361 results about "PHOSPHORUS/POTASSIUM" patented technology

The invention relates to a chemical fertilizer and a production method thereof, in particular to a biological organic inorganic compound fertilizer product and a production method thereof. The biological organic inorganic compound fertilizer product comprises a fertilizer core and a coating in which the fertilizer core is wrapped, wherein the fertilizer core is a particle which is produced by adding humic acid and inorganic nitrogen-phosphorus-potassium raw materials to concentrated waste liquid rich in amino acid, organic matter and other nutrient components, guniting, coating and granulating; the concentrated waste liquid is obtained by treating wastewater of gourmet powder factories; and the coating at least comprises animal oil-fat, starch, bone glue and bacillus components. The product integrates quick, slow and long effects, and integrates organic, inorganic and biological materials. The production method takes the animal oil-fat, the starch and the bone glue which can provide lipid and other nutrients for microorganisms and are easy to degrade as carriers of a bacillus preparation, overcomes the phenomenon that the mixture of the bacillus preparation and other fertilizer components is easy to cause pollution to microbial agents and poison strains.

The invention provides a preparation method of a multielement biological phosphorus-potassium fertilizer. The preparation method comprises the steps of: carrying out mixing, fermenting and low-temperature drying technologies on low and medium grade phosphate rock powder treated by super-fine grinding, low and medium grade potassium-containing rock powder treated by super-fine grinding, organic matter, a compound bacteria preparation and a proper amount of molasses or water to obtain mineral biological phosphorus-potassium fertilizer which is rich in phosphorus and potassium; and then carrying out mixing, pelleting, low-temperature drying and the like on the mineral biological phosphorus-potassium fertilizer and a compound mixed inorganic fertilizer to obtain the multielement biological phosphorus-potassium fertilizer. The multielement biological phosphorus-potassium fertilizer not only improves the conversion rates of low and medium grade phosphate rock and potassium-containing rock, but also has the advantages of organic phosphorus-potassium fertilizer and inorganic phosphorus-potassium fertilizer and overcomes the defects of the organic phosphorus-potassium fertilizer and the inorganic phosphorus-potassium fertilizer at the same time. The preparation method is short in process flow, simple in technology, free from pollution, low in cost, good in fertilizer efficiency and stable in fertilizer efficiency.

The invention discloses a landscaping fine management device based on cloud computing, comprising a control device, a soil nitrogen-phosphorus-potassium detector, a GPS (Global Positioning System) positioning device, a soil humidity sensor, a soil compactness measurer, a vibrating device, a water pipe flow valve, a nitrogen fertilizer bin, a phosphorus fertilizer bin, a potassium fertilizer bin and a cloud computing server; the landscaping fine management device based on cloud computing is provided with the soil nitrogen-phosphorus-potassium detector, so that some elements can be specifically and quantitatively added into soil; hard soil can be loosened under the action of the vibrating device via the soil compactness measurer and the vibrating device; the device realizes fine management, and quantitatively supplies elements to the soil, so that plants are grown in the most appropriate soil; and the vibrating device is used for loosening soil via electrical energy generated by branches swinging in air, so that the device is energy-saving and environment-friendly.

The invention relates to nitrile ester phosphorus potassium and amine actively organic fertilizer. The invention is characterized in that the high quality, high effect and environmental protection fertilizer is produced through wastes such as city organic waste, crop stalk, weed, rice hull, residual bone, residual fur, residual fat, dry cake, chisel, shell and eggshell based on resource use and environmental protection. The invention has the beneficial effect that the reproducible waste comprises a mass of carbohydrates such as fibrin, lignose, starch, polysaccharide, aliphatic acid, ketone, alcohols, protein, nitrile fatty and aminopeptidase, and organically biogenic salts such as organic nitrogen, phosphor, kalium, silicon, sulfur, autunite, magnesium, iron, manganese, copper, boron, zinc and molybdenum. The organic materials are transformed into active nutrients of a plurality of organic enzyme source functions through solidoid fermentation and zymohydrolysis of a plurality of zymogenic combination floras, and the active nutrients can be completely absorbed by crops. Besides, the invention has the advantages of improving the environment of soil, increasing the antibody of plants, decreasing the environmental pollution, increasing the quality of agricultural products and promoting the healthy lives of human being.

