are met; mineral nutrient elements can meet the requirements of crops on other nutrient elements; the soil is improved; meanwhile, the defects of ordinary organic fertilizers are overcome; the addition of chemical fertilizers can be greatly reducedor no chemical fertilizer is used; the crop yield is stable; meanwhile, the prepared unfermented ordinary organic fertilizers are prepared into the blocky shape, so that the fertilizers are fermentedunder the ground; the turning labor is saved; the fermented fertilizers and the soil can realize full contact by using earthworms.

The invention discloses a biological special fertilizer for tobacco and a preparation method and application of the biological special fertilizer. The biological special fertilizer for tobacco comprises the following raw materials of tobacco stem biomass charcoal, amino acids, humic acid, fulvic acid, a cake fertilizer, bamboo vinegar, potassium sulphate, a composite microbial agent and charcoal energy extraction substances. The biological special fertilizer for tobacco has the functions of loosening soil, retaining water, keeping soil moisture and the like, and enables soil to be loose, and the fertilizer effects are long-lasting; besides, various nutrient elements are added, so that the tobacco can be well maintained healthy in the growth cycle, cell division and nutrient transformationof tobacco plants are intrinsically increased, sugar-alkali proportion balance of tobacco leaves is promoted, promotion of carbon metabolism and self resisting capacity of crops can be realized, growth declining tendency caused by factors of bad climate, soil hardening, undernutrition and the like can be quickly recovered, and promotion of tobacco plant quality is realized.

The invention discloses a fertilizer special for tea tree, which relates to the composite fertilizer technical field. The fertilizer special for tea tree comprises a coating layer and fertilizer particles in the coating layer, the fertilizer particle comprises 2-3 parts of nitrogenous fertilizer, 2-3 parts of phosphate fertilizer, 10-15 parts of decomposed fermentation silkworm excrement and 10-15 parts of molasses alcohol broth; the coating layer is a slow release carrier, the slow release carrier comprises stearic acid, an adhesive and mineral powder. The fertilizer special for tea tree can provides the trace element such as nitrogen element, phosphor element and potassium element which are required by growth of tea tree, abundant amino acid, humic acid and organic matter in the molasses alcohol broth are used for improving and supplementing nutrition for the soil, can promote the rapid growth of new leaf of the tea tree; the fertilizer particle is coated in the coating layer, the fertilizer is slowly released, so that loss rate of the fertilizer is effectively reduced, the use ratio of the fertilizer is increased, the slow release carrier is composed of stearic acid, the adhesive and mineral powder which are graded, so that white pollution is not generated.

The invention discloses a special microbial organic fertilizer for soybeans. The special microbial organic fertilizer is prepared from the following raw materials in parts by weight: 32 to 34 parts of peanut cakes, 18 to 20 parts of sheep manure, 14 to 16 parts of soybean straw, 2 to 4 parts of corn molasses, 7 to 9 parts of bagasse, 6 to 8 parts of fish intestines, 5 to 7 parts of expanded corn flour, 2.5 to 3 parts of vegetable oil, 1.3 to 1.5 parts of omphisa fuscidentalis hampson, 3 to 3.5 parts of diatomite, 4 to 6 parts of vermiculite, 1.1 to 1.3 parts of compound microbial agents, 2.2 to 2.4 parts of incense cedar leaves, 3.6 to 3.8 parts of cercidiphyllum japonicum bark and 4.1 to 4.3 parts of davidsoniae bark. According to the invention, the formula is scientific and reasonable, effective nutritional components of the raw materials are mutually integrated, and the effects of the effective nutritional components supplement one another, so that the soybeans are promoted to fully absorb, utilize and transform the nutritional components to facilitate high seed setting rates of the soybeans and make the soybeans plump, mosaic viruses of the soybeans and Ilattia octo insect damage are effectively prevented and treated, the soybean yield is improved, furthermore, soil organic matters can be increased and updated, soil physical properties, chemical properties and biological activities are improved, and the capacity of preserving water and fertilizers is enhanced.

