61 results about "Magnesium potassium sulfate" patented technology

The invention discloses a high-yield organic fertilizer for selenium-rich wheat. The high-yield organic fertilizer for selenium-rich wheat comprises livestock and poultry dung, corn stalks, plant ash, cassava residues, soybean cake powder, potassium mineral powder, castor bean cakes, furfural residues, a nitrogen fertilizer, boric acid, ammonium nitrate, urea, zinc sulfate, magnesium potassium sulfate, calcium superphosphate, functional bacteria, a stalk fermentation bacterium agent, traditional Chinese medicine residues, cellulase, brown sugar, a soil conditioner and a selenium-rich additive. The invention also provides a preparation method of the high-yield organic fertilizer for selenium-rich wheat. The organic fertilizer prepared in the invention can provide various nutrient substances needed by wheat production, can provide abundant element selenium for production of wheat to make the wheat obtained after plantation be rich in abundant selenium and improve the nutrition values of the wheat, and also has the advantages of abundant nutrient substances and effective improvement of the output and the quality of the wheat.

The invention discloses a special liquid soil conditioner for improving saline land, increasing yield, controlling pests and reducing residues. The special liquid soil conditioner is prepared from the following raw materials in percentage by weight: 6.5-16.5% of microbial flora, 2-6% of humic acid, 3-5% of urea, 2-4% of ammonium nitrate, 1-3% of ammonium sulfate, 2-3% of phosphoric acid, 1-2% of monoammonium phosphate, 1-2% of diammonium phosphate, 2-3% of calcium superphosphate, 1-2% of potassium sulfate, 1-3% of potassium nitrate, 2-3% of magnesium-potassium sulfate, 1-2% of amino acid, 1-2% of boric acid, 0.4-1.0% of insecticide, 9.1-17% of separant, 0.5-1.5% of plant growth regulator and the balance of water. All the raw materials are uniformly mixed and dissolved to obtain the special liquid soil conditioner. By using the conditioner, the nitrogen content of soil is increased by 20-100%, the yield increasing rate is up to 30-60% on the year-on-year basis, the fatality rate of pests is up to 90-100%, and the residue reducing rate is up to 20-40 on the year-on-year basis.

The invention relates to a technique for manufacturing magnesium potassium sulfate fertilizer by extrusion pelleting with no drying, which is characterized by: mixing lemery, anhydrous magnesium sulfate, water retention agent as well as medium elements and microelements according to the weight portions of 46:35:0.6:18.4; transmitting the mixture to a feed hopper after being fully stirred, then packaging the mixture into a finished product by rolling, cutting up, pelleting and sieving; the medium elements and the microelements include: zeolite powder, borax, zinc sulfate, bluestone and green copperas which are uniformly mixed according to the weight portions of 10 to 20: 1 to 3: 1 to 2.5: 0.1 to 1.5 : 0.1 to 1. The invention adopts the technique of extrusion pelleting and is added with a drought control water retention growth promoting agent; the produced multi-element magnesium potassium sulfate water retention fertilizer has the advantages of slow nutrient release, high fertilizer operating factor, easing resource shortage, reducing soil nutrient losing, protecting the underground water environment as well as being safe and environment protective. During the whole manufacture process, no water and no drying processes are educed, thus reducing power consumption and coal consumption during the drying and cooling processes; no contaminations of the three wastes are discharged during the manufacture process.

The invention discloses special micro-balance ecological fertilizer for an organic tea garden. The special micro-balance ecological fertilizer comprises the following raw materials by weight percent: 30 to 35 percent of rape seed cake, 15 to 20 percent of sasangua cake, 20 to 40 percent of trachycarpus fortunei meal, 1 to 2 percent of fermentation strain, 1 to 2 percent of active functional bacteria, 5 to 6 percent of magnesium potassium sulfate, 5 to 6 percent of phosphorus mineral powder, 1 to 2 percent of trace elements, 1 to 2 percent of earthworm extraction liquid and 1 to 2 percent of algae extraction liquid. The invention also discloses a preparation method of the special micro-balance ecological fertilizer. The special micro-balance ecological fertilizer for the organic tea garden is prepared strictly according to the soil environment of the continental land and according to the growth habit and environmental factors of tea trees; by controlling the formula components and the proportion thereof, a purpose of activating the soil, improving the fertility, providing comprehensive nutrition to the growth of the tea tree and improving the quality of the tea tree can be realized.

