128results about How to "Increase fertilizer and water retention performance" patented technology

The invention discloses a biological mixed bacterial fertilizer and a preparation method and application thereof. The biological mixed bacterial fertilizer is prepared from, by weight, 1-20 parts of a compound bacterial agent, 300-400 parts of organic materials, 500-600 parts of inorganic materials, 800-1000 parts of chemical fertilizers, 5-10 parts of trace elements, 300-500 parts of waste liquid, 30-50 parts of amino acid salts and 50-100 parts of additives.

The invention discloses an organic fertilizer for controlling soil salinization of coastal saline soil and killing underground insects and a preparation method thereof. The organic fertilizer provided by the invention comprises, by weight, 300-500 parts of straw compost, 300-500 parts of humic acid and 100-200 parts of a saline-alkali modifier, wherein the straw compost is composed of tobacco straw, livestock and poultry night soil, high-efficiency composite microbial inoculants and urea; and the saline-alkali modifier is composed of gypsum and an attapulgite powder. The organic fertilizer can be used to raise the fertilizer conservation and water retention capability of soil, prolong fertilizer efficiency and supplement beneficial bacteria in soil. With the application of the organic fertilizer, the harm of underground insects in field can be obviously reduced, underground insects are effectively killed, chemical agent amount is reduced, work and cost are saved, and toxicity and side-effect residual quantity of chemical control is reduced. In addition, after the application of the organic fertilizer, the topsoil of coastal saline soil is loosened, unit weight is decreased and the organic carbon content is increased.

The invention discloses a liquid bacterial agent for rooting, which comprises the following raw materials by weight parts: 20-80 parts of concentrated amino acid fermented liquid, 15-30 parts of urea, 5-20 parts of potassium fulvic acid, 10-20 parts of alginic acid, 5-15 parts of chitosan, 10-30 parts of bacillus subtilis, 5-20 parts of Alpha-pimacol, 10-35 parts of sodium nitrophenolate, 1-4 parts of indole butyric acid potassium, 5-15 parts of 5-nitrate and 10-20 parts of calcium nitrate. According to the invention, the liquid bacterial agent contains various high-activity strains including bacillus laterospor, bacillus licheniformis, bacillus subtilis and the like and dozens of high-purity nutritional ingredients. The liquid bacterial agent has super strong activity, and can quickly reach nutrient deficiency parts and bacteria infection parts of crops after being used so as to quickly complement the deficient elements, and can split mycelium and spore and remove soil-borne diseases so as to allow the crops to be quickly back to health. The liquid bacterial agent has the advantages of good water solubility, strong absorption ability, non-public hazard, no residue and no volatility after being used, and can not cause poison damage for the crops in the greenhouse.

The invention belongs to organic fertilizer, and in particular relates to organic fertilizer for killing underground injurious insects and a preparation method thereof. The organic fertilizer comprises the following components in part by weight: 1000 parts of tobacco stalk, 25 to 30 parts of dry livestock manure, 5 to 10 parts of urea and 3 to 5 parts of solid high-efficient microorganism zymogeneous bacteria. The preparation method comprises the following steps that: the tobacco stalk is smashed; the livestock manure is dried and dehydrated; the urea is added to be uniformly mixed; the zymogeneous bacteria is inoculated; the moisture and the pH value are adjusted, fermentation stocks are piled up, and black plastic film covers the fermentation stocks, so the fermentation stocks are undertaken the anaerobic fermentation; after the temperature is increased, the stocks are turned for a plurality of times until the materials are fermented and matured and the size is reduced to two thirds of that of the original stocks; and the fermented stocks are naturally ventilated and dried and are bagged to store. The organic fertilizer has the advantages that the fertilizer efficiency is high, the underground injurious insects can be killed, the content of the organic colloid of the soil is increased after the application of the fertilizer, the fertilizer and water maintaining capacity of the soil is improved, the period of validity of the fertilizer is prolonged, and the probiotics in the soil can be compensated.

