72results about How to "Accelerate decomposition and conversion" patented technology

The invention relates to a fertilizer and soil conditioner, wherein the compound fertilizer contains a slow-release fertilizer additive adjustable based on soil and plant requirement, which comprises compound microorganism - organic carrier 2-50%, inorganic carrier 1-30%, ureacondensate 1-50%, primary nutrient 1-60%, trace element 1-10%, and inorganic soil conditioner 1-50%.

A method for treating biochemical sludge or poultry and livestock manure by using earthworm belongs to the technical field of earthworm reaction. The method comprises the steps of collecting biochemical sludge or poultry and livestock manure, and adding brown sugar, effective microorganisms (EM) and urea into the biochemical sludge or poultry and livestock manure; transporting the treated biochemical sludge or poultry and livestock manure from the first step to earthworm bed ton bags, and arranging the earthworm bed ton bags on the floor; putting earthworm fry including artificially-fed earthworms and wild earthworms in the earthworm bed ton bags; holding the temperature and humidity of the earthworm bed ton bags; separating the earthworms from the manure treated by using the earthworms; and using the treated manure for planting lawn, sward and raising matrix and greening landscape. The treated manure by the invention meets the standard of organic fertilizer by detection in center for quality supervision and test of fertilizer under the ministry of agriculture.

The invention belongs to the technical field of environmental protection and recycling and relates to a method for promoting anaerobic sludge fermentation to produce short-chain fatty acids. The method comprises the following steps of: (1) putting sludge into a container, discharging the supernatant liquid, and obtaining a sludge sample; and (2) adding reduced iron powder into the sludge sample, filling nitrogen for oxygen displacement in a reactor, sealing the reactor, uniformly mixing substances in the reaction system, controlling the fermentation temperature, and performing anaerobic fermentation. The sludge can be effectively reduced, the environmental pollution is reduced, the sludge can be recycled, and lots of short-chain fatty acids with high utilization values are produced.

The invention relates to an organic fertilizer with the effect of controlling crop diseases and pests and a production method or the organic fertilizer. The organic fertilizer is prepared from the following raw materials in parts by weight: 25-30 parts of leaves of shrubby baeckea, 18-22 parts of cigarette powder, 10-15 parts of tea bran, 3-5 parts of derris trifoliata herbs or roots, 20-25 parts of filter mud of sugarcane, 3-7 parts of quicklime powder, 15-25 parts of yeast liquid, 0.4-0.7 part of a bacillus subtilis preparation and 0.4-0.7 part of a bacillus mucilaginosus preparation. The organic fertilizer with the effect of controlling crop diseases and pests produced by the method has various functions of controlling insects, controlling diseases, promoting growth, regulating, improving stress resistance of crops, increasing sugar agricultural products, improving soil and the like for crop planting. By applying the organic fertilizer, soil pests can be controlled, soil-borne diseases are prevented, nutrients can be balanced, soil environment is improved, crop growth is promoted, crop yield and quality are improved, and the purpose of increasing both production and income is achieved.

The invention relates to a soil fertilization method by directly returning straws to field. The specific operation steps comprise: 1, in a crop harvesting season, using a harvester to harvest straws and crops, reserving low stubbles, collecting crop straws; 2, concentrating crop straws collected in one mu field in 1 / 2 to 1 / 5 mu cultivated land, uniformly laying the straws, spreading lime nitrogen, performing rotary tillage, mixing the crop straws with surface soil, performing rotary tillage twice; fallowing the treated cultivated land for one month, planting crops normally on cultivated land which is not treated; 3, performing second rotary tillage, decomposition and conversion speed of the straws greatly accelerating; 4, fallowing the cultivated land for a crop growing season, the straws fully decomposing and converting into organic materials in the soil and releasing inorganic nutrients, to obtain a fallow field. Straw residual bodies cannot be seen in the soil in the fallow field, and organic material content in the surface soil of the fallow field is improved by more than 8%, soil total nitrogen content is improved by more than 5%, soil alkali-hydrolyzable nitrogen content is improved by more than 5%, and rapidly available potassium content is improved by more than 10%.