The invention discloses yield-increasing fertilizer used for wheat planting. The yield-increasing fertilizer used for the wheat plant is prepared from the following raw materials in parts by weight: 60-120 parts of livestock manure, 30-50 parts of plant ash, 5-15 parts of cassava residue, 2-8 parts of soybean meal, 1-5 parts of potassium mineral, 2-4 parts of wheat straw, 3-6 parts of castor cake, 1-5 parts of furfural residue, 1-3 parts of nitrogenous fertilizer, 2-4 parts of boric acid, 4-8 parts of ammonium nitrate, 2-9 parts of urea, 4-6 parts of zinc sulfate, 2-6 parts of magnesium-potassium sulfate, 3-4 parts of calcium superphosphate, 1-5 parts of paclobutrazol, 2-5 parts of carbofuran, 4-5 parts of metalaxyl and 2-6 parts of a soil conditioner. The yield-increasing fertilizer used for wheat planting can be used for effectively increasing the yield and quality of wheat.

The invention discloses a soil improvement type soybean dedicated sustained-release fertilizer comprising the following components by the weight percentage: 20-36% of urea, 20-36% of urea phosphate, 10-20% of potassium chloride, 10-20% of a magnesium potassium sulfate fertilizer, 1-6% of humic acid calcium, 2-7% of humic acid magnesium, 2-8% of humic acid boron, 1-6% of humic acid sodium, 0.005-0.02% of sodium nitrophenolate, 1-5% of a sustained-release agent, and 3-8% of an auxiliary material. The sustained-release agent comprises the following components by the weight percentage: 5-15% of N-hydroxymethyl acrylamide, 10-30% of unsaturated polyester resin, 4-10% of cyclohexanol, 5-13% of 2-butyl alcohol, 1-5% of a talc powder, 1-4% of kaolin, 1-6% of ethyl cellulose, and the balance being distilled water. The invention also discloses a preparation method for the soil improvement type soybean dedicated sustained-release fertilizer.

The invention discloses a flue-cured tobacco cultivation method capable of effectively controlling high-nitrogen soil fertility. The cultivation method comprises the following steps: A. before transplantation, making a pond in a tobacco field, and applying a phosphate fertilizer in the pond; B. during the transplantation, applying an organic magnesium potassium sulfate fertilizer, an organic induced disease-resistant agent, a microbial inoculant and biochar into the pond, and after finishing the transplantation, applying well-rotted farmyard manure and covering the pond; C. 10-15 days after the transplantation, applying an all-water-soluble organic fertilizer solution in the pond; D. 40-60 days after the transplantation, spraying an organic potassium fertilizer and a boron zinc molybdenum fertilizer; and E. 55-60 days after the transplantation, carrying out tip pruning on the tobacco plants. The method is simple to operate, and is capable of effectively controlling the high-nitrogen soil fertility and lowering the residual nitrogen element in the high-nitrogen soil. The first batch of nitrogen element which can be easily decomposed in the soil is firstly released, thereby satisfying the demands of early growth and quick tillering of the transplanted tobacco plants. Meanwhile, the method can effectively control the phenomena of regreening and excessive vegetative growth in the tobacco plants.

The improved process of preparing magnesium potassium sulfate fertilizer with bittern containing potassium and magnesium sulfate includes the following steps: 1. spreading and shinning the bittern to form mixed potassium salt; 2. crushing and grinding the mineral of mixed potassium salt; 3. adding fresh water or slight salty water in the amount one 0.3-0.6 times the floated mixed potassium salt to convert the slurry; 4. mixing the slurry and floating chemical to float and obtain floated foamed concentrate; 5. washing the concentrate with fresh water or slight salty water; and 6. solid-liquid separating the concentrate to obtain solid concentrate and drying the solid concentrate to obtain magnesium potassium sulfate fertilizer product. The process of the present invention is simple, and has high quality of the produced magnesium potassium sulfate fertilizer.