The invention discloses a compound soil conditioner and a preparation and use method. The compound soil conditioner comprises the following raw materials by mass percent: 40-60% of decomposed organicfertilizer, 10-20% of fulvic acid, 15-20% of edible mushroom dreg or biogas residue, and 15-20% of a compound microbial agent. The raw materials of the compound soil conditioner are rich, the formulais simple, the cost is low, the effect is good, and the compound soil conditioner is suitable for various types of soils and is convenient for large-area agricultural popularization and application. The compound soil conditioner effectively improves the soil and the soil fertility, the content of organic matters in the soil is increased, the microelement is better promoted to be absorbed by a plant root system, the adverse resistance of the plant is improved, the development of the plant root and the action of the beneficial bacteria are promoted, the ecological environment of the soil is improved, the use amount of a fertilizer is reduced, the utilization rate of the fertilizer is increased, and the quality of an agricultural product is improved.

The invention relates to medium soil produced prepared from active sludge building waste residue and a production method of the medium soil. The production method of the medium soil is characterized by comprising the following steps of: uniformly mixing active sludge, quick lime, ferrous sulfate and magnesium sulfate, carrying out deodorization, sterilization and chelation, drying and crushing; then, carrying out dynamic type high-temperature aerobic fermentation on the crushed mixture, forestry three-residue waste residue, peanut shells and an organic material decomposition agent; drying, grinding and screening the fermented mixed clinker to prepare mixed powder; uniformly mixing the mixed powder with raw materials including building waste residue soil, calcium hydrophosphate, ammonium nitrate, potassium sulphate, amino acid, a root growth promoting agent, potassium polyacrylate and soil improvement agent by utilizing a stirrer and drying, then, packaging into an active sludge building waste residue medium soil product by adopting a full-automatic electronic metering machine. The product has the advantages and effects of containing nitrogen, phosphor, potassium and various trace elements as well as various nutrients of organic acid for meeting the growth needs of plants, having no pollution, low cost and good benefits, and protecting the environment, and saving the land.

The invention discloses a sugar orange container nursery substrate which comprises 40-50 parts of earthworm casts, 10-15 parts of vermiculite, 8-10 parts of perlite, 10-15 parts of molasses fermentation liquor, 3-5 parts of soot, 3-5 parts of luffa stem, 3-5 parts of fermentative strain, 20-30 parts of soft sediment with the moisture content of 90%, 15-20 parts of corncob cellulose, 3-5 parts of houttuynia cordata, 3-5 parts of cactus, 3-5 parts of watermelon peel, 3-5 parts of radix ophiopogonis, 3-5 parts of purslane, 3-5 parts of cucumis hystrix, 1-2 parts of fosamine and 10-20 parts of inorganic fertilizers. The invention also discloses a method for preparing the sugar orange container nursery substrate. The substrate disclosed by the invention is comprehensive in nutritional ingredient and balanced and coordinated in ratio, so that sugar oranges can obtain full and coordinated nutrition supply in the whole growth period, growth of the sugar oranges is effectively promoted, good quality of the sugar oranges is guaranteed, and the yield can be efficiently increased.

The invention discloses a complex microbial agent used for ocean trash fish fermentation, and a preparation method for an enzymatic fish protein amino acid water-soluble fertilizer. The complex microbial agent consists of any three or four types of bacillus licheniformis, bacillus subtilis, bacillus megaterium, bacillus cereus, lactic streptococci and saccharomyces cerevisiae. The preparation method for the enzymatic fish protein amino acid water-soluble fertilizer comprises the following steps of: before ocean trash fishes are transported, the ocean trash fishes are subjected to pretreatmentthrough the complex microbial agent, breaking, enzymolysis, fermentation through the complex microbial agent, separation, filtering and concentration. The enzymatic fish protein amino acid water-soluble fertilizer is rich in various active substances and trace elements, including micromolecule polypeptides, amino acids, vitamins and the like, can meet the nutrition requirements of fruit and vegetable crops, improves the growth performance of fruit and vegetable crops as well as the quality of fruits and vegetables, reduces the use amount of chemical fertilizers, improves the quality of soil, reduces soil problems, including soil secondary salinization and the like, and has a good economic benefit.

The invention relates to a planting method based on total returning of corn straws to a field. The planting method provided by the invention can effectively solve the problem of serious waste of straw resources, and completely eradicates the problems like air pollution, soil surface coking and traffic jam caused by straw burning and random disposal. Meanwhile, through implementation of the method provided by the invention, nutrient elements like nitrogen, phosphorus and potassium in soil are supplemented; soil organic matters are increased; soil fertility is improved; the phenomenon of soil pollution caused by large quantity application of a chemical fertilizer is reduced; the agricultural ecological environment is improved; the sustainable utilization of black soil resources is promoted; and the rapid development of agricultural modernization is pushed.