The invention discloses a technique of co-processing ecological type rural sewage water and rural organic solid waste. The process comprises that first adjusting supernatant fluid of an anaerobic tank and other sewage water, treating the adjusted sewage water through a tower earthworm ecological filtering tank to reach the national emission standard and blend and anaerobic ferment the lower deposits of the anaerobic tank and the rural organic solid waste in an anaerobic biogas reactor to produce biogas. The produced biogas is utilized as energy resource, the discharged methane residue is utilized as organic fertilizer or fertilizer of breeding earthworm, the obtained earthworm can also be used to adjust the purity of the post-sewage. The invention proceeds ecological and low cost treatment of the rural sewage water and rural organic solid waste via the combined action of the animal and the microorganism, simultaneously, the produced clean biogas and organic fertilizer have multiple functions of improving rural environmental quality, obtaining clean energy resource and simultaneously treating rural sewage water and rural organic solid waste.

The invention discloses an in-situ ecological restoration technology integration system for black and odorous rivers and lakes. The system comprises a water purification microbial preparation, a micro-nano plug flow aerator, a stirrer, an ecological grass water purification unit, a nano-filtration water purification unit, a monitoring and controlling center, a sensor unit, a wireless network unit and a solar photovoltaic power station. The water purification microbial preparation is used for absorbing and mineralizing organic carbon and organic nitrogen, chelating heavy metal and immobilizing soluble phosphate. The micro-nano plug flow aerator is used for carrying out water body oxygenation, aeration and plug flow formation and putting the water purification microbial preparation to achieve nanocrystallization of bubbles. The monitoring and controlling center is used for monitoring water quality indexes on line and automatically correcting control commands according to water quality changes. By means of the system, the concept of only treating water in traditional pollution treatment is broken, a breakthrough is obtained, the self-purification capability of rivers, lakes and shallow seas can be rapidly recovered in a short time, a biologic chain system can be activated, a water ecological benign cycle can be formed, and the purpose of treating wastewater fundamentally can be achieved. The invention further discloses a control method based on the in-situ ecological restoration technology integration system for black and odorous rivers and lakes.

The invention discloses a method for preparing calcium aluminate by synergistic treatment of high-magnesium aluminum ash and fly ash, which comprises the following steps: carrying out wet ball milling on high-magnesium aluminum ash, fly ash and quick lime, and sequentially carrying out washing, solid-liquid separation and roasting treatment on the ball-milled material to obtain a calcium aluminate product. According to the method, a calcium aluminate series product capable of being used for iron and steel smelting desulfurization is obtained by taking the aluminum ash generated in the aluminum smelting processing process as a raw material, so that the comprehensive utilization of hazardous wastes is realized, a relatively high economic value can be obtained, and the method is simple to operate and environment-friendly, and meets the industrial production requirements.

The utility model provides a compound fertilizer used for Honghuadajinyuan cured tobacco, and a preparation method thereof, belonging to the technological field of compound fertilizers. The invention aims at solving the technological problem of providing a compound fertilizer used for Honghuadajinyuan cured tobacco. Tobacco plants can grow well, leaves are wide, tobacco leaves are easy to be baked and the amount of aroma is increased by using the fertilizer. The fertilizer is mainly prepared by 5 portions of bioactive organic substances, 77 portions of inorganic fertilizers and 18 portions of trace elements; total nutrient contents are N accounting for 17.3% to 19.0%, P2O5 accounting for 19.6% to 21.1% and K2O accounting for 60.5% to 61.2%. Tobacco plants can grow well and the growth vigour is prosperous after the compound fertilizer is applied; the output is increased by 9.78%, the tobacco leaves of the rate of the high grade and the middle are increased by 4.9% and the output value is increased by 12.9%; the tobacco leaves are brilliant and oleosus in luster, chemical constituents tend to be coordinate, and sugar-nicotine ratio, nitrogen-nicotine ratio and total nicotine all comply with the quality evaluation standard of raw tobacco chemical constituents.

The invention relates to a biological organic fertilizer. An agricultural waste (chicken manure) is converted into the biological organic fertilizer which is nuisanceless, can be applied to the organic cultivation of paddies, and belongs to the technical field of special biological fertilizers for the paddies. The biological organic fertilizer is formed by uniformly mixing and composting the following raw materials in part by weight by means of microbial fermentation: 5-8 parts of EM (effective microorganism) solid Bo Kathy, 88-92 parts of the chicken manure (with a moisture content of 50%-60%), and 3-4 parts of 1% EM stock solution. The biological organic fertilizer has the advantages that the fermentation technique is simple, the fermentation time is short, the composted biological organic fertilizer has complete nutrition and high fertilizer efficiency, is nuisanceless and can replace the application of a chemical fertilizer and a farm insecticide, the capability of the resistance to the diseases and the insect pests of the paddies can be improved, and the quality of paddy rice is improved; and synchronously, the biological organic fertilizer further has the characteristics that the agricultural surface source pollution is controlled in terms of a source, the ecological environment of a paddy field is protected, and the sustainable development of the production of the paddies is promoted. The biological organic fertilizer has an obvious application effect in the production of organic paddies and has wide market foreground and better economic benefit and environmental benefit.