The invention discloses a soil improvement type selenium-rich special slow release fertilizer for soybeans. The soil improvement type selenium-rich special slow release fertilizer for soybeans comprises urea, cake-shaped rape seed dregs, soybean powder, corn starch, sucrose, saccharifying powder, yeast powder, a titanium compound, urea phosphate, potassium chloride, a magnesium potassium sulfate fertilizer, calcium humate, magnesium humate, boron humate, sodium humate, compound sodium nitrophenolate, a slow release agent and a selenium-rich additive. The invention also provides a preparation method of the soil improvement type selenium-rich special slow release fertilizer for soybeans. The special slow release fertilizer for soybeans contains abundant organic matters, inorganic matters and minerals, also contains abundant growth elements for promoting growth of soybeans, can effectively improve the nutrition structure of soybean growing soil, and improves the output and the quality of the soybeans; and coating of the slow release agent in the preparation process effectively improves the slow release performance of the fertilizer, makes nutrients be uniformly released and improves the growth efficiency of the soybeans, and the added selenium-rich additives can provide abundant selenium element for the growth of soybeans.

The process of preparing magnesium potassium sulfate fertilizer with bittern containing potassium and magnesium sulfate includes the following steps: 1. spreading and shinning the bittern to form mixed potassium salt; 2. collecting mixed potassium salt slurry with pump; 3. regulating the concentration of the slurry to not higher than 20 %; 4. mixing the slurry and floating chemical to float; 5. adding fresh water or slight salty water in the amount one 0.3-0.6 times the floated mixed potassium salt to convert the slurry; 6. solid-liquid separating to obtain soft wet potassium and magnesium alum; 7. washing with fresh water or slight salty water and solid-liquid separating to obtain soft wet potassium and magnesium alum; and 8. drying to obtain magnesium potassium sulfate fertilizer. The process of the present invention is simple, has high quality of the produced magnesium potassium sulfate fertilizer, and is designed specially for water process collected bittern material.

The invention discloses a controlled-release fertilizer for wax-apple trees and a method for preparing the controlled-release fertilizer. The controlled-release fertilizer is prepared by compounding reaction film-forming polymer coated urea with 4% coating quantity, reaction film-forming polymer coated urea with 5% coating quantity, coated magnesium-potassium sulfate, diammonium phosphate and potassium sulphate. The nutritional synchronous controlled-release fertilizer specially used for the wax-apple trees is prepared according to the nutrient requirement rule and the essential nutrients of the wax-apple trees, can supply the nutrients needed by the wax-apple trees continuously and synchronously to meet the needs of the wax-apple trees for three elements including nitrogen, phosphorus and potassium and nutritive elements including zinc and boron, can take effect for a long time, has the effects of improving the yield of wax apples, improving the taste of the wax apples and ensuring that the wax apples have good taste and the attractive appearance and solves the problem of high cost due to the single use of the controlled-release fertilizer.

A disclosed efficient fertilizer special for corn is prepared as follows: uniformly mixing pond trench mud, oil shale ash, ferrous sulphate, monoammonium phosphate, manganese sulfate, potassium chloride, zinc sulfate, a magnesium-potassium sulfate fertilizer, ammonium molybdate and attapulgite powder, so as to obtain a material A; adding animal hair into a sulfuric acid solution for hydrolysis, adding proper amount of calcium bicarbonate to adjust the pH value of the hydrolysis solution to be 6.75-6.83, then adding carboxymethylcellulose sodium and stirring uniformly to obtain a mixed solution, adding sweet potato powder, urea, dicyandiamide powder and polyvinyl alcohol into the mixed solution, and uniformly mixing to obtain a material B; and spraying the material B to the continuously-rotated material A, and pelleting to obtain the efficient fertilizer special for corn. The efficient fertilizer special for corn is capable of improving the lodging resistant capability of corn and satisfies various elements demands by corn growth, and the release speed accords with different demands of corn on nutrition elements at all growth periods, and also the efficient fertilizer special for corn is capable of improving the soil physical and chemical properties and increasing soil fertility.