The invention discloses a high-efficiency microbial organic fertilizer. The high-efficiency microbial organic fertilizer is prepared from the following raw materials: filtered mud, rice bran, peanut bran, molasses, yeast waste solution, a compound fermentation strain and compound fermentation enzyme. The invention also discloses a preparation method of the high-efficiency microbial organic fertilizer. The preparation method comprises a multistage fermentation step, an ageing step and the like. According to the high-efficiency microbial organic fertilizer disclosed by the invention, the prematurity of crops can be promoted, and the yield and the quality are improved; in addition, the use amounts of fertilizer and pesticides are reduced, soil is improved and the hazards of heavy metal to the soil and the crops is eliminated.

The invention provides a dedicated set fertilizer for yellow soil planted tobacco. The dedicated set fertilizer is prepared from a base fertilizer, a hole applied fertilizer and an additional fertilizer, wherein the base fertilizer, the hole applied fertilizer and the additional fertilizer are applied to different growth periods of the tobacco; the base fertilizer is an organic-inorganic compoundfertilizer, the hole applied fertilizer is a nitrate-sulfur compound fertilizer, and the additional fertilizer is a nitrate-sulfur compound fertilizer. A fertilizing method of the dedicated set fertilizer for yellow soil planted tobacco disclosed by the invention comprises the steps: applying the base fertilizer once when a tobacco land is ridged, applying the hole applied fertilizer 15 to 20 daysafter tobacco seedlings are transplanted and applying the additional fertilizer 25 to 30 days after the tobacco seedlings are transplanted. The dedicated set fertilizer disclosed by the invention hasnutrient balance and strong specificity, can meet requirements of the different periods of the tobacco for the nutrients, can improve a soil physical aggregate structure and a soil microbial ecological environment and can improve quality and yield of flue-cured tobacco.

The invention discloses a watermelon planting substrate which is prepared by mixing a component 1 and a component 2. The component 1 is prepared from the following components in parts by weight: platycladus orientalis barks, field soil, a mixture of bentonite and vermiculite, mushroom residues and an inorganic fertilizer; the component 2 is prepared from the following components in parts by weight: masson pines, perlite, a mixture of attapulgite and kaolin, field soil and an inorganic fertilizer. The watermelon planting substrate disclosed by the invention not only is wide in source of raw materials, but also is low in cost. The substrate disclosed by the invention is prepared by independently preparing the component 1 and the component 2 and then mixing the two so as to provide a suitable environment for watermelon seedling cultivation, so that the survival rate of watermelon seedlings can be improved, and growth and development of the seedlings can be further promoted. By adding the treated mixture of bentonite and vermiculite, the loosening and ventilating performances of the substrate are enhanced. The substrate disclosed by the invention can be used for promoting development of a seedling root system, particularly development of lateral roots. Moreover, quick growth recovery and secondary development of the root system of the transplanted seedlings are facilitated.

The invention discloses a special package fertilizer for a sweet pomelo. The special package fertilizer for the sweet pomelo comprises a wintering fertilizer, a spring shoot fertilizer and a fruit expanding fertilizer manured in different growing periods, wherein the wintering fertilizer is an organic-inorganic compound fertilizer, the proportion of the nitrogen to phosphorus to potassium is satisfied, the total nutrient is greater than or equal to 30%, the organic matter is greater than or equal to 15%, the ratio of the nitrate nitrogen in the total nitrogen is greater than or equal to 20%, and the wintering fertilizer comprises the fulvic acid, the amino acid, and the microelements of the magnesium, the boron and the zinc; the spring shoot fertilizer is a nitric sulfenyl compound fertilizer, the proportion of nitrogen to phosphorus to potassium is satisfied, the total nutrient is greater than or equal to 42%, the ratio of the nitrate nitrogen in the total nitrogen is greater than or equal to 40%; and the fruit expanding fertilizer is a nitric sulfenyl compound fertilizer, the proportion of nitrogen to phosphorus to potassium is satisfied, the total nutrient of nitrogen, phosphorus and potassium is greater than or equal to 42%, the ratio of the nitrate nitrogen in the total nitrogen is greater than or equal to 30%. The fertilizing method of the package fertilizer comprises the following steps: fertilizing the wintering fertilizer once after the sweet pomelo fruit is picked; fertilizing the spring shoot fertilizer once when the sweet pomelo is pruned in the next spring; and fertilizing the fruit expanding fertilizer once when the sweet pomelo fruit is borne in the next summer. The package fertilizer is balanced in nutrient, strong in specificity and high in fertilizer efficiency, so that the quality and the yield of the sweet pomelo can be increased.

