108 results about "Potassium magnesium sulfate" patented technology

The invention discloses an organic-inorganic compound fertilizer for corn, which is prepared from the following raw materials in parts by weight: 25-35 parts of calcium nitrate, 30-45 parts of ammonium sulfate, 20-28 parts of diammonium phosphate, 15-25 parts of potassium nitrate, 1-3 parts of calcium molybdate, 0.5-1.8 parts of manganous nitrate, 1.5-2.5 parts of potassium magnesium sulfate fertilizer, 0.5-1.2 parts of zinc sulfate, 1-3 parts of sodium borate, 3-7 parts of carboxymethyl cellulose, 1-2 parts of wood vinegar, 15-20 parts of composite synergist, 15-30 parts of fermented tobacco stem, 20-40 parts of plant ash, 5-15 parts of corn straw, 20-28 parts of rice hull powder, 15-23 parts of rape seed cake, 5-10 parts of linter pulp, 8-13 parts of silkworm litter, 5-12 parts of bamboo charcoal, 2-8 parts of diatomite, 10-15 parts of attapulgite powder, 3-8 parts of coal gangue, 2-7 parts of weathered coal, 2-8 parts of ground phosphorite and 5-10 parts of potassium ore powder. The organic-inorganic compound fertilizer for corn can improve the soil, has abundant nutrient substances, and can effectively reduce diseases.

The invention relates to a process for producing a potash magnesium sulphate fertilizer through secondary conversion and flotation method, comprising the following steps of: raw ore crushing, primary conversion, filtration, secondary conversion, mixture making, floatation, filtration, drying and packaging. The process adopts secondary conversion to make potassium-bearing mineral in potash-magnesia mixed salt completely convert into schoenite at a normal temperature, which avoids potassium element from losing in ore tailing because of incomplete conversion; secondary mother liquor is recycled so as to reduce the loss of the potassium element in discharged tail washings, thereby greatly improving recovery rate of the potassium element; and the process has the advantages of short process flow, energy conservation and simple operation, etc.

The invention relates to method for extracting schoenite of high purity from the raw material such as potassium magnesium sulfate subtype brine, sea salt bitter brine, lake salt, well salt brine, belonging to the salt chemistry industry, characterized in that potassium mixed with salt is wetly ground and crushed to remove the free magnesium chloride; potassium compound is discomposed by adding water; the magnesium chloride is dissolved and removed to obtain crude schoenite with sodium; the thermosol recrystallizing method is adopted to obtain large particle schoenite and at the same time separate sodium salt under the condition that compound growth substance and denaturant are added,. The novel process adopts the crystallization method to remove magnesium chloride in liquid phase and sieve the sodium salt in solid phase; developing a new conception for preparing the schoenite from the potassium mixed salt. Recycling rate of the potassium is higher than that of all kings of methods known at present and product grade can reach 99.5 percent with the best product quality in the world; the prepared large particle schoenite with high purity can be used as the raw material for producing potassium sulfate with high purity.

A process for producing potassium magnesium sulfate, comprising reacting sulfuric acid with potassium chloride and magnesium chloride at a temperature in a range comprised between about 100 and about 160° C., thereby producing potassium magnesium sulfate and hydrochloric acid, the sulfuric acid being reacted with potassium chloride and magnesium chloride simultaneously or sequentially.

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 special biomass charcoal-based composite fertilizer for corn. The special biomass charcoal-based composite fertilizer for the corn comprises the following components in parts by weight: 7-15 parts of potassium magnesium sulfate fertilizer, 3-7 parts of potassium chloride, 5-13 parts of fertilizer-grade calcium hydrogen phosphate, 15-20 parts of urea phosphate, 40-50 parts of powdery urea, 6-9 parts of rapeseed straw charcoal powder, 0.2-0.8 part of sodium silicate, 0.05-0.47 part of EDTA (ethylenediaminetetraacetic acid) chelated zinc, 0.05-1 part of EDTA chelated manganese and 1-7 parts of auxiliary materials. The invention further discloses a preparation method of the special biomass charcoal-based composite fertilizer for the corn. After the special biomass charcoal-based composite fertilizer for the corn, disclosed by the invention, is applied, the soil can be effectively improved and fertilized, the content of organic matters in the soil is increased, the soil bulk density is reduced, and the water-retaining and fertilizer-keeping capability of the soil is improved; furthermore, the utilization efficiency of fertilizer nutrients is relatively high, the release of nutrient elements is coordinated and lasting, the nutrients can be supplied to the corn in a relatively comprehensive and balanced manner, the yield of the corn is significantly improved, the quality of the corn is improved, and the economic benefits are obvious.