A disclosed disease-resistant fertilizer special for corn is prepared as follows: utilizing bacillus subtilis to perform fermentation on rapeseed cake, wheat bran, plant ash, animal manure and pond sludge, so as to obtain a fermentation material; fusing urea, then adding ferrous sulphate, monoammonium phosphate, diammonium phosphate, boric acid, potassium chloride, zinc sulfate, a magnesium-potassium sulfate fertilizer and ammonium molybdate, mixing uniformly, cooling, uniformly mixing with the fermentation material to obtain a material A; uniformly mixing the material A, Chinese medical stone, a soil improvement composition bamboo charcoal, oil shale ash and attapulgite powder, crushing and sieving to obtain the disease-resistant fertilizer special for corn. The disease-resistant fertilizer special for corn helps to improve the lodging resistant capability of corn, satisfies various element demands by corn growth, has a release speed satisfying different demands of corn at all growth stages on nutritional elements, also is capable of improving soil physical and chemical properties and increasing soil fertility, and also is capable of preventing attack of sclerotinia rot and avoiding large-area output reduction.

The invention discloses an organic slow-release compound fertilizer for paddy rice soil purification. The materials of the organic slow-release compound fertilizer for paddy rice soil purification include dried pond mud, peanut bran, corn straws, soybean meal, distiller's grains, mushroom dregs, pig manure, cater cakes, medical stone powder, shell powder, chitin, fishbone powder, urea, ammonium nitrate, monopotassium phosphate, urea phosphate, calcium superphosphate, ammonium dihydrogen phosphate, potassium sulfate, magnesium-potassium sulfate, ammonium molybdate, thiourea, potassium nitrate, paclobutrazol, ethylene-chlormequat-potassium, modified slow-release agent and soil-purifying additive. The organic slow-release compound fertilizer disclosed by the invention has excellent slow-release property, and can purify the environment of paddy rice-growing soil and increase the yield and quality of paddy rice.

The invention discloses a special organic fertilizer for organic oil tea. The special organic fertilizer is prepared from the following components in percentages by mass: 30-55% of compost, 5-15% of peat, 15-30% of potassium magnesium sulfate, 9-17% of powdered rock phosphate, 0.5-2% of borax, 0.5-1% of a seaweed extraction liquid and 5-15% of clay. The special organic fertilizer disclosed by the invention not only can provide crops with nutrients directly, but also can improve the cold resistance of the oil tea obviously, reduce the flower and fruit falling rates, reduce the plant diseases and insect pests and improve the stress resistance of plants, so that the crops bloom better and bear more fruits, a lot of nutrients are absorbed in a flowering and fruit-bearing later period, a purpose of bearing more fruits to promote production is achieved, the output of the oil tea is improved obviously, and a purpose of production and yield increase is achieved; moreover, the special organic fertilizer which can be used as a soil improver improves the organic matters of soil, regulates the pH value of the soil and improves the granular structures of the soil, and achieves the purposes of improving the soil and increasing the fertilizer efficiency.

The process of preparing magnesium potassium sulfate fertilizer with bittern containing potassium and magnesium sulfate includes the following steps: 1. spreading and shinning the bittern to form mixed potassium salt; 2. collecting mixed potassium salt slurry with pump; 3. regulating the concentration of the slurry to not higher than 20 %; 4. mixing the slurry and floating chemical to float; 5. adding fresh water or slight salty water in the amount one 0.3-0.6 times the floated mixed potassium salt to convert the slurry; 6. solid-liquid separating to obtain soft wet potassium and magnesium alum; 7. washing with fresh water or slight salty water and solid-liquid separating to obtain soft wet potassium and magnesium alum; and 8. drying to obtain magnesium potassium sulfate fertilizer. The process of the present invention is simple, has high quality of the produced magnesium potassium sulfate fertilizer, and is designed specially for water process collected bittern material.