The invention discloses a method for planting high-yield high-quality blackcurrant. The method specifically comprises the steps of seed selection, seed processing, seed sowing, seedling transplantation and pest control. Seeds are soaked in potassium permanganate solution and then cleaned with clear water instantly, and stirring and soaking are conducted with warm water next, so that seed germination rate is effectively increased and seed germination time is shortened. An adopted seedling raising substrate is balanced in matching, and through interaction of different raw materials, release of nutrients of each raw material can be effectively improved, rich nutrients are provided for growth of seedlings, seedling emergence rate is increased, and robust growth of seedlings is promoted; furthermore, sterilization capacity is high, germ infringement can be effectively inhibited, the disease resistance of seedlings is improved, and the survival rate of seedlings is increased. An adopted pesticide is scientific and reasonable in formula, has efficient sterilization and pesticidal capacity, and can remarkably reduce paranthrene regalis butler attack rate.

The invention discloses a method for preparing a feather-processing residue novel biological organic fertilizer and the steps include: (1) the feather-processing residue is taken as the main raw material, and beneficial organisms flora and water are added; (2) the mixed material is stirred and hermetically fermented; (3) quality is controlled; (4) deodorization is carried out; (5) drying is carried out; (6) the fertilizer is formed and packed The method is characterized in that in the hermetical circumstance, the feather dusts rich in solid proteins are fermented and decomposed in the artificially added beneficial organisms flora, and the fermentation process kills pernicious bacteria and ascarid eggs by utilizing the interaction among bacteria to prepare the novel biological organic fertilizer with a plurality of beneficial flora. The novel biological organic fertilizer thus prepared contains abundant organic matters, beneficial flora and secondary and micro-nutrients, and can, after being applied, effectively improve the structure of soils, enhance the fertilizer conserving capacity and the water retaining capacity of soils, facilitate the releasing of the indissoluble nutrients of soils, improve the feeder capability of soils, adjust (buffer) the PH value of soils and improve the adaptability of soils.

The invention relates to an acid soil regulator with a plant nutrient function and a preparation method thereof. The acid soil regulator is prepared by uniformly mixing basic materials and auxiliary materials, wherein the basic materials are prepared by mixing and fermenting brewer's grains, peat soil, traditional Chinese medicine dregs, soybean meal powder, straw powder, edible fungi dregs, pineapple paste, apple paste, silkworm excrement, proteolytic enzyme, nitrogen-immobilizing bacteria, rhizobium, potassium-decomposing bacteria, cellulose decomposing bacteria, antibiotic producing bacteria and water; the auxiliary materials are prepared by uniformly mixing earthworm manure, charcoal residues, urea, plant ash, lime powder, urea iron complex, and chelated zinc. The preparation method comprises the following steps of A, preparation of the basic materials; B, preparation of the auxiliary materials; C, preparation of the soil regulator. The acid soil regulator has the advantages that multiple rich and absorbable nutrients are provided for the plant growth, the problem of soil caking is effectively solved, the air ventilating property of the soil is improved, the acidity of the soilis reduced, and the fertilizer-maintaining and water-maintaining ability of the soil is enhanced. The preparation method has the advantages that the preparation method is simple, the implementing iseasy, the investment cost is low, and the preparation method is suitable for large-area popularizing.