The invention relates to a functional flower and plant cultivation substrate which comprises components of 40-50 parts of earthworm casts, 10-20 parts of rotten organic fertilizer, 5-10 parts of peat, 5-10 parts of fungus dregs, 3-5 parts of slow release formulations, 0.0005-0.001 part of plant growth inhibitors, and 0.0005-0.001 part of plant growth control inhibitors. The functional flower and plant cultivation substrate has the advantages that activities and outcomes of the earthworms can coordinately produce for plants plant living factors such as water, fertilizer, air, and heat so as to promote the plant growth, increase the plant production, and improve the quality of the plants.

The invention discloses a poly-spirulina peptide biostimulant, and belongs to the field of an agricultural fertilizer synergist. Domesticated and separated fermentation strains are used for fermentingspirulina so as to prepare the poly-spirulina peptide biostimulant; the fermentation strains are any one kind of bacillus subtilis, bacillus licheniformis, bacillus amyloliquefaciens, paenibacillus mucilaginosus and bacillus lateralis. The poly-spirulina peptide biostimulant is mainly prepared through biological fermentation; no chemicals are added; safety and environment protection are realized;the fertilizer utilization rate and the soil enzymatic activity can be improved; medium trace elements in the soil can be supplemented; the crop rooting and nutrition absorption can be promoted; thesoil environment is improved; the harmful bacteria of soil are inhibited.

The invention belongs to the technical field of feed ensiling, and relates to a rice straw ensiling additive based on orthogonal test method optimization design and an optimizing method. The method includes the following steps of firstly, selecting the type of ensiling bacteria, the type of cellulose decomposition bacteria or enzymes and the type of carbon source substances as test factors, and determining evaluating indexes; secondly, selecting a three-factor three-level orthogonal table (L9(33)) according to the levels of all the factors to arrange test combinations and conducting a test; thirdly, analyzing test data through a comprehensive balancing method, and determining the optimal combination scheme, wherein the additive is composed of the ensiling bacteria, the cellulose decomposition bacteria or enzymes and the carbon source substances. The additive can better improve the ensiling efficiency, is convenient to use, reduces the cost, is easy to operate, has the advantages of being critical, neat and comparable, can accelerate the ensiling rice straw ripening time and has the ordinary ensiling mature period of 60 days, and by means of the additive, the ensiling period can beshortened to be 30 days.

The invention discloses a specific liquid fertilizer for beet planting and a preparation method thereof. The liquid fertilizer is prepared from more than 20 raw materials such as medical stone powder, CW strain, honey and captan through twice fermentation. The specific liquid fertilizer for beet planting has the characteristics that the sugar content of beet is remarkably improved, and the sugar content of beet is increased by 1 to 3 percent.

The invention relates to a method for plant-animal-microorganism combined restoration of an abandoned steel rehabilitation hill, belonging to the technical field of ecological restoration. According to the invention, a steel rehabilitation hill is divided into a steel rehabilitation hill foot restoration zone, a steel rehabilitation hill versant restoration zone and a steel rehabilitation hill toprestoration zone, wherein each area adopts different animals, plants and microorganisms. For the steel rehabilitation hill foot restoration zone, the method of restoration via a combination of Xanthoceras sorbifolium Bunge, Haloxylon ammodendron and VA mycorrhizas is adopted; for the steel rehabilitation hill versant restoration zone, the method of restoration via a combination of creepers and earthworms is adopted; and for the steel rehabilitation hill top restoration zone, the method of restoration via a combination of torch trees and AM mycorrhizas is adopted. With the method, the landscape of the steel rehabilitation hill and the surrounding landscape are made beautified, and the quality of water around the steel rehabilitation hill is greatly improved.