The invention discloses a saline-alkali soil repairing novel fertilizer produced by taking high-silicon iron tailings as raw materials.The fertilizer is prepared by stirring and mixing, by weight, 60-70 parts of the high-silicon iron tailings, 2-8 parts of calcium sulfate, 1-6 parts of zinc sulfate, 1-6 parts of plant ash, 5-12 parts of ammonuim humate, 3-8 parts of potassium humate, 1-6 parts of calcium superphosphate, 5-12 parts of bran, 1-6 parts of ammonium molybdate, 3-8 parts of ferric citrate, 3-8 parts of magnesium sulfate heptahydrate, 2-7 parts of monopotassium phosphate, 1-6 parts of potassium chloride, 14-20 parts of fermented chicken manure, 12-18 parts of fermented sheep manure and 10-15 parts of oyster shell powder.According to the saline-alkali soil repairing novel fertilizer produced by taking the high-silicon iron tailings as the raw materials, the soil fertility can be improved, and the ventilation, water seepage, fertilizer conservation and water conservation capacities of saline-alkali soil can be enhanced.

The invention discloses an organic phosphatic fertilizer and a preparation method thereof. The organic phosphatic fertilizer is characterized in that ground phosphate rock is taken as the raw material of the phosphatic fertilizer and polygonum cuspidatum is taken as the raw material of an organic acid, and the weight part ratio of the two raw materials is (90-120): 1. The preparation method comprises the following steps: taking fresh polygonum cuspidatum, mashing the polygonum cuspidatum after cleaning and heating sterilization and putting the mashed polygonum cuspidatum into a fermentation tank at a temperature within the range of 42 to 60 DEG C; completely sealing the fermentation tank by use of plastic thin film and fermenting and acidifying for 3-7 days; next, adding the ground phosphate rock to the fermentation tank, uniformly mixing and stirring with the polygonum cuspidatum acid, and further fermenting at a high temperature ranging from 42 to 60 DEG C for 13-17 days until complete decomposition; finally, drying in the sun or drying until powder is obtained, and weighing, bagging and packaging. According to the organic phosphatic fertilizer, the fermented polygonum cuspidatum is adopted to replace sulfuric acid as the source of the acid substance of phosphatic fertilizer production for the first time; the natural plant is taken as the raw material, no chemical synthetic substance is used and added in the production process, the equipment investment and loss are low, the process is simple and no waste is discharged, and therefore, the organic phosphatic fertilizer is suitable for the production of organic agriculture and green agriculture.

The invention discloses an organic fertilizer for improving the saline-alkali tolerant stress resistance of paddy rice. The organic fertilizer is prepared from the following raw materials: bean dregs,peanut residues, soybean residues, biogas digester precipitation dregs, gypsum, a nitrification inhibitor DMPP (Dimethyl-phenyl-piperazinium), a willow leaf, a pine needle leaf, a poplar leaf, a silicon fertilizer, silicate, calcium chloride, ferrous sulfate, talcum powder, microorganism strains, calcium humate, sodium carbonate, slaked lime, zinc sulfate, rice washing water and outdated beer. Apreparation method is simple; the prepared organic fertilizer for planting the paddy rice has a high utilization rate; the investment of conventional fertilizer is reduced and nitrogen activity is improved; original nutrients in soil can be activated and sufficiently absorbed and utilized by crops, so that the yield of the crops is increased, the stress resistance of the crops is improved and thesoil can be effectively improved; the organic fertilizer is strong in adaptability, especially suitable for saline-alkali hardened soil and good in compatibility, and various types of fertilizers canbe added into the organic fertilizer.

The invention discloses a fertilizer additive. The feed additive comprises, by weight, 10-20 parts of fishmeal, 13-25 parts of silkworm excrement, 7-14 parts of black garlic residues, 1-2 parts of a soil loosening agent, 3-7 parts of humic acid, 6-14 parts of rare earths, 10-30 parts of bentonite, 8-20 parts of diatomaceous earth, 5-15 parts of expanded perlite, 3-8 parts of modified starch, 2-5 parts of chitosan, 1-2 parts of dry yeast, 0.3-0.5 part of a root growth promoting agent and 0.2-0.6 part of amino acids. The fertilizer additive can be applied together with an ordinary chemical fertilizer in order to improve the physical and chemical bioactivity of soil, supplement trace elements in the soil, enhance the water retention and fertilizer conservation ability, make soil loose, increase the chemical fertilizer utilization rate of crops and increase the yield.