The invention relates to tobacco floating seedling culture nutrient solution and a seedling culture method by using the same. The invention belongs to nutrient solution for plant growth and particularly relates to floating seedling culture nutrient solution (containing organic and inorganic nitrogen) for pollution-free tobacco leaf production and a seedling culture method by using the floating seedling culture nutrient solution. 1000kg of nutrient solution contains the following raw materials by weight: 750-850kg of liquid organic fertilizer, 165-185kg of organic potassium water-soluble fertilizer, 20-30kg of diammonium hydrogen phosphate, 4-6kg of potassium magnesium sulfate and 0.2-0.3kg of borax anhydrous, wherein in the liquid organic fertilizer, the weight percentage of organic nitrogen is 0.15-0.25 percent, the weight percentage of organic matter is 2-3.5 percent, the weight percentage of humic acid is 1.5-2 percent, the weight percentage of iron is 0.035-0.050 percent and the content of zinc is 30-45mg / kg. The nutrient solution provided by the invention can provide organic and inorganic nutrients for tobacco seedling growth at proper time, the cultured tobacco seedlings grow robustly, the production method is compliant with the pollution-free production standard and the nutrient solution can be directly used for pollution-free tobacco leaf production.

The invention discloses a cherry slow-release dedicated fertilizer, and belongs to the chemical fertilizer field. The cherry slow-release dedicated fertilizer mainly includes the following raw materials in parts by mass: 20-25 parts of animal dung, 10-15 parts of maize straw ash, 10-15 parts of a traditional Chinese medicine mixed powder, 14-20 parts of potassium magnesium sulfate, 14-20 parts of calcium superphosphate, 10-15 parts of urea, 10-15 parts of zinc sulfate, 2-6 parts of an organic fertilizer leavening agent, and 2-6 parts of beta-cyclodextrin. The traditional Chinese medicine mixed powder includes 2 parts of rhizoma coptidis, 3 parts of plantain seed, 3 parts of gingko leaf and 4 parts of aloe. With use of the fertilizer provided by the invention, nutrient substance needs of cherry in different growth periods can be met, the yield and quality of the cherry are improved, in addition, the ecological balance of soil can be maintained, and the damage of chemical fertilizers to the soil is reduced.

The invention relates to the field of fertilizer, in particular to a combined fertilizer and a preparation method of the combined fertilizer. The combined fertilizer is made by mixing an organic fertilizer with the mass ratio being 50-75wt% and a chemical fertilizer with the mass ratio being 25-50wt%. The chemical fertilizer comprises urea, monoammonium phosphate, potassium magnesium sulfate and a silicon calcium fertilizer. The organic fertilizer is made by steps of mixing crushed haulm and straw with animal feces and agitating and fermenting the mixture at high temperature. Chemical fertilizer is added into the organic fertilizer and the mixture is agitated to prepare the particle combined fertilizer. The combined fertilizer provided by the invention is beneficial for yield increase of plants, and is in particular suitable for fruit tree plants.

The invention discloses a high-performance fertilizer special for corn, comprising, by weight, 40 to 60 parts of urea, 20 to 40 parts of monoammonium phosphate, 15 to 30 parts of concentrated superphosphate, 20 to 50 parts of monopotassium phosphate, 1 to 2 parts of zinc sulfate, 1 to 2 parts of ferrous sulfate, 1 to 3 parts of potassium magnesium sulfate fertilizer, 1 to 2 parts of ammonium molybdate, 1 to 2 parts of boric acid, 5 to 10 parts of carboxymethyl cellulose, 1 to 3 parts of pyroligneous liquor, 5 to 10 parts of compound synergist, 10 to 20 parts of fermented tobacco stem, 15 to 20 parts of plant ash, 20 to 30 parts of straw, 10 to 30 parts of corncob, 5 to 12 parts of rape seed cake, 8 to 14 parts of wheat bran, 5 to 10 parts of biotitite, 2 to 7 parts of bamboo charcoal, 1 to 4 parts of oil shale, 5 to 9 parts of attapulgite powder, 2 to 7 parts of coal gangue, 5 to 9 parts of weathered coal, 1 to 5 parts of powdered rock phosphate, and 2 to 9 parts of potassium mineral powder. The high-performance fertilizer is capable of improving soil, rich in nutrition and effective in reducing disease damage.