The invention discloses a soil remediation method based on modified attapulgite clay. The method comprises the following steps of S1, sampling attapulgite clay raw materials, smashing the attapulgiteclay through a smashing device, and then, adding diluted ammonium hydroxide, a dioctyl sebacate solution, a carbon base material and a remediation solution, wherein the addition mass percentage of diluted ammonium hydroxide is 0.8-1.0%, the addition mass percentage of the dioctyl sebacate solution is 1.0-1.2%, the addition mass percentage of the carbon base material is 0.8-1.5%, and the addition mass percentage of the remediation solution is 0.2-0.3%. The invention relates to the technical field of soil remediation. According to the soil remediation method based on modified attapulgite clay, the modified attapulgite clay is adopted as a soil remediation agent, a layer which is high in adsorption capability, high in adoration rate and capable of effectively adsorbing heavy metal ions in soil can be formed below a contaminated soil layer, the soil remediation solution is sprayed, plants grow to have deep roots and luxuriant leaves, chlorophyll is enhanced, nutrients are abundant, and normal juice and normal taste are recovered; soil contaminations are reduced, and the method is low in carbon and environmentally friendly and no water or fertilizer soil is lost.

The invention discloses a water quality improving microbial agent capable of achieving biological modification and alga culture. The water quality improving microbial agent includes the following rawmaterials: in parts by weight, 10-15 parts of seaweed extract, 20-30 parts of water-soluble organic matter, 30-45 parts of fermented organic matter, 25-30 parts of a microporous protective agent, 3-5parts of alga growth promoting factors and 3-5 parts of a compound bacterial agent. The invention also discloses a preparation method of the water quality improving microbial agent capable of achieving biological modification and alga culture. The water quality improving microbial agent is capable of activating the activity of microorganisms in the water body and improving nutrient circulation, and has the dual effects of promotion of the biological improvement and water quality through combination of two forms of carbon sources, the seaweed extract is contained, and the water quality improving microbial agent has the effect of promotion of the growth of microalgae and water plants at low temperatures, so that excellent water color is formed quickly.

The invention discloses a fertilizer with drought resisting and soil loosening functions and a production method thereof. The fertilizer comprises urea, powdered ammonium phosphate, a powdered potash fertilizer, a humic acid raw material, a water-retaining agent and a soil loosening agent bentonite. The production method comprises the following steps: mixing the urea, the powdered ammonium phosphate, the powdered potash fertilizer, the humic acid raw material, the water-retaining agent and the bentonite raw material; crushing the uniformly mixed raw materials; preparing the crushed raw materials into granules under steam pressure conditions, and drying the prepared granules; cooling the dried granules, and carrying out sieving; or respectively preparing the urea, the powdered ammonium phosphate, the powdered potash fertilizer, the humic acid raw material, the water-retaining agent and the bentonite raw material into granules; and mixing the granules, and carrying out sieving. According to the invention, the characteristics of the chemical fertilizer are changed, the soil structure is improved, the resistance characteristics are enhanced, and the quality of seeds is improved.

The invention belongs to the technical field of distiller's yeast, and particularly discloses glutinous rice fragrant distiller's yeast and preparation thereof. The glutinous rice fragrant distiller's yeast is mainly formed by mixing, fermenting and drying 65-80 parts of basic grain and 40-45 parts of traditional Chinese medicine component. The traditional Chinese medicine component mainly comprises, by weight, 5-10 parts of chrysanthemum flower, 5-10 parts of dried tangerine or orange peel, 4-8 parts of couch grass root, 3-7 parts of cayenne pepper, 3-7 parts of cassia twig, 3-7 parts of pineapple, 3-7 parts of mint, 3-7 parts of honeysuckle flower, 3-6 parts of arabian jasmine flower, 2-6 parts of saffron crocus, 2-5 parts of red date and 1-5 parts of liquorice root. The sandalwood type yeast preparing method is simple and easy to operate, the prepared sandalwood type yeast is stable in quality and safe, the flavor types of baijiu are increased, and the sense organ acceptability of baijiu is effectively improved.

The invention belongs to the technical field of agriculture and discloses an early-maturing cultivation method for small cucumbers. It includes the following steps: (1) Grafting and growing seedlings: the rootstock sowing period is early and mid-December, and the scion is sown 7 to 12 days later than the rootstock; (3) Control temperature; (4) Pruning: use double or three pruning methods; (5) Artificial pollination and fruit retention: the second female flower of the main vine and the first female flower of the side vine are artificially opened. Pollination; (6) harvesting. The harvest period of the early-maturing small cucumbers cultivated by the method of the invention is advanced to the middle and late April, which is 20 to 30 days earlier than the current greenhouse cultivation, and the harvest period avoids the rainy season in southern regions, thereby ensuring high and stable yields. It not only meets the market demand, but also greatly improves the output and economic benefits.