The invention discloses a special microorganism organic fertilizer for wheat. The special microorganism organic fertilizer is prepared from the following raw materials in parts by weight: 11 to 13 parts of manioc waste, 22 to 24 parts of maize straws, 26 to 28 parts of cottonseed cake, 8 to 10 parts of turfy soil, 4 to 6 parts of zeolite, 6 to 8 parts of fly maggots, 10 to 12 parts of bran, 13 to 15 parts of pig blood, 5 to 7 parts of duck feather, 6 to 8 parts of pitaya peels, 1 to 3 parts of mango peels, 4 to 6 parts of raphiolepis indica sawdust, 8 to 10 parts of raphiolepis indica leaves, 3 to 5 parts of cercis gigantean sawdust, 7 to 9 parts of cercis gigantean leaves and 1.4 to 1.6 parts of complex microbial agents. The special microorganism organic fertilizer has the advantages that the effective nutritional ingredients of all raw materials are mutually fused; the effects supplement each other; the action effect of the fertilizer can be effectively enhanced; the organic matters of soil are increased and updated; the full absorption utilization and conversion of the wheat on the nutritional ingredients are promoted, so that the ripening rate of the wheat is high; the wheat kernels are full; the rust disease and the aphid insect pest of the wheat can be effectively prevented and treated; the wheat yield is improved, so that high economic profits are brought for planting households.

The invention discloses fertilizer for preventing tobacco bacterial wilt and increasing the yield. The fertilizer comprises the following raw materials: cow dung, sheep dung, fish maw and gut, brewers grain, omphisa fuscidentalis hampson powder, arborvitate tops, katsuratree barks, tea straws, urea, superphosphate, monoammonium phosphate, potassium nitrate, potassium sulphate, potassium chloride, borax, zinc amino acid chelate, ferrous amino acid chelate, copper amino acid chelate, manganese amino acid chelate, molybdenum amino acid chelate, sodium metasillcate, chromium yeast, nanometer cobalt, gama-polyglutamic acid, polyaspartic acid, phosphorous acid, 3,4-dimethylpyrazole phosphate, a compound water-preservation agent and a microbial agent. The fertilizer organically combines four major functions of tobacco fertilization balancing nutrition, element cooperatively reinforcing function, biological antagonism restraining germs and soil conditioning preventing and treating source, greatly improves the prevention effect on tobacco bacterial wilt, and meanwhile has the effects of water retention and yield increasing.

The invention discloses a compound fertilizer for planting chrysanthemum, which is prepared from the following raw materials in parts by weight: 50 parts of organic phosphate fertilizer, 8 parts of sodium borate, 100 parts of maize straw, 50 parts of animal bone meal, 30 parts of lotus root starch, 30 parts of peanut shell, 50 parts of silkworm excrement, 50 parts of wormcast, 15 parts of herba agrimoniae, 15 parts of garden burnet leaves, 15 parts of medical stone flour, 6 parts of potassium humate, 10 parts of hexanoic,2-(diethylamino) ethyl estercitrate, 8 parts of sodium selenite, 8 parts of manganese sulfate, 8 parts of ammonium molybdateheptahydrate, 10 parts of calcium superphosphate, 3 parts of ammonium sulfate, 3 parts of sodium metaphosphate, 3 parts of calcium superphosphate, 30 parts of enzyme microorganism and 15 parts of soil water holding agent. By means of scientific and reasonable formulation, the compound fertilizer for planting the chrysanthemum disclosed by the invention can effectively meet requirements of golden chrysanthemum for nutrients in the entire growing process; fermentation products obtained by means of fermentation not only can provide comprehensive nutrients for the chrysanthemum but also exhibit longer fertilizer efficiency, and therefore soil organic matters can be increased and updated, the reproduction of microorganisms is promoted, and physicochemical property and biological activity of soil are improved.

The invention discloses a scientific cultivation method of Taoyou Xiangzhan (indica-variety three-line hybrid medium late rice), and belongs to the field of rice cultivation. The scientific cultivation method of the Taoyou Xiangzhan comprises the following steps: S1, processing a rice seedling bed, namely selecting a rice seedling bed, and carrying out processing so as to achieve a regular bottomwidth of 2 m, a groove width of 0.5 m and a groove depth of 0.2 m; S2, carrying out sowing in good time, namely sparsely sowing raised seedlings, scattered-planting on June 17th to June 20th, transplanting with soil-removed big seedlings on June 21th to June 23th and machine transplanting on June 23th to June 25th; S3, processing a rice field, namely planting 10 kg of Chinese milk vetch in a ricefield in May, allowing the Chinese milk vetch to grow and mature in one month, carrying out mechanical plowing so as to have the mature Chinese milk vetch buried, and synchronously applying an organicfertilizer at a dosage of 170-210 kg/mu; S4, carrying out transplanting in good time, namely carrying out rational close planting, scattered-planting with long-age seedlings and transplanting with soil-removed big seedlings controlled within 25 days and machine transplanting controlled within 20 days; S5, carrying out scientific fertilization, namely applying sufficient base fertilizer in line with the rule of heavy application of base fertilizer, early application of top dressing and late application of ear fertilizer as appropriate; S6, carrying out scientific water management, namely sunning the rice field in good time, and managing water in line with the rule of shallow planting in thin water, living stump in deep water and tillering in shallow water; and S7, preventing and treating diseases, insects and pests. The scientific cultivation method of the Taoyou Xiangzhan is capable of ensuring relatively low morbidity, high cultivation efficiency and vigorous growth.