The invention provides a method for producing an environmentally-friendly full-degradable liquid mulch film capable of turning into a fertilizer by using coal humic acid. The process comprises the following steps: finely selecting weathered coal, brown coal, peat or rogued turf, removing impurities, and then adding the coal into a crusher and crushing the coal into coal powder with the grain size of 100-150 meshes; adding raw materials into a reaction kettle in a raw material weight ratio of coal powder to potassium hydroxide to potassium carbonate to water equal to (100-120):(0.2-0.7):(0.2-0.6):(200-320), stirring, heating the mixture, standing for settling, and then taking liquid supernatant, thereby acquiring a potassium humate solution; and enabling raw materials to react in a raw material weight ratio of potassium humate solution to boric acid to potassium silicate to cellulose to cross-linking agent to water to propylene glycol monomethyl etheracetate to ammonium nitrate equal to (10-12):(1.8-2.5):(1.2-1.7):(0.15-0.17):(0.25-0.27):(20-30):(0.2-0.3):(0.1-0.2), thereby generating the environmentally-friendly full-degradable liquid mulch film capable of turning into the fertilizer. The process provided by the invention is used for producing the environmentally-friendly full-degradable liquid mulch film by using coal humic acid. After being used, the liquid mulch film is free from being cleared away and is turned into the fertilizer which is absorbed by crops, thereby solving the 'plastic pollution' problem of plastic mulch films.

The invention belongs to the technical field of plant planting, and particularly relates to a planting method of polygonum multiflorum. The planting method is characterized by comprising the following steps of (1) land arrangement before planting; (2) cuttage and culture of seedlings; (3) field management; (4) control of pests and diseases; (5) harvesting. The planting method has the advantages that the output of the polygonum multiflorum is obviously improved, the planting method is simple, the planting cost is low, and the quality is stable.

The invention discloses a rice ridge-pulverization ecological and efficient cultivation method. The rice ridge-pulverization ecological and efficient cultivation method comprises the steps that an auger-bit machine enters soil and vertically rotates, wherein the machine enters the soil to the depth of 25-30 cm; ridge-pulverization soil drilling and fertilization are carried out at the same time, and the land is not harrowed so that bottom deep-layer soil will not be disturbed afterwards; meanwhile, ridge-pulverization deep rotary tillage does not need to be conducted again when second rice crop is planted, no tillage or only 3-4 cm shallow tillage is needed, stratification and air permeability of the bottom soil are kept, and field farm operation such as cultivation, weed control, fertilization, pesticide application and water management is conducted in a cooperative mode. The rice ridge-pulverization ecological and efficient cultivation method can effectively solve the problem that a traditional farming mode easily causes soil environmental degradation, effectively improve labor efficiency of ridge-pulverization cultivation, achieve the effect that deep ploughing is not needed within 3-4 years each time ridge-pulverization is conducted, and keep the stable yield and the yield increase of rice continuously, thereby having important value and significance in the field of rice cultivation.

The invention discloses a high-yield planting method for greenhouse watermelons, and relates to the technical field of watermelon planting. The method comprises the following steps of 1 land selection and preparation, 2 planting greenhouse building, 3 planing furrow opening, 4 seed soaking and germination accelerating, 5 stock cultivating, 6 seed sowing and seedbed construction, 7 grafting and field planting, 8 pollination and fruiting management and 9 harvesting. The method is low in cost and high in universality, the survival rate of planting stocks can be effectively increased, and meanwhile the pest and disease damage can be effectively lowered, and the watermelon yield can be increased; the shape and quality of the watermelons are guaranteed, and the method has the advantages of being high in quality, yield and efficiency and the like.

The invention discloses a cultivation method of a greenhouse eggplant, and relates to the technical field of eggplant planting. The method comprises the following steps of (1) vegetable field selection; (2) greenhouse building and soil preparation; (3) variety selection; (4) seed soaking and germination accelerating; (5) seedbed seedling; (6) transplanting and field planting; (7) field management; and (8) harvesting. The incidence rate of diseases and pests is effectively reduced, the greenhouse eggplant is free of a pesticide residue; the epidemic disease such as root rot and foot rot are not easily generated; the eggplant is smooth in surface, bright and clean in color and luster, pleasant in taste and high in nutrient value.