The invention specifically relates to a multifunctional composite microbial fertilizer and a preparation method thereof, belonging to the technical field of composite microbial fertilizers. The multifunctional composite microbial fertilizer is prepared from the following raw materials: a microbial agent, humic acid, an organic fertilizer, pyrethrum powder, inorganic nitrogen-phosphorus-potassium and trace elements. The multifunctional composite microbial fertilizer can provide crops with desired nutrients, reduces the incidence rate of plant diseases and insect pests, has a high live bacterium number, decreases the usage of pesticides and chemical fertilizers and improves the physical and chemical properties of soil, so the output and quality of the crops are improved. Meanwhile, the preparation method for the multifunctional composite microbial fertilizer is simple, easily practicable and convenient to operate.

The invention relates to a fertilization device which comprises a cart, supporting rods, a first motor, an annular sliding rail, sliders, a fixing plate, a mixing box, a bearing block, a first rotating shaft, stirring blades, a gear, a first guide sleeve and the like. A 7-shaped support is welded at the left end of the top of a board of the cart, the supporting rods are bilaterally, symmetrically and vertically welded at the top of the board of the cart on the right of the 7-shaped support, and the top of the board of the cart between the two supporting rods is connected with the first motor in a bolted manner. The orchid cultivation soil fertilization device is used for fertilizing orchid cultivation soil after mixing phosphorus-potassium nitrate fertilizers with water.

The invention discloses a compound fertilizer capable of reducing cadmium and lead contents in slightly-polluted farmland corn and a preparation method thereof. The compound fertilizer is prepared by urea, ammonium chloride, ammonium sulfate, ammonium nitrate, diammonium phosphate, phosphorus-potassium nitrate fertilizer, calcium magnesium phosphate fertilizer, potassium chloride, zinc sulfate, agricultural nitric acid rare earth, sepiolite, kaolin, bentonite and power plant furnace slag in proportion. The preparation method includes the following steps: A. preparation of the sepiolite; B. preparation of the kaolin; C. preparation of the bentonite; D. preparation of the power plant furnace slag; and E. mixing raw materials prepared in the steps with the urea, the ammonium chloride, the ammonium sulfate, the ammonium nitrate, the diammonium phosphate, the phosphorus-potassium nitrate fertilizer, the calcium magnesium phosphate fertilizer, the potassium chloride, the zinc sulfate and the agricultural nitric acid rare earth, and processing the mixture into the compound fertilizer. The invention can effectively reduce active cadmium and lead in soil as well as the cadmium and lead contents in corn, and enable the active cadmium and lead contents in soil of slightly-polluted farmland to be reduced by 48.8-54.2% and 38.1-44.7% respectively, and the cadmium and lead contents in the corn to be reduced by 44.3-49.3% and 43.4-45.4% respectively. The invention is suitable for being generalized in vast heavy metal contaminated areas.

A novel phosphatic/potash compound fertilizer and a method of producing the same are provided for improving the solubility of phosphate components contained in an incinerated ash residue of chicken droppings for efficient utilization of the ash residue, with the alkalis of the lime component origin being neutralized. Thus, at least one powder selected from among a basic potassium compound powder and a water-granulated blast furnace slag powder is admixed with an incinerated ash residue of chicken droppings, a mineral acid is added to the mixture and reactions are allowed to proceed to maintain the reaction system at a high temperature by utilizing the heat of neutralization generated by the reaction between the basic potassium compound and/or water-granulated blast furnace slag powder and the mineral acid thereby convert hardly soluble phosphatic components contained in the incinerated chicken dropping ash residue to effective components improved in solubility, while maintaining the reaction mixture at about neutrality or weak acidity.

The invention discloses a fertilizer for peanuts. The fertilizer is characterized by being prepared from 5-15 parts (in parts by weight) of microbial agent, 5-15 parts of pesticidal microbial agent, 0.5-1 part of zinc sulfate, 0.5-1 part of borax, 1-2 parts of magnesium sulfate, 5-15 parts of clay and 50-80 parts of chemical fertilizer rich in nitrogen, phosphor and potassium. The fertilizer for peanuts disclosed by the invention achieves effect of activating phosphor potassium and medium trace elements and effects of other biological bacteria, increases functions of the fertilizer, has pesticidal effect, and can promote formation of peanut rhizobium and improve fertilizer supply effect of the fertilizer.