The invention relates to a fertilizer additive, which consists of the following components of grain, shell, straw and an ammonium carbonate fertilizer in a weight part ratio of 12-27:20-45:43-62:55-82. Distilled grain is taken as a raw material and contains massive yeasts and acetic acid bacteria, which are decomposed to produce massive substances contributing to growth of crops, so as to contribute to the growth of the crops; the shell is calcined at high temperature to have the effects of sterilization and antibiosis; and the straw serves as a raw material, can increase and update soil organic matters, facilitates microbial propagation and improves the physicochemical property and bioactivity of soil, and is a main nutrient source for production of green food. Field tests prove that: the fertilizer additive can obviously improve the yield of the crops, is low in production material cost, has readily available materials, and is a new trend for the fertilizer development.

The invention discloses a method for producing organic fertilizer by using high-temperature anaerobic sludge, pig manure and chicken manure as raw materials. The method is characterized by comprising the following steps: first mixing the raw materials comprising high-temperature anaerobic sludge, pig manure and chicken manure by a mass ratio of 1.5-2.5:0.5-1.5:0.5-1.5; inoculating fermentation deodorization strains 1-3% of the total weight of the raw materials; fermenting at room temperature for 3-7 d; and inoculating fermentation composting strains 2-4% of the total weight of the raw materials; controlling a fermentation temperature at 20-30 DEG C, and relative humidity at 30-40%; flipping the materials every two hours; and fermenting for 3-7 d, wherein a mass fraction of organic matters in the fertilizer, calculated by dry substances, achieves higher than 45%, and a mass fraction of the total nutrients, calculated by dry substances, reaches higher than 5%, and a mass fraction of water, calculated by fresh sample meter, is less than 30%; and finally packing and storing. The invention has advantages that the produced organic fertilizer is rich in beneficial substances, can provide comprehensive nutrition of crops, has long fertilizer efficiency, and is the main nutrients for green food production.

The invention relates to a fluid seed formula for vegetable restoration of a high tidal flat salt marsh of a coastal wetland, a fluid seed and a production process thereof. Specifically, the fluid seed formula provided by the invention comprises a water retaining agent, an auxiliary binder and a nutrition accelerant. The water retaining agent selects hydroxyethyl cellulose which plays roles in accumulating and storing water. The auxiliary binder is composed of coastal clay, attapulgite clay and hydroxyethyl cellulose and is bound with surface soil to resist to the disturbance of tidal water power. The nutrition accelerant comprises biomass particles, chitosan oligosaccharide, polyaspartic acid, tea saponin, indoleacetic acid, humus, fermented faeces and oyster shell powder and play a rolein regulating nutrients and growth. The invention provides the fluid seed by which the problem that a seed flow is nonuniform in dispersion and incapable of realizing effective field planting on a high tidal flat of the coastal wetland is solved, and the emergence rate of seeds is increased. In addition, the invention further provides the production process of the fluid seed, and the production process is simple, relatively low in cost and suitable for large-scale production.