The invention discloses a production method of a potash magnesium sulfate fertilizer. According to the production method, potassium chloride, concentrated sulfuric acid and magnesium oxide are taken as raw materials; the potassium chloride reacts with the concentrated sulfuric acid to obtain potassium hydrogen sulfate slurry; the potassium hydrogen sulfate slurry reacts with a magnesium oxide slurry to obtain potash magnesium sulfate slurry, and finally, the potash magnesium sulfate slurry is cooled, crushed and dried to obtain the potash magnesium sulfate fertilizer. The preparation method of the potash magnesium sulfate fertilizer is wide in raw material source, high in product yield and low in production cost. A potassium chloride low-temperature transformation production process is adopted, the raw materials are added according to a formula in batches, the process flow is simple and easy to control, and the quality of the product can be completely guaranteed; and the grade of the obtained potash magnesium sulfate fertilizer is up to or exceeds the national potash magnesium sulfate fertilizer first-grade standard.

The invention discloses a biological seedling strengthening agent capable of enhancing rice stress resistance and a preparation method of the seedling strengthening agent, and belongs to the technicalfield of agricultural production. The seedling strengthening agent comprises, by weight, 5-20 parts of biological bacterium agents, 5-40 parts of distillers' grains, 10-30 parts of urea, 2-10 parts of potassium magnesium sulfate, 6-15 parts of calcium superphosphate, 0.1-1 part of paclobutrazol and 0.1-1 part of naphthylacetic acid. Biological bacterium agent strains are streptomyces albus, and the collection number is CGMCC No.15117. The biological seedling strengthening agent is safer to use and cannot generate chemical injury. Low-temperature resistance of rice can be enhanced, normal growth of the rice cannot be affected by low temperature, the distillers' grains are changed into wealth, soil is adjusted by acidity of the biological seedling strengthening agent, and nutrition is provided for the rice by the aid of medium trace elements in the biological seedling strengthening agent.

The invention discloses compound fertilizer capable of improving peach quality. The compound fertilizer is prepared from the following raw materials in parts by weight: 40-60 parts of urea, 10-20 parts of monoammonium phosphate, 5-12 parts of triple superphosphate, 10-30 parts of monopotassium phosphate, 10-18 parts of potash magnesium sulphate fertilizer, 40-80 parts of rape seed cake, 5-15 parts of fermented tobacco stem, 4-10 parts of plant ash, 10-20 parts of straw, 10-18 parts of cottonseed meal, 5-12 parts of wheat bran, 10-20 parts of humic acid compound medical stone, 2-4 parts of bamboo charcoal, 1-3 parts of oil shale, 2-8 parts of coal gangue, 2-4 parts of decomposed coal, 0.15-0.6 part of zinc sulfate, 0.1-0.6 part of ferrous sulfate, 0.2-0.8 part of ammonium molybdate, 0.1-0.8 part of boracic acid and 2-8 parts of carboxymethylcellulose.

The invention discloses a special balanced-nutrient fertilizer for the oil tea whole growth period. The fertilizer is prepared from the following raw materials in parts by weight: 18-22 parts of potassium sulfate magnesium fertilizer, 10-25 parts of ammonia water, 15-35 parts of calcium nitrate, 0.5-1 part of organobentonite, 1.5-2.5 parts of fly ash, 0.5-1 part of zinc chloride, 3-7 parts of attapulgite clay, 4-8 parts of dolomite powder, 2-5 parts of kaolin, 1.5-2.5 parts of corn straw, 6-12 parts of pig viscera, 4-12 parts of coating agent, 15-35 parts of bone slag, 10-20 parts of fermented peanut pulp, 0.4-1 part of composite bacterium, 1.5-2.5 parts of clay and 1.5-2.5 parts of fatty acid monoglyceride. The fertilizer can be matched with the oil tea growth regulation nutrient release rate, has favorable slow-release effects, is suitable for the demands of oil tea for the nutrients in the whole growth period, can improve the soil structure and soil permeability, effectively improves the coating hardness and toughness, and can not be easily dispersed or easily crack under the condition of certain humidity.