The invention discloses a soil improvement type cotton dedicated sustained-release fertilizer comprising the following components by the weight percentage: 25-40% of powdered urea, 12-25% of urea phosphate, 15-30% of potassium chloride, 6-15% of a magnesium potassium sulfate fertilizer, 2-10% of humic acid zinc, 2-8% of humic acid boron, 1-5% of humic acid calcium, 1-4% of humic acid magnesium, 0.005-0.02% of sodium nitrophenolate, 1-5% of a sustained-release agent, and 3-8% of an auxiliary material. The sustained-release agent comprises the following components by the weight percentage: 5-15% of N-hydroxymethyl acrylamide, 10-30% of unsaturated polyester resin, 4-10% of cyclohexanol, 5-13% of 2-butyl alcohol, 1-5% of a talc powder, 1-4% of kaolin, 1-6% of ethyl cellulose, and the balance being distilled water. The invention also discloses a preparation method for the soil improvement type cotton dedicated sustained-release fertilizer.

The invention discloses a farmland fertilizer for improving the permeability of soil. The fertilizer comprises, by weight, 8-16 parts of potassium mineral powder, 25-45 parts of urea, 16-22 parts of a magnesium potassium sulfate fertilizer, 10-20 parts of phosphate rock powder, 4-6 parts of carboxymethylcellulose sodium, 4-10 parts of modified Chinese yam starch, 4-8 parts of yellow phosphorus furnace slag, 4-8 parts of cassava residues, 4-6 parts of manganese-containing calcium superphosphate, 2-4 parts of natural zeolite, 1-2 parts of manganese sulfate, 0.8-1.6 parts of borax, 0.003-0.006 parts of Bacillus subtilis, 0.002-0.005 parts of phytase, 0.02-0.05 parts of Bacillus licheniformis, 0.002-0.005 parts of metalloprotease, 12-20 parts of straw powder, 20-30 parts of animal manure, 6-10 parts of furfural residues, 20-25 parts of humus soil, 3-7 parts of shell powder, 3-6 parts of peanut shells, 4-8 parts of cottonseed meal and 25-45 parts of water.

The invention discloses a yield increasing and insect pest prevention slow-release fertilizer for rice, and a preparation method thereof, wherein the raw materials comprise, by weight, straw powder, animal manure, plant ash, weathered coal, urea, thiourea, magnesium potassium sulfate fertilizer, calcium superphosphate, phosphorite powder, polyacrylamide, sodium polyacrylate, kaolin, borax, lime powder, dicyandiamide, 3,4-dimethylpyrazole phosphate, N-(n-butyl)thiophosphoric triamide, a microbial agent, potassium fulvate, oxalic acid, xylitol residue, citrus residue, bamboo fiber, sodium dodecyl benzene sulfonate, and a microbial fermentation antibacterial agent. According to the present invention, the yield increasing and insect pest prevention slow-release fertilizer has characteristics of reasonable formula and rich nutrition, can improve the stress resistance of rice, can reduce the incidence of rice pests and diseases, can reduce the fertilizer application cost, can effectively improve the ecological environment of farmlands, can significant improve the yield of rice, and can improve the quality of rice, wherein the nutrient release rate in the fertilizer is basically consistent with the fertilizer requirement law of rice.

The invention discloses a composite fertilizer used for tea trees and capable of improving soil structure. The composite fertilizer comprises the following raw materials by weight: 20 to 35 parts of urea, 15 to 35 parts of monoammonium phosphate, 4 to 16 parts of double superphosphate, 10 to 20 parts of potassium dihydrogen phosphate, 2 to 8 parts of magnesium-potassium sulfate fertilizer, 2.5 to 4.5 parts of trace elements, 30 to 40 parts of a slow release system, 2 to 6 parts of gelatin, 20 to 30 parts of fermented cottonseed meal, 5 to 15 parts of peat soil, 4 to 18 parts of peanut shell powder, 5 to 15 parts of corn cob powder, 30 to 60 parts of peanut meal and 4 to 12 parts of buckwheat flour. The composite fertilizer provided by the invention realizes reasonable compounding of all the nutrient elements needed in the growth of the tea tree, and has excellent water retention, fertilizer preservation and slow release performance; after the composite fertilizer is applied to soil, available nutrients in the composite fertilizer are slowly released to prolong the duration of fertilizer efficiency; harm to soil caused by inorganic fertilizer components in the composite fertilizer is reduced, and soil hardening is avoided; and the composite fertilizer can improve the physical and chemical properties and fertility of soil.