The invention discloses a grape planting method. The method includes the following steps of firstly, cultivating seedlings; secondly, watering the seedlings; thirdly, applying farmyard manure; fourthly, applying potassium sulphate compound fertilizer and nitrogen fertilizer one week before sprouting; fifthly, applying 20-25 kg of potassium sulphate compound fertilizer, nitrogen fertilizer and phosphatic fertilizer after flowering; sixthly, applying nitrogen fertilizer when fruits are as large as mung beans; seventhly, covering fruits with hollow double-color mulching film covers after the fruits are borne; eighthly, applying nitrogen fertilizer and phosphorus potassium fertilizer in the fruit coloring initial period. According to the grape planting method, by covering the fruits with the double-color mulching film covers after the fruits are borne, rainwater can be prevented from immersing surfaces of grapes, the wind resistance and rain resistance are high, light permeability is high, insect removal and disease resistance are achieved, the photosynthesis strength is improved, heat preservation and moisture preservation are achieved, grape growth is accelerated, the yield and income are increased, and mature grapes are low in internal pesticide residue, rich in nutrient, fresh in color and luster, good in taste, better in color and more sufficient in sugar.

The invention relates to antagonistic bacteria NJL-14 for preventing and controlling continuous-cropping tobacco bacterial wilt, which belongs to intensive agricultural production technology. According to the invention, a microbial organic fertilizer is produced from two antagonistic bacteria (brevibacillus brevis NJL-25 and bacillus cereus NJL-14) which have a remarkable antagonistic function on pathogenic bacteria of the tobacco bacterial wilt and are obtained by separation, and organic fertilizers, wherein 1 gram of the microbial organic fertilizer contains more than 1*10<10> NJL-25 and 1*10<10> NJL-14, and has the total nitrogen content of 4 to 5 percent (organic nitrogen content is over 90 percent), the total nitrogen-phosphorus-potassium content of 6 to 10 percent and the content of organic matters of 30 to 35 percent. Tests prove that the microbial organic fertilizer, after being applied to soil, can fast multiply the antagonistic bacteria to form a dominant group in the soil, achieve the biological prevention and control rate of over 97.6 percent on the bacterial wilt in the soil with the tobacco bacterial wilt, and prevent the occurrence of the continuous-cropping tobacco bacterial wilt to a great extent after being applied for long to the soil without continuous cropping obstacles.

The invention discloses water-soluble compound fertilizer synergist. The water-soluble compound fertilizer synergist is fine gel particle formed by polymerizing an inorganic substrate, carboxylic acid and an amide material and comprises the following components in parts by weight: 50-60 parts of inorganic substrate, 25-30 parts of carboxylic acid, 5-15 parts of amide material, 3-5 parts of catalyst, 1-3 parts of tackifier and 0.5-1 part of amino acid compound. The synergist is formed through gel-type inorganic substrate material acidification, amide polymerization and fine coating; the fine gel particle can be rapidly dispersed in water; the synergist has the efficacy of chelate adsorption, is capable of enriching and adsorbing various fertilizer nutrients and has the effects of adsorbing and collecting ammonia, ammonium nitrogen, nitrate, soluble phosphorus and potassium ions; the synergist is attached to roots of plants and has the advantages of providing a local microcirculation system, promoting the nutrient absorption of the plants, preventing the nutrient loss, avoiding the defects that N element is easy to volatilize, P element is easy to fix and K element is easy to leak at the same time and improving the effect of water-soluble compound fertilizers by a large margin.

The invention relates to bacillus subtilis HG-15 with salt resistance, disease prevention and growth promotion and inoculant preparation and application thereof. The HG-15 strain has high salt resistance and is capable of stabilizing colonization in saline alkali soil; the HG-15 strain can survive in liquid water-soluble fertilizer and solid water-soluble fertilizer and maintain a high survival rate, and the HG-15 strain, can be mixed with organic fertilizer, compound fertilizer, water-soluble fertilizer, controlled-release fertilizer and the like for use; the strain has a wide antibacterial spectrum and has a good control effect on root rot diseases of crops such as wheat, corn, vegetables and fruit trees and other soil-borne diseases; the contents of available phosphorus and available potassium in soil can be significantly improved, and thus the application amounts of phosphorus chemical fertilizer and potassium chemical fertilizer are reduced; the strain has excellent fermentation characters, and an inoculant preparation technology is simple and low in cost, and industrial production and transportation are facilitated.