The invention provides a method and a system for recycling graphene waste sulfuric acid, and relates to the technical field of resource environments. The method comprises the following steps: carryingout a neutralizing reaction on the graphene waste sulfuric acid and magnesium oxide, oxidizing the obtained reaction product with an oxidant, and carrying out flocculation treatment to obtain a precipitate and a filtrate; carrying out cyclic concentration, crystallization and separation on the filtrate until the mass concentration of potassium sulfate in a separation liquid obtained after separation is equal to or more than 10%, using the separation liquid with the potassium sulfate mass concentration of 10% or more as a first mother liquor, and separating a solid obtained after the separation to obtain magnesium sulfate; and sequentially co-crystallizing and separating the first mother liquor to obtain potassium magnesium sulfate co-crystals and a second mother liquor, and returning thesecond mother liquor to the cyclic concentration and crystallization step. The graphene waste sulfuric acid is neutralized with the magnesium oxide to obtain magnesium sulfate and potassium magnesiumsulfate, so the recovery of sulfuric acid and potassium ions is achieved; and manganese ions in the graphene waste acid are recovered by an oxidation process. The method and the system have the advantages of simple process, recycling of all the elements of the graphene waste sulfuric acid, and significant economic and social benefits.

The invention relates to a polymerized coated fertilizer for reducing pest and disease damage of strawberries by utilizing modified bamboo fiber. The polymerized coated fertilizer is prepared from the following raw materials in parts by weight: 16-24 parts of ammonium sulfate, 1-2 parts of potassium-magnesium sulfate, 7-9 parts of ammonium bicarbonate, 22-28 parts of extruded soybeans, 0.2-0.4 part of enzyme microorganism, 26-29 parts of rapeseed cakes, 18-24 parts of brewer grain, 6-8 parts of molasses, 15-19 parts of potassium sulfate, 17-23 parts of phosphorus pentaoxide, 20-25 parts of dry duck manure, 12-14 parts of corn starch, 32-38 parts of dry rabbit manure, 6-9 parts of EM microbial agent, 11-13 parts of modified bamboo fiber, 2-4 parts of polyvinyl alcohol, 3-4 parts of diatomite, 2-3 parts of nanocarbon, 1-2 parts of zinc sulfate, 3-5 parts of itaconic acid, 1-2 parts of dimethyl tin oxide, 0.2-0.4 part of hydroxy-propyl acrylate, 0.6-1.2 parts of sorbitan monostearate, 0.1-0.3 part of ammonium supersulfate, and a proper amount of water. The fertilizer has water retention property, soil is loosened, the soil quality is improved, and the fertilizer has a good role in inhibiting bacteria.

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 invention relates to the field of composite fertilizers, in particular to a slow-release composite fertilizer capable of preventing crop premature senility and pest and disease damage. The fertilizer is prepared from the following raw materials in parts by weight: 10-15 parts of 1,250-2,000-mesh diatomite, 20-22 parts of diammonium phosphate, 10-12 parts of calcium magnesium phosphate fertilizer, 6-8 parts of borax, 10-12 parts of leftovers in a grape wine plant, 2-3 parts of litsea cubeba leaves, 12-15 parts of germinated brown rice, 12-15 parts of potassium magnesium sulfate, 2-4 parts of ferrous sulfate, 15-18 parts of fermented manure, 4-6 parts of potassium silicate, 1-3 parts of bacillus megatherium, 10-12 parts of yellow bean residues, 13-14 parts of waste mushroom culture materials, 1-3 parts of marigold root water extract, 0.1-0.2 part of artemisia vulgaris oil, 12-15 parts of gelatin, 2-3 parts of animal grease, 1-2 parts of Tween 80, 3-5 parts of magnesium stearate and 4-5 parts of an assistant. The composite fertilizer is rich in raw material type and rich in nutrition; nutrients are double coated with the diatomite and a slow-release coating agent, so that the fertilizer efficiency is relatively lasting; moreover, the composite fertilizer has environment-friendly and safe pest-proof, corrosion-proof and bactericidal effects, so that the soil activity is good, the crop premature senility is hardly caused, the crop yield can be effectively increased, and the crop quality can be effectively improved.