The invention relates to a method for preparing citron medicine yield increase fertilizer. The citron medicine yield increase fertilizer comprises the following components in percentage by weight: 10-16 percent of dry chick dropping, 12-16 percent of dry rabbit dropping, 12-14 percent of compound fertilizer, 10-12 percent of urea, 2-4 percent of zinc fertilizer, 10-12 percent of phosphatic fertilizer, 6-8 percent of rape cake, 2-4 percent of peanut hull powder, 8-10 percent of beanstalk, 4-6 percent of bone powder, 2-4 percent of magnesium potassium sulfate, 2-4 percent of paclobutrazol and 4-6 percent of ethoxyline resin. The method comprises the following steps: combining all the powder together according to a certain proportion; placing the powder into an agitator to stir for 70 minutes; after taking the mixture out, placing the mixture into a pulverizer to pulverize into particles in 60 meshes or so; then placing the particles into the agitator to stir for 160 minutes; after taking the particles out, completely pouring the particles into a fermenting tank; adding dropping water according to the proportion of 1:1.5 to uniformly stir up and down and stack into a pile; tamping the mixture, tightly covering and compacting the mixture by plastic cloth and fermenting for 26 hours.

The invention discloses a rice seedling strengthening agent. The rice seedling strengthening agent comprises the following raw materials in parts by weight: 10-30 parts of an organic material, 1-5 parts of a microbial agent, 10-20 parts of an acid regulating agent, 20-30 parts of ammonium sulfate, 15-25 parts of diammonium phosphate, 5-10 parts of magnesium potassium sulfate, 1-5 parts of a silicon-calcium fertilizer, 0.1-1 part of zinc sulfate, 5-10 parts of humic acid, 0.2-2 parts of a growth regulator, 5-10 parts of seaweed essence and 5-10 parts of distillers' grains. The rice seedling strengthening agent of the invention has the beneficial effects that by enhancing the activity of enzymes in soil of a rice seedbed, nitrogen phosphorus and potassium fertilizers in the soil are activated, and soil fertility is improved; and the supply of plant nutrients is increased, so the growth of rice seedlings is promoted, and finally, the quality of the rice seedlings is improved.

The invention relates to a fruit swelling agent for loquats and jujubes and an application method thereof, which belong to the field of crop cultivation. The fruit swelling agent for loquats and jujubes has a good swelling effect. The fruit swelling agent for loquats and jujubes comprises the following active components in parts by weight: 18-22 parts of magnesium-potassium sulfate, 3-7 parts of powdered rock phosphate, 0.04-0.06 part of phosphate and potassium bacteria and 0.15-0.25 part of gibberellic acid. The fruit swelling agent for loquats and jujubes has the advantages of good swelling effect, convenience for utilization and the like.

The invention discloses a method for producing potassium magnesium sulfate fertilizer and manganese sulfate from manganese-containing fly ash and belongs to the field of resource recycling and chemical industry. The method comprises ball milling, soaking in fertilizer, solid-liquid separation (1), residue washing, soaking in manganese, solid-liquid separation (2), magnesium potassium sulfate solution preparation and manganese sulfate preparation. The method realizes recovery and use of beneficial components in manganese-containing fly ash and solves the problem of environmental pollution caused by the manganese-containing fly ash stacking process. The produced potassium magnesium sulfate fertilizer and manganese sulfate products provide economic benefits for enterprises. The method realizes recycling of manganese-containing fly ash, is simple and practical, is feasible, is especially suitable for the recovery of potassium and has substantial the economic value.

The invention discloses a soil-improving organic fertilizer. The soil-improving organic fertilizer comprises the following raw materials by weight: 80 to 120 parts of animal manur, 5 to 15 parts of plant straw, 2 to 8 parts of sludge from ponds and ditches, 1 to 5 parts of urea, 2 to 6 parts of soybean cake powder, 2 to 4 parts of cottonseed meal, 2 to 5 parts of a castor cake, 1 to 3 parts of furfural residues, 3 to 8 parts of borax, 2 to 7 parts of potassium mineral powder, 1 to 5 parts of talcum powder, 1 to 3 parts of Chinese medical stone powder, 2 to 4 parts of boric acid, 1 to 5 parts of ammonium molybdate, 2 to 6 parts of zinc sulfate, 1 to 4 parts of magnesium potassium sulfate, 2 to 8 parts of calcium superphosphate and 1 to 5 parts of a soil conditioner. The soil conditioner used in the invention can improve the performance of the fertilizer, promote the efficacy of the fertilizer, decompose residual pesticides, promote formation and stabilization of the granular structure of soil, eliminate soil hardening, better soil fertility, turn infertile field into fertile soil and enhance the sustainable production capacity of soil.