The invention belongs to the technical fields of agricultural soil reconstruction, fertilizer production and the biology, and concretely relates to a p reparation method of regenerated fertilizer for restoring soil, and a soil restoration method. The preparation method comprises the following steps: collecting deposits not polluted by human activities and containing abundant beneficial microbial strains in the virgin forest, used as soil seeds, adding an organic composite fertilizer, an inorganic fertilizer and an EM microbial preparation to the collected soil seeds, uniformly mixing all above materials, putting the obtained mixture in a nutrition pool, and carrying out fermenting multiplication to obtain microbial soil derivation fertilizer seeds; sampling and extracting soil through a geographic coordinate position range, measuring the content of soil to be restored, preparing the regenerated fertilizer for restoring soil, according with restored soil fertility and crop growth, and producing the fertilizer according to a measured soil formula; and applying the produced regenerated fertilizer for restoring soil to the soil to be restored. Beneficial microbes in the soil are massively bred to enhance the fertility of the soil and improve the looseness of the soil.

The invention relates to the technical field of microalgae culture, in particular to a microalgae culture medium and a method for degrading algal toxin. The microalgae culture medium is prepared from potassium hydrogen persulfate, sodium dehydroacetate, sodium citrate, tartaric acid, glacial acetic acid, sodium thiosulfate, lactic streptococci, sodium lauroyl glutamate and Tween. The microalgae culture medium can effectively promote rapid growth and propagation of beneficial microalgae, ensure mass propagation of beneficial microorganisms, accelerate decomposition and conversion of organic matters in the aquaculture process, resist erosion of harmful organisms, reduce algal toxins in a water body, and facilitate improvement of the aquaculture environment and promotion of growth of aquaculture products.

The invention belongs to the technical field of agriculture, and discloses a small wax gourd early-maturing cultivation method. The method comprises the steps of (1) grafting and seedling growing: seeding stocks at early of middle of December, and seeding scions 7-12 days later than the stocks; (2) grafted seedling field planting by using electric heating wires, and a big shed, a middle shed, a small shed and a mulching film to cover the field for thermal insulation and warming; (3) temperature control; (4) pruning by using a dual-vine or tri-vine pruning method; (5) artificial pollination and fruit retention: performing artificial pollination when second pistillate flowers of the main vine and first pistillate flowers of the lateral vine bloom; and (6) harvesting. Compared with greenhouse cultivation in the prior art, the harvest time of early-maturing small wax gourds cultivated by the method is advanced by 20-30 days to mid-to-late April, the plum rain season of the South China is avoided, and high yield and stable yield are ensured. The market demand is satisfied, and the yield and economic benefit are also largely improved.

The invention discloses an organic soluble fertilizer capable of protecting a root system and modifying soil and a preparation method thereof. The organic soluble fertilizer comprises the following components by content: living bacteria larger than or equal to 5 billion per ml, amino acid larger than or equal to 100g / L, humic acid of 40-150 g / L, and calcium and magnesium secondary elements larger than or equal to 30g / L. The method comprises the following steps: performing vacuum evaporation and concentration for humic acid solution containing living bacteria, free amino acid solution and mixture of calcium and magnesium secondary elements to an extent that the living bacteria is larger than or equal to 5 billion per ml, the amino acid is larger than or equal to 100g / L, the humic acid is of 40-150 g / L, and calcium and the magnesium secondary elements are larger than or equal to 30g / L, wherein the evaporating temperature is lower than 50 DEG C. The fertilizer can be directly applied, is convenient and labor-saving, can be easily absorbed by plants in a form of liquid, and has the advantages of improving soil texture and ability of crops resisting disease and insect pests, being capable of protecting plant root system and stimulating plant yield, and being quick in manurial effect, balance in nutrition, and simple in application.