A method for producing potassium-based fertilisers, comprising using potassium acid sulfate as the potassium source, and using sonication in reactions with magnesium silicate or apatite at low temperature, with near quantitative yield, to yield in times of the order of minutes the corresponding potassium magnesium sulfate or potassium di-hydrogen phosphate respectively.

The invention relates to a method for producing potash magnesium sulphate fertilizers with unsaturation brine serving as a flotation medium. The method comprises the following steps of: (1) crushing potassium magnesium mixed salt raw materials with an SO4<2-> / K<+>mass ratio of 1.0-3.5 into a grain size smaller than a 40-mesh taylor sieve to obtain crushed raw materials; (2) adding the raw materials in a floating machine, adding a reverse flotation agent for flotation, respectively obtaining low sodium potassium magnesium mixed salt with a sodium chloride content lower than 10% and flotation froth; and conducting floating adjusting slurry through a low-selection medium to obtain floating slurry with a mass concentration of 10-50%; (3) putting the floating slurry in the floating potassium magnesium mixed salt, filtering and transporting to a reaction tank; and discharging the flotation froth to a tail salt pond for sedimentation to obtain flotation tail liquid; (4) adding water in the low sodium potassium magnesium mixed salt in the reaction tank for stirring to obtain potassium sulphate magnesium fertilizer slurry; and (5) conducting centrifugal filtration on the potassium sulphate magnesium fertilizer slurry to respectively obtain filter cakes and secondary transformed mother liquor, drying the filter cakes to be constant weight to obtain the potash magnesium sulphate fertilizers, and recycling the second turning mother liquor. The method is less in energy consumption, low in cost and good in product crystallinity.

The invention discloses a special fertilizer for pouteria campechiana and a preparation method of the special fertilizer. The special fertilizer is prepared from the following formula components in parts by weight: 20-22 parts of mulberry leaves, 13-15 parts of pine needles, 22-24 parts of an alligator weed green manure, 15-17 parts of broad bean stalks, 10-12 parts of chaff, 7-9 parts of cottonseed meal, 19-21 parts of composted rabbit manure, 18-20 parts of a castor bean cake fertilizer, 13-15 parts of cassava residue, 5-7 parts of a decomposed crop stalk preparation, 6-8 parts of a potassium magnesium sulfate fertilizer, 11-13 parts of ammonium copper phosphate, 4-6 parts of borax and 50-60 parts of water. The special fertilizer disclosed by the invention is rich in nutritional substances and can realize thin and smooth peel, orange pulp and soft texture of the pouteria campechiana; and the special fertilizer contains an organic fertilizer, so that flowering and fruiting of the pouteria campechiana are promoted and the yield is improved.

The invention belongs to the technical field of tobacco planting and particularly relates to a compound for inhibiting tobacco buds and improving potassium in tobacco and an application method thereof. The compound comprises, by mass, 0 .005 to 0.01% of sodium alpha-naphthylate, 0.001 to 0.005% of sodium nitrophenolate, 0.005% to 0.01% of maleic hydrazide potassium salt, 0.01 to 0.05% of potassium magnesium sulfate, 0.1 to 0.25% of potassium dihydrogen phosphate, 0.001 to 0.005% of sodium salicylate and the balance of water. The application method comprises a spraying method and an injection instillation method. When the compound is used for spraying to tobacco leaves, an alkyl glucoside component having a mass fraction of 0.1 to 0.5% should also be used. The invention also provides the multi-effect compound which gets less external environment restriction, can effectively regulate and control the generation of tobacco axillary buds after topping, can increase the potassium content of the tobacco leaves and can enhance the quality of the tobacco. The compound is environmentally friendly, is poisonless and harmless, has no pesticide residues, is easy to use and has good comprehensive effects.