The invention discloses microorganism organic fertilizer special for corn. The microorganism organic fertilizer is prepared from the following raw materials in parts by weight: 13 to 15 parts of castor cakes, 9 to 11 parts of wormcast, 2 to 4 parts of duck egg shell, 3 to 5 parts of cottonseed hull, 2.4 to 2.6 parts of scarp, 1.6 to 1.8 parts of gingko biloba testa, 3.1 to 3.3 parts of pepper leaves, 3.4 to 3.6 parts of bamboo leaves, 4.1 to 4.3 parts of distillers grains, 0.6 to 0.8 part of algin, 0.6 to 0.8 parts of ox horn, 0.3 to 0.4 part of compound microorganism bacteria, 1.3 to 1.5 parts of bone oil, 2.4 to 2.6 parts of swill, 3.2 to 3.4 parts of humus and 2.1 to 2.3 parts of dolomite. The microorganism organic fertilizer disclosed by the invention is scientific and reasonable in formula, effective nutrient components of all raw materials are in mutual integration and have the functions of supplementing each other, the physical property and the biological activity of soil can be improved, and high ripening rate and full grains are obtained through enhancing the absorption and utilization of the corn on the nutrient components; bacterial wilt and dichocrocis punctiferalis of the corn can be effectively prevented, so that the yield of the corn is increased, and higher economic profit is brought for farmers.

The invention discloses a planting fertilizer for Dendranthema morifolium and a preparation method thereof. The fertilizer is composed of the following raw materials in parts by weight: 45 to 55 parts of an organic phosphorus fertilizer, 25 to 30 parts of rice bran powder, 4 to 10 parts of mushroom residue, 8 to 12 parts of cassava residue, 10 to 15 parts of wood sawdust, 2 to 4 parts of borax, 4 to 6 parts of hairyvein agrimony, 5 to 10 parts of garden burnet leaves, 10 to 15 parts of medical stone powder, 1 to 3 parts of potassium humate, 1 to 2 parts of a trace element fertilizer, 0.4 to 0.6 part of ammonium sulfate, 0.8 to 1.5 parts of potassium tripolyphosphate, 0.5 to 0.7 part of sodium metaphosphate, 1 to 2 parts of calcium superphosphate and 13 to 15 parts of a soil water-retaining agent. The fertilizer for the Dendranthema morifolium provided by the invention has the following advantages: through reasonable and scientific combination, the requirements of the Dendranthema morifolium for nutrition in the process of growth can be effectively met; and through fermentation products obtained by fermentation, comprehensive nutrition can be supplied for the Dendranthema morifolium; meanwhile, fertilizer efficiency lasts long; organic matters in soil can be increased and renewed; microorganism reproduction is promoted; and physicochemical properties and biological activity of the soil are improved.

The invention discloses an organic fertilizer additive and a preparation method thereof and relates to the technical field of fertilizer additives. The organic fertilizer additive comprises the following raw materials in percentage by weight: 2% of liquorice, 2% of branches and leaves of dried kudzu vine, 2% of dried wild chrysanthemum, 1% of oligosaccharide, 1.5% of dried yeast and 91.5% of water. The preparation method comprises the following steps of putting liquorice, the branches and leaves of dried kudzu vine and dried wild chrysanthemum into boiled water, soaking for 4 hours and then filtering the residues of liquorice, the branches and leaves of dried kudzu vine and dried wild chrysanthemum and impurities, standing the filtrate, putting oligosaccharide and dried yeast and fermenting for 30 days until a sour is formed to obtain the organic fertilizer additive. According to the preparation method disclosed by the invention, since the fermentation broth obtained by fermenting soaking solutions of three plants is used as the organic fertilizer additive to provide comprehensive nutrition for crops, the fertilizer efficiency is long, the organic substances in soil can be increased and updated, the propagation of microorganisms is promoted, physical and chemical properties and the biological activity of soil are improved and the organic fertilizer additive is a main nutrient for green food production.

The invention discloses an organic fertilizer applied to crops and relates to the technical field of chemical fertilizers. The organic fertilizer applied to the crops is prepared from the following raw materials: 20-30 parts of leonardite, 20-30 parts of organic matters, 18-25 parts of rotten and fermentative silkworm excrement, 2-4 parts of gluconic acid, 10-15 parts of carbamide and 0.1-1 part of trace elements. A method for preparing the organic fertilizer applied to crops comprises the following steps: firstly preparing the rotten and fermentative silkworm excrement; then putting the leonardite and gluconic acid in water to react; and finally, uniformly mixing with carbamide, the trace elements and the organic matters to prepare the organic fertilizer. The organic fertilizer is capable of providing comprehensive nutrition for the crops, improving the fertilizer efficiency, increasing and updating the organic matters in soil, promoting reproduction of microorganisms, greatly improving the nutrition conversion rate of the cultivation material, improving the biochemistry activity of the soil, promoting photosynthesis of chlorophyll of the crops, shortening the growth periods of the crops, reducing plant diseases and insect pests and improving the yield of crops.