The invention relates to an antagonist bacterium which can overcome or eliminate a hot pepper epidemic disease and produced microbial organic fertilizer thereof, belonging to an intensive agriculture production technology. By the invention, an antagonist bacterium (Bacillus pumilus NJLZ-8) which has an obvious antagonist function on pathogenic oomycetes of the hot pepper continuous cropping epidemic disease is separated; the antagonist bacterium is mixed with organic fertilizer to prepare microbial organic fertilizer; and the fertilizer contains more than 1*108 antagonist microorganisms per gram, 4-5 percent of total nitrogen ( more than 90 percent of organic nitrogen), 6-10 percent of total nitrogen-phosphorus-potassium nutrients and 30-35 percent of organic matter. Proved by tests, the microbial organic fertilizer can rapidly breed antagonist bacteria after being applied into soil, form a preponderant group in the soil and has more than 80 percent of biological preventing and treating rate on the hot pepper epidemic disease in the soil with serious hot pepper epidemic disease. The generation of the hot pepper epidemic disease can be prevented to a large extent by applying the microbial organic fertilizer on the soil without forming continuous cropping obstacles for a long time.

The invention discloses a special lecithin-coated slow release fertilizer for cotton. The slow release fertilizer is prepared from the following raw materials: urea, monoammonium phosphate, potassium chloride, ammonium chloride, superphosphate, zinc sulfate, borax, lecithin and amidinothiourea; and the production method of the slow release fertilizer comprises the steps of: firstly, granulating monoammonium phosphate, potassium chloride, ammonium chloride, superphosphate, zinc sulfate, borax and most part of urea (used after fusion) to form inner-layer particles; then spraying mixture of the rest of urea (used after fusion) and amidinothiourea on the inner-layer particles; and coating the outer layer with lecithin. As a sustained-release material (lecithin) and a controlled-release material which is amidinothiourea serving as a urease inhibitor and a nitrification inhibitor are selected and used in the slow release fertilizer, the effective period of a nitrogenous fertilizer is prolonged to 121 days from about 30 days, the effective period of the nitrogenous fertilizer is prolonged greatly, the utilization rate of the nitrogenous fertilizer for cotton is improved greatly, the utilization rate of the nitrogenous fertilizer in a cotton season is improved by 37%, the fixation and the loss of a phosphorus potassium fertilizer are reduced, and the utilization rate of the phosphorus potassium fertilizer in a cotton season is improved by 13% and 5% respectively.

The invention relates to a special controlled-release water soluble fertilizer for grapes and a preparation method of the special controlled-release water soluble fertilizer. The controlled-release water soluble fertilizer is prepared from the following raw materials in parts by weight: 190-230 parts of ammonium nitrate, 40-60 parts of ammonium dihydrogen phosphate, 30-50 parts of triple superphosphate, 90-110 parts of monopotassium phosphate, 230-260 parts of potassium nitrate, 100-130 parts of potassium sulfate, 30-60 parts of chelated medium trace element mixture, 7-10 parts of borax and 3-6 parts of inorganic gel particle. The preparation method comprises the following steps: (1) treating monopotassium phosphate and potassium sulfate by use of the inorganic gel particle to obtain controlled-release monopotassium phosphate and potassium sulfate; and (2) mixing and dispersing the raw material components at a high speed to obtain the controlled-release water soluble fertilizer. According to the special controlled-release water soluble fertilizer for grapes, a part of phosphorus and potassium nutrients in the controlled-release water soluble fertilizer have slow release feature, so that the water soluble fertilizer is in accordance with the law of the nutrient absorption in a grape growth period, the fertilizer efficiency utilization rate of the water soluble fertilizer is improved and the controlled-release water soluble fertilizer has high market application value.

The invention relates to a low-chloride phosphorus potassium fertilizer and a preparation method thereof, in particular to a method for preparing the low-chloride phosphorus potassium fertilizer by melting and sintering potassium chloride, phosphorite powder and quartz sand, and the invention belongs to the production field of phosphorus potassium compound fertilizer. In the method, the potassium chloride, the phosphorite powder, the quartz sand or diatomite, insoluble potassic ore and boric anhydride are used as raw materials; coal, heavy oil or natural gas are used as fuel; or an electric cooker is used as a high-temperature heat source; and the phosphorus potassium fertilizer is produced by melting and sintering in steam atmosphere. The reaction is carried out in a blast furnace, an open hearth or the electric cooker, and the melting temperature is 800-1600 DEG C. The method produces the phosphorus potassium fertilizer by the potassium chloride and the phosphorite powder directly and has simplified process; the prepared phosphorus potassium fertilizer has high total nutrient and the low content of chloride and can be used for chlorophobic crops; the phosphorus potassium fertilizer contains two elements of phosphor and potassium required by the crops in large amount at the same time; the percentage content of K2O is 10%-18%; the percentage content of P2O5 is 15%-30%; the content of chlorine ion is less than 3%; and the total nutrient is 30%-45%.