The invention discloses a char-based slow-release compound fertilizer special for cotton. Raw materials of the fertilizer include urea, a calcium magnesium phosphate fertilizer, a magnesium-potassium sulfate fertilizer, biochar powder, lignin zinc carbonate, disodium octoborate tetrahydrate, manganese chloride, ammonium ferrous sulfate, europium chloride, neodymium chloride and N-phosphorotriamide. The invention further provides a preparation system and method of the compound fertilizer. The preparation method is simple and efficient, and the raw materials are fully mixed and are good in quality. The obtained compound fertilizer is abundant in nutrients, lasting and coordinated in nutrient element release, and high in nutrient utilization efficiency. The fertilizer can improve physical and chemical properties of soil, improve soil fertility, and promote soil microorganism diversity.

The invention discloses a biological organic fertilizer for preventing tomato bacterial wilt. The biological organic fertilizer comprises the following raw materials in parts by weight: 4-5 parts of urea, 6-8 parts of monoammonium phosphate, 16-18 parts of calcium nitrate, 19-21 parts of magnesium-potassium sulfate, 50-60 parts of an organic fertilizer, 3-5 parts of a trace element fertilizer, 1-3 parts of amino acid, and 1-2 parts of an auxiliary material. The biological organic fertilizer can promote the nutrient requirement during tomato growth process. can regulate synergism between the nutrient elements, activating soil, balancing the microorganism of the soil, coordinating the nutrient supply, increases the anti-bacterial wilt capability for the tomato, and can obviously increase the quality and output of the tomato.

The invention discloses a fertilizer capable of improving soil and realizing high yield of wheat. The fertilizer is prepared from the following raw materials in parts by weight: 10 parts of nitrogenous fertilizer, 10 parts of boric acid, 10 parts of ammonium nitrate, 15 parts of urea, 7 parts of zinc sulfate, 7 parts of magnesium potassium sulfate, 6 parts of calcium superphosphate, 8 parts of sodium polyacrylate, 8 parts of sodium tripolyphosphate, 6 parts of ethylenediamine tetraacetic acid, 6 parts of calcium citrate, 40 parts of livestock excrement, 40 parts of plant ash, 10 parts of cassava dregs, 10 parts of bean pulp powder, 5 parts of potassium mineral powder, 10 parts of wheat straw, 15 parts of radish leaf, 15 parts of melon vegetable vine, 20 parts of peel, 20 parts of lotus leaf, 15 parts of tealeaf residue, 5 parts of soda ash, 12 parts of modified phosphorite powder, 12 parts of insecticidal herbicide and 5 parts of soil conditioner. The fertilizer can be sufficiently provided for wheat growth, wheat growth continuity is ensured, wheat yield is increased, soil can be improved to a certain extent, soil fertility is prevented from decreasing, the soil can be loosened, soil hardening is avoided, and hazardous substances in the soil are eliminated.

The invention discloses a green environment-friendly ecologic organic fertilizer, which is composed of, by mass, 30-40 parts of urea, 10-20 parts of corn straw, 5-10 parts of cow dung, 5-10 parts of chicken manure, 5-10 parts of sweet potato leaves, 2-5 parts of soya-bean cake, 2-5 parts of castor cake, 2-5 parts of plant ash, 2-5 parts of bentonite, 1-3 parts of organic phosphorus fertilizer, 2-5parts of magnesium potassium sulfate, and 1-3 parts of a fermenting agent. The fertilizer can improve soil, is low in cost, has simple process, is free of residue and pollution, can effectively promote growth of plants, has high economic benefit, and has high practical promotion value.