The invention relates to the technical field of seedling culture, in particular to containerized seedling substrate, and aims to overcome the defect that the prior seedling substrate is poor in breathability, deficient in nutrition and poor in fertilizer and water retention. The seedling substrate comprises, by weight percent, 20-25% of humus, 8-17% of bran coat, 8-40% of peat, 2-4% of organize fertilizer, and 25-45% of discarded mushroom stick. The formula of the seedling substrate is reasonable, the seedling substrate is fully nutrient, the added bran coat quickly increases breathability of the substrate, oxygen required for breath of roots of the seedlings being cultured can be supplied, root rot rarely occurs to the seedlings being cultured, and the survival rate of the seedlings is increased greatly.

The invention provides organic biological insecticide fertilizer. The organic biological insecticide fertilizer is obtained by mixing organic fertilizer with biopesticide pulp, adjusting the mass of the biopesticide pulp to be 5-7% and water content to be 28-32%, and then conducting pelleting and packaging. According to the organic biological insecticide fertilizer, adopted raw materials are all biological organic raw materials, pollution to soil, air, water and plants is avoided, residence time is less than six hours, and the organic biological insecticide fertilizer is poisonless and harmless to people and livestock. After the organic biological insecticide fertilizer is applied, nutrients required by growth of plants is directly provided, potential nutrients in soil can be activated, nutrient conversion is promoted, the granular structure of soil is improved, the fertilizer and water retaining capacity of soil is improved, soil is improved fundamentally, soil nutrition and fertility are improved, damage caused by insects such as cabbage caterpillar and diseases such as downy mildew caused by fungi can be well prevented, insecticide effect can reach 90-95% while production and income are increased, and crops can be effectively prevented from being damaged by insect pests.

The invention discloses an active bio-organic fertilizer and a preparation method thereof. The fertilizer is prepared from raw materials in parts by weight as follows: 20-35 parts of livestock and poultry manure, 5-10 parts of rice husk, 20-40 parts of Chinese chestnut waste, 3-5 parts of biological humic acid, 0.1-1 part of a conditioner, 3-5 parts of mycorrhizal fungi organisms, 1-3 parts of peat ash, 1-3 parts of straw ash, 1-5 parts of distillers' grains, 3-8 parts of bacillus subtilis, 3-10 parts of bacillus amyloliquefaciens and 1-8 parts of auxiliary materials. The active bio-organic fertilizer has slight odors and almost no odors through deodorization, can change organic waste into wealth to realize recycling as an efficient and environment-friendly product and has broad application prospects.

The invention relates to a preparation method of a compound ecological fertilizer from plant stalks. The compound fertilizer is prepared by degrading a main raw material of plant stalks under the action of small molecule organic acid in the presence of a solid super acid catalyst, and combining with distiller's grains, bone meal, bran leather, humic acid, and NPK fertilizer. The raw materials consist of, by weight, 60-80 parts of plant stalks, 5-10 parts of distiller's grains, 5-15 parts of bone meal, 5-15 parts of wheat bran, 5-10 parts of humic acid and 30-50 parts of NPK fertilizer. The method uses a catalytic degradation technology for preparation of the compound ecological fertilizer, reaches high catalytic degradation efficiency of stalks, completes the conversion from stalks to compound ecological fertilizer within 16h at the highest speed, and has the advantages of simple operation, low cost, recyclable catalyst, and no corrosion of equipment, and can quickly obtain the product. The prepared compound ecological fertilizer can effectively enhance fertilizer efficiency, stimulate crop growth, control pests and diseases, improve the quality of agricultural products, and the absorb soil pollutants, improve the water retention capacity of soil and fertilizer and improve soil structure, and is conducive to the sustainable development of agriculture.

The invention discloses a cercis seedling substrate. The cercis seedling substrate comprises the following components in parts by weight: 5-10 parts of perlite, 5-8 parts of vermiculite, 20-30 parts of peat, 10-20 parts of talcum powder, 5-10 parts of rice hull powder, 15-25 parts of vinegar residues, 20-30 parts of wormcast, and 5-10 parts of a microbial fermentation agent. The invention discloses a preparation method of the cercis seedling substrate. The preparation method comprises the following steps: (1) crushing rice hull into powder; (2) weighing 5-10 parts of the rice hull powder, 15-25 parts of the vinegar residues, 20-30 parts of the wormcast and 5-10 parts of the microbial fermentation agent , and performing sealing with a plastic film or performing stack retting with earth; (3) uniformly mixing the substrate fermented in the step (2) with the perlite, the vermiculite, the peat and the talcum powder in parts by weight. The cercis seedling substrate disclosed by the invention has the advantages that the permeability is high; the weight is light; the fertilizers and water can be maintained for a long time; the survival rate of nursery stocks is high; the roots of the cultured nursery stocks are strong, and the growth of the nursery stocks can be effectively increased.