The invention relates to potassium dihydrogen phosphate prepared by agricultural ammonium phosphate and a water-insoluble phosphorus recovery method thereof; the method is characterized by comprising the following steps: dissolving the agricultural monoammonium phosphate or the diammonium phosphate by utilizing the circulatory potassium dihydrogen phosphate crystal mother liquor to prepare ammonium salt solution of phosphoric acid, filtering the solution, processing ammonium phosphate residues to recover all the phosphorus pentoxide and potassium oxide contained in the residues by utilizing hydrocarbonate, carbonate and/or hydroxide; adding alkaline substances into the ammonium phosphate solution, evaporating and recovering ammonia, meanwhile, obtaining sodium dihydrogen phosphate solution or potassium dihydrogen phosphate solution, after reacting with potassium chloride, filtering the solution to remove sodium chloride, adjusting the pH by phosphoric acid, cooling to obtain potassium dihydrogen phosphate. The steps also comprise: preparing ammonium sulfate by absorbing ammonia by using sulfuric acid, preparing sewage water or water treatment drug by utilizing the residues after recovering phosphorus and potassium. With the method of the invention adopted, any inferior quality ammonium phosphate and the potassium chloride with use value can be used, and phosphorus and potassium has high coefficient of recovery, good quality products, low raw material consumption, low energy consumption, low production cost, removal pollution, and has great technological economic and social benefits.

The invention discloses a foliar fertilizer composed of traditional Chinese medicines, vitamin, and trace element, prepared by maybush, malt, pantotrichum, epimedium, vinegar, vitamin, nitrogen, phosphorus-potassium, calcium, manganese, copper according to a certain proportion. The preparation method is as follows: crushing maybush, malt, pantotrichum, epimedium; using vinegar to dip materials three times; putting materials into the pan with opposite openings; using mud to seal the hole; heating and burning to form carbon; pressing the burned carbon into fine powder; mixing with trace element and vitamin uniformly; preparing powder or granular formulation. After the foliar fertilizer is applied on the rice, the rice yield is increased by 250-350 kg in every mu (6 acre); the wheat yield is increased by 100-200 kg in every mu (6 acre); the rape yield is increased by 50-100 kg in every mu (6 acre); the corn yield is increased by 100-200 kg; the yield-increasing effect is obvious.

The process of producing composite phosphate and potash fertilizer with the stalk ash from stalk power plant belongs to the field of environment protecting and fertilizer producing technology. The composite phosphate and potash fertilizer consists of stalk ash 80-94.8 weight portions, acidity regulator 1.2-10 weight portions, and adhesive 4-12 weight portions. The acidity regulator is two or three of phosphoric acid, sulfuric acid and citric acid; and the adhesive is the composition of magnesia powder, gypsum powder and acrylic resin in the weight ratio of 3-4 to 0.5-2 to 0.1-1.5. The preparation process includes the steps of crushing material, drum palletizing, stoving and packing. The present invention has low fertilizer producing cost and high effective component content in fertilizer, and the fertilizer is suitable for different kinds of soil and different kinds of crops.

The present invention discloses a multi-element comprehensive utilization process for phosphorus-potassium associated ore. The process comprises: firstly, a fluorine-containing compound is used as an additional aid, and a leaching reaction of the phosphorus-potassium associated ore at a low temperature under an acidic condition is implemented, so as to obtain a silica residue and a leachate. The steps of calcium removal, hydrochloric acid distillation and neutralization are then performed successively to the resulting leachate, so as to obtain a calcium sulfate residue, a heavy iron residue, a heavy aluminum residue, a heavy magnesium residue, and a filtrate. The resulting filtrate is then supplemented with phosphorus, evaporated, and concentrated, so as to obtain a high concentration of NPK compound fertilizer. According to the process provided by the present invention, the fluorine-containing compound is used as the additional aid and hydrochloric acid is used as a leaching agent to process the phosphorus-potassium associated ore. Potassium feldspar is decomposed by means of a reaction of villiaumite and an acid to generate hydrofluoric acid in situ, effectively implementing a process of complete decomposition, complete separation and complete utilization. The process has advantages of low energy consumption, a high element leaching rate, and simple subsequent treatment processes, etc. No discharge problem of three waste exists in the treatment process. In addition, the involved process is simple and the reaction conditions are mild, so that the process is easy to implement and is suitable for popularization and application.