The invention discloses base fertilizer for a water chestnut planting field. The base fertilizer is characterized by being prepared from the following raw materials in percentage by mass: 28 percent to 32 percent of composted cattle pen manure, 8 percent to 12 percent of phosphorus fertilizer, 2 percent to 4 percent of zinc-boron fertilizer, 28 percent to 32 percent of plant ash, 20 percent to 24 percent of oilseed cake and 4 percent to 6 percent of an auxiliary material. The auxiliary material comprises the following components in parts by weight: 14 to 20 parts of modified bamboo powder, 4 to 8 parts of vermiculite powder, 5 to 9 parts of sepiolite powder, 2 to 4 parts of sodium humate, 2 to 4 parts of straw powder and 3 to 5 parts of turf. The modified bamboo powder is prepared by adopting the following process: stirring N,N,N-trimethyl chitosan, glacial acetic acid and water; dropwise adding a silver nitrate solution under a stirring state; then dropwise adding a sodium borohydride solution and stirring to obtain a prefabricated material; stirring gelatin and the water; adding sodium hydroxide and stirring; adjusting the pH (Potential of Hydrogen) value to be 7.1 to 7.5; adding succinic anhydride and stirring; drying and crushing; adding a silane coupling agent, the bamboo powder, the prefabricated material and toluene; raising the temperature, stirring, washing, drying and crushing to obtain the modified bamboo powder.

The invention provides a selenium nutrition medium, a preparation method, a morchella selenium-rich culture method and application, and belongs to the technical field of agriculture. The selenium nutrition medium provided by the invention is prepared from the following raw materials in parts by mass: 50 to 60 parts of selenium nutrition, 6 to 15 parts of organic silicon, 68000 parts of water and 1000000 parts of wheat grains. According to the invention, the selenium nutrition is absorbed into the wheat grains under the assistance of permeability of organic silicon, capture failure of other elements in the culture medium on selenium is avoided, the decomposition and utilization rate of morchella hyphae on the wheat grains is high, the absorption and utilization rate of selenium is increased, and the selenium content of morchella products is increased.

The invention discloses a preparation method of a water-soluble biological organic fertilizer. The preparation method comprises steps of: adding a microbial agent and chlorine-free water into chicken manure in a weight ratio of the chicken manure, the microbial agent to the chlorine-free water of 100:0.4-0.6:300-500; adding the mixture of the chicken manure, the microbial agent and the chlorine-free water in a closed container, adjusting the temperature inside to maintain the temperature at 30-40 DEG C, and fermenting for 7-10 days; heating the fermentation product to dissolve organic components in water and to kill pathogenic bacteria and worm eggs; treating the fermentation product by using ultrasonic wave for 6-8 h to dissolve a large amount of organic materials, and subjecting the fermentation mixture to centrifuge separation by a centrifugal machine and taking the supernate; and subjecting the supernate to sand filtration to obtain the water-soluble biological organic liquid fertilizer. In addition, the preparation method is simple and the operation is convenient. The preparation method of the pollution-free water-soluble biological organic fertilizer with low energy consumption is provided.

The invention discloses a selenium-rich watermelon seedling substrate. The substrate is prepared from, by weight, 40-50 parts of vermicompost, 10-15 parts of vermiculite, 8-10 parts of humus soil, 10-15 parts of molasses fermentation liquor, 3-5 parts of sesames, 3-5 parts of tangerine pith, 3-5 parts of fermentative strains, 20-30 parts of soft sediments with water content of 90%, 15-20 parts of atriplex patens, 3-5 parts of duckweed, 1-2 parts of fosamine ammonium and 10-20 parts of inorganic fertilizer, wherein the fermentative strains comprise microzyme, lactic acid bacteria, actinomycete and bacillus subtilis with the mass ratio of microzyme to lactic acid bacteria to actinomycete to bacillus subtilis being (3-6):(4-6): (2-3):1. The invention further discloses a preparation method of the selenium-rich watermelon seedling substrate. The selenium-rich watermelon seedling substrate is comprehensive in nutritional ingredient and balanced and harmonious in proportion; sufficient and coordinated nutrition can be supplied to watermelons in the whole growth period, and the growth of the watermelons is effectively promoted; the good quality of the watermelons is ensured, the selenium-rich watermelon seedling substrate can also be efficient, and the yield is efficiently improved.

The invention belongs to the technical field of agriculture and discloses a method for cultivating early-maturing persimmons. It includes the following steps: (1) Grafting seedlings: the rootstock sowing period is early and mid-December, and the scion is sown 7 to 12 days later than the rootstock; (3) Control the temperature; (4) Pruning: use double or three pruning methods; (5) Artificial pollination and fruit retention: the second female flower of the main vine and the first female flower of the side vine are artificially opened. Pollination; (6) harvesting. The harvest period of the early-maturing persimmons cultivated by the method of the invention is advanced to the middle and late April, which is 20 to 30 days earlier than the current greenhouse cultivation, and the harvest period avoids the rainy season in southern regions, thereby ensuring high and stable yields. It not only meets the market demand, but also greatly improves the output and economic benefits.