The invention discloses a pitaya water and fertilizer integrated fertilization planting method based on LED light supplementing and flower forcing. The pitaya water and fertilizer integrated fertilization planting method comprises the steps that different fertilizer formulas are adopted for irrigation in different flowering periods, the fertilizer is irrigated along with water, and a tricyclic 18-18-18-boron-containing fertilizer mixed with mineral source chelated nine-element fertilizer and mineral source humic acid is adopted in a spring shoot germination period; a fertilizer formed by mixing monopotassium phosphate, tricyclic 18-18-18-boron-containing mineral source chelated nine-element fertilizer is adopted in the early flowering stage; in the flowering stage and the young fruit stage, a fertilizer formed by mixing monoammonium phosphate, tricyclic 18-18-18-boron-containing fertilizer and organic water-soluble fertilizer is adopted; in the fruit strengthening period, a fertilizer formed by mixing potassium nitrate, calcium magnesium nitrate and an organic water-soluble fertilizer is adopted; and in the flowering and fruiting period, a fertilizer formed by mixing Hengshui Lake 17-17-17 nitro-sulfenyl, natural potassium magnesium sulfate or mineral source chelated nine-element fertilizer and organic water-soluble fertilizer is adopted. According to the pitaya water and fertilizer integrated fertilization planting method based on LED light supplementing and flower forcing, it is ensured that water and fertilizer applied in each stage can be utilized timely and efficiently.

The invention discloses a damp-proof sustained-release organic fertilizer for peach tree planting. The damp-proof sustained-release organic fertilizer comprises cattle manure, rapeseed meal, furfuralresidues, soybean meal, castor cakes, beer distiller's grains, zeolite powder, peat soil, fish bone meal, chitin, shell powder, potassium ore powder, ammonium nitrate, potassium dihydrogen phosphate,urea, urea phosphate, calcium superphosphate, ammonium dihydrogen phosphate, potassium sulfate, potassium magnesium sulfate, potassium nitrate, damp-proof performance additives and sustained-release modified fillers. The organic fertilizer for peach tree planting is excellent in damp-proof performance, high in sustained-release performance and capable of providing rich nutritional substances for peach trees, and the growth efficiency and the survival rate of the peach trees are increased.

The present invention relates to a special carbon-based slow-release nitrogen-potassium fertilizer for flue-cured tobacco. The special carbon-based slow-release nitrogen-potassium fertilizer comprises a biomass granular charcoal and a base fertilizer, wherein the biomass granular charcoal is a rape straw bio-charcoal or corn straw biomass charcoal, the base fertilizer is the mixture of potassium sulfate, potassium nitrate, diammonium hydrogen phosphate, potassium magnesium sulfate and boric acid, the mass ratio of the base fertilizer to the biomass granular charcoal is 7:3, and corn straw or rape straw is carbonized under a 400-450 DEG C anaerobic condition to obtain the biomass granular charcoal. Compared with the existing special fertilizer for flue-cured tobacco, the special carbon-based slow-release nitrogen-potassium fertilizer of the present invention has the following advantages that the slow release effect is good; the raw materials are easy to obtain, and the environment is protected; the quality and the yield of the tobacco can be improved; the environmental protection is achieved, the safety is provided, and after the used biomass granular charcoal is applied into the soil, the physical and chemical structure of the soil can be improved, and the advantages of environmental protection and safety can be provided; and the quality of the product is stable, the particles are uniform and have the particle size of 1-5 mm, the strength of the product particles is high (can achieve more than 30 Newton), and the particles are smooth and complete, are not easily broken during the storage, transportation and circulation process, are not easily agglomerated, and have the good appearance quality.

The invention relates to a premix for reducing diarrhea of lactating piglets and a preparation method and application of the premix. The premix is mainly prepared from, by mass, 5-15 parts of potassium sulfate, 25-70 parts of zeolite, 5-15 parts of beneficial microorganisms, 5-10 parts of selenium yeast, 10-20 parts of glucuronolactone and 5-15 parts of arginine. The preparation method comprises the step that all the raw materials are mixed and stirred. The premix is simple in raw material, the intestinal health of sows is remarkably improved, the detoxification function of the liver is improved, and toxins are discharged out of the body more quickly, so that the influence of the toxins in sow bodies on the health of the lactating piglets is reduced, diarrhea of the piglets is reduced, and the health condition and growth performance of animals are improved.