The invention discloses a pear pest and disease prevention and control method. The pear pest and disease prevention and control method is characterized by comprising the steps that cultivation management is strengthened, an applied organic fertilizer is increased to improve the disease-resistant ability of tree bodies, intertillage and weed removal are performed in time, accumulated water in an orchard is discharged, the temperature is reduced, the ventilating and light-transmitting capacities are enhanced, a phosphorus potassium fertilizer accounting for no less than 60% of the total fertilizer percentage is applied, and tree trunk whitening is suitable for implementation after leaf falling but before freezing up, wherein the whitened positions are mainly tree trunks; overwintering microbial sources are wiped out, the orchard is thoroughly swept before disease occurrence to remove fallen leaves and fruits in the orchard, the fallen leaves and fruits are destroyed in a centralized mode, and 4 Beaume degrees of lime sulfur is sprayed to eradicate the overwintering microbial sources; after blossom fall of pear trees, one-time foliar spraying is performed every 5-10 days, spraying continues for 3-5 times, and 600-800 times of liquid of 50% Tuzet wettable powder is sprayed for one time before fruit bagging, wherein a foliar spraying agent is prepared by mixing 15% triadimefon and 50% carbendazim according to the ratio of 3:1 and then using 1000-1500 times of water to perform dilution.

The invention relates to a nitrile ester phosphorus potassium amine active fertilizer produced from organic wastes. The nitrile ester phosphorus potassium amine active fertilizer is produced through the following steps of: adding a fermentation microbial inoculum into the organic wastes, selecting appropriate inorganic and organic inducers according to the need of a reproduction enzyme of the fermentation microbial inoculum, metering, blending, crushing and homogenizing according to a mixing ratio, inducing the fermentation microbial inoculum to ferment and thoroughly decompose the organic wastes, and carrying out material matching and blending after fermentation and thorough decomposition to obtain the nitrile ester phosphorus potassium amine active fertilizer.

The invention relates to a nutritional fertilizer for an apple. The nutritional fertilizer comprises an autumn topdressing formula, a pre-bloom topdressing formula and a fruit-expansion topdressing formula. According to the invention, topdressing fertilizers for different stages are respectively prepared; in an autumn topdressing fertilizer, a phosphorus potassium fertilizer is used as a main component, organic fertilizers and trace elements are supplemented, so a fruit tree can store considerable nutrients, which is favorable for later-stage growth and the fruit setting rate of a fruit tree; in a pre-bloom topdressing fertilizer, a nitrogen phosphorus fertilizer is used as a main component, considerable trace elements are supplemented, so growth of branches and leaves and differentiation of flower buds are promoted and the fruit setting rate is increased in virtue of rise of temperature in spring; and in a fruit-expansion topdressing fertilizer, a potash fertilizer is used as a main component to promote fruit expansion, ensure the color and maturation of fruit and improve output and quality, sweetness and taste of the fruit are both good, and income of planters is substantially increased.

The present invention relates to a biological multicomponent phosphorus potassium fertilizer. The raw material for producing said biological multicomponent phosphorus potassium fertilizer is potassium-contained shale, in which the main components are SiO2, P2O5, K2O, B, Zn, Mo, Cn, Fe2O3, Mn, S, Se and Na2O, etc. Its preparation method includes the following steps: breaking natural potassium-contained shale containing the above-mentioned various components, adding phosphorus-decomposing and potassium-decomposing bacterial strains in broken ore powder, stirring and uniformly mixing them and ferment the mixture for 10 days at normal temperature.

A method for producing phosphorus-potassium-silicone-calcium multi-element microporous mineral fertilizer (soil conditioner) by a hydrothermal chemical method comprises the following steps: uniformly mixing finely ground potassium-rich rock, lime and phosphate ore according to the mass percent ratio of (38.5%-52.25%):(31.5%-42.7%):(30%-5%) with water, wherein the water-solid ratio is (1:1)-(3:1); then transferring the slurry into a reaction kettle to make the slurry react for 8-24h under saturated vapor pressure at 160-250DEG C, and naturally cooling a reaction product to room temperature; and drying and crushing the reaction product to obtain the phosphorus-potassium-silicone-calcium multi-element microporous mineral fertilizer (soil conditioner).