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 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 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 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 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 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 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 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.