The invention relates to a special nutrient package fertilizer for Honghua Dajinyuan species tobacco and a preparation method thereof. The nutrient package fertilizer is composed of a base fertilizer and an organic-inorganic compound fertilizer, wherein the base fertilizer comprises the following raw materials in parts by weight: 60-75 parts of oil cake, 5-10 parts of bagasse pith, 0.5-2 parts of Bacillus subtilis, 0.5-2 parts of Thermophilic sporotrichum, 10-15 parts of potassium humate, 10-12 parts of potassium magnesium sulfate and 27-41 parts of water; the organic-inorganic compound fertilizer comprises the following raw materials in parts by weight: 60-75 parts of oil cake, 0.5-2 parts of Bacillus subtilis, 0.5-2 parts of Thermophilic sporotrichum, 1-4 parts of Trichoderma viride, 1-4 parts of Streptomyces jingyangensis, 5-15 parts of potassium humate, 5-10 parts of amino acid, 5-15 parts of potassium nitrate, 10-20 parts of potassium sulfate, 2.5-5 parts of borax, 1.25-2.5 parts of zinc sulfate and 27-41 parts of water; and the special organic-inorganic compound fertilizer contains microbial inoculum and can activate soil microbes, so that molecular nitrogen, phosphorus and potassium in soil are converted into organic nitrogen, phosphorus and potassium which can be easily absorbed by crops under the action of the soil microbes, thus realizing equilibrium absorption of the nutrient elements.

The invention discloses an environment-friendly high-yield bletilla striata special-use fertilizer, which includes, by weight, 20-40 parts of a calcium magnesium phosphate fertilizer, 15-25 parts of potassium chloride, 45-85 parts of urea, 15-25 parts of a potassium magnesium sulfate fertilizer, 0.5-1 part of molybdenum trioxide, 0.3-0.8 parts of a boron-magnesium phosphate fertilizer, 1.5-4 parts of calcium carbonate, 2.5-4.5 parts of dolomite powder, 1.5-4.5 parts of attapulgite clay, 5-10 parts of borax, 10-20 parts of modified sodium lignin sulfonate, 0.005-0.008 parts of bacillus licheniformis, 0.18-0.42 parts of bacillus subtilis, 0.005-0.010 parts of phytase, 10-20 parts of organic bentonite, 25-55 parts of humus, 4-8 parts of rapeseed cake, 3-6 parts of castor residue, 10-20 parts of activated carbon, 5-10 parts of bone residue, and 50-100 parts of water. The fertilizer can release the nutrients according to the requirement of the bletilla striata, is high in utilization rate, can improve the physical and chemical properties of soil and reduces the phenomenon of soil caking.

The invention discloses a method for improving loquat fruit quality, and relates to the technical field of crop cultivation. The method comprises the following steps: S1, fertilizing is carried out, wherein an organic human and animal fertilizer and a composite fertilizer are applied in soil during a flower bud germination stage; CaCl2 is sprayed during a full-bloom stage; a chitin fertilizer is applied in soil during a young fruit stage; and a potassium magnesium sulfate fertilizer is applied in soil before fruit harvesting; S2, pest controlling is carried out, wherein pesticide is sprayed to leaves once or twice respectively at 25-35 days after loquat tree flowering and 3-5 days before loquat fruit bagging; and S3, fruit thinning and bagging are carried out, wherein 2-3 fruits are left on each bunch for a large-fruit type, 3-5 fruits are left on each bunch for a medium-fruit type, and 5-7 fruits are left on each bunch for a small-fruit type; and bagging is carried out immediately after fruit thinning. The method is simple, highly efficient, pollution-free, and green and environment-friendly. With the method, single fruit average weight, edible rate, soluble solid content, soluble sugar content, and vitamin C content are improved. Single fruit average titratable acid content is reduced. Also, the fruits have glossy and bright appearance and good tastes. With the method, the market value of the fruit is improved, and economic benefit is improved.