The invention relates to the technical field of seedling raising, and specifically relates to a seedling-raising substrate for nursery stock. The seedling-raising substrate provided by the invention aims to overcome the disadvantages of poor air permeability, deficient nutrients, and poor fertilizer and moisture retention abilities of seedling-raising substrates in the prior art. The substrate is prepared from the following components by weight: 30 to 40% of peat soil, 15 to 25% of perlite, 5 to 25% of vermiculite, 10 to 15% of sand, 10 to 15% of deep-seated puddle clay and 15 to 45% of waste mushroom-sticks. The substrate provided by the invention has rational formula and adequate nutrients; and the added sand can significantly improve permeability of the substrate and meet the need for oxygen needed by breath of a root system of a raised seedling, so that the roots of the raised seedling are insusceptible to rot, and the survival rate of the raised seedling is greatly improved.

The invention discloses a preparation method of a composite aspartic acid polymer. The preparation method comprises the following steps: mixing lactic acid and triethylene glycol, carrying out pre-polymerization, carrying out water removal treatment, adding terephthalic acid, carrying out melt polycondensation, carrying out cooling, and carrying out dissolution by using chloroform to obtain a prefabricated material; and stirring polysuccinimide and sodium hydroxide, regulating the pH value of the system to be 4.5-5, adding the prefabricated material, uniformly carrying out mixing, adding ethylene glycol diglycidyl ether to carry out a reaction, carrying out precipitating by using methanol, carrying out purifying, and carrying out vacuum drying to obtain the composite aspartic acid polymer. The invention further discloses a soil conditioner for crisp pear planting. The soil conditioner is prepared from the following raw materials in parts by weight: 60-80 parts of wormcast, 10-20 partsof urea, 15-30 parts of fishbone meal, 5-15 parts of plant ash, 10-15 parts of medical stone powder, 10-15 parts of bamboo charcoal powder, 5-15 parts of sodium silicate, 5-15 parts of ammonium molybdate, 4-5 parts of borax and 2-4 parts of the obtained composite aspartic acid polymer.

The invention belongs to the technical field of microorganism strain fermentation, in particular relates to a method for high-density fermentation of a bacillus subtilis strain, and further relates toapplication of the strain to feed additives and agricultural planting. The method for high-density fermentation of the bacillus subtilis strain comprises the following steps: (1) activating a strainof bacillus subtilis; (2) preparing a bacillus subtilis seed liquid; and (3) performing tank fermentation. The method has the beneficial effects that (1) the high-density liquid fermentation method ofthe bacillus subtilis has a final fermentation level of 40 billion / ml or greater; and (2) the method is short in fermentation time, that is, about 18-24 hours, the production cost can be reduced, theefficiency can be improved, the fermentation level is high, and the spore formation rate is high.

The invention discloses an organic fertilizer making blueberry high-yielding. The organic fertilizer is prepared from the following raw materials in parts by weight: 50-70 parts of animal manure, 30-40 parts of a peanut powder cake, 20-30 parts of pond sludge, 15-20 parts of wheat bran, 8-12 parts of cottonseed hulls, 6-8 parts of potassium sulfate, 5-7 parts of red mud, 5-6 parts of coal slag, 5-6 parts of ammonium molybdate, 4-5 parts of an EM biological strain, 4-5 parts of boric acid, 3-4 parts of citric acid, 3-4 parts of zircon sand, 2-3 parts of castor oil, 9-11 parts of a soil conditioner, and a proper amount of vegetable wished water. The fertilizer adopts the animal manure, the peanut powder cake and other organic matters as main raw materials and also added with the wheat bran, ammonium molybdate, potassium sulfate and other accessories, so that the content of nitrogen, phosphorus and potassium in the fertilizer formula is rich; through fermentation decomposition with the EM biological strain, blueberry is allowed to better absorb nutrients; and at the same time, the added coal slag, red mud, zircon sand and the like can improve a soil structure and increase the water and fertilizer retention abilities of soil.