1553results about How to "Reduce the amount of application" patented technology

This invention relates to a method for manufacturing bioorganic fertilizer. The bioorganic fertilizer is manufactured by: mixing sugar industry waste, breeding industry waste, oil-processing waste, phosphoric fertilizer, trace element fertilizer and silicon fertilizer, and performing aerobic fermentation and post fermentation. The effective components of the bioorganic fertilizer are: organic matters (greater than or equal to 30%), N, P and K (greater than or equal to 8%), beneficial microorganisms (greater than or equal to 200,000,000 / g), active silicone (greater than or equal to 5%), magnetic components (0.25%), and Fe, Zn and Mo (0.5-1%). The bioorganic fertilizer has abundant raw material sources, and is environmentally friendly.

The invention discloses a method for processing a drug-containing slow-release material and preventing and treating vegetable diseases and insect pests. The method is characterized by comprising the following steps: uniformly mixing active components of a pesticide, a reinforcing agent, a sizing agent, a fiber carrier and other additives, feeding the mixture onto a net for drying and molding, or directly preparing into the drug-containing slow-release material, including manufacturing a drug-containing slow-release paper membrane, a seedling pot or a non-woven cloth bag. The invention further provides a use method of the drug-containing slow-release material. The use method comprises the following steps: wrapping seedlings with original soil with the drug-containing slow-release material, or putting the seedlings into the drug-containing slow-release seedling pot or the non-woven cloth bag, filling the gaps with a drug-containing medium or cultivation soil, and watering and performing fix planting; or planting the seedlings by using the drug-containing slow-release seedling pot or the non-woven cloth bag, and subsequently fixing planting directly. The method is simple to operate, effective components of the pesticide can be continuously released after being applied once in planting fixation, crops can be protected for the whole growth season (or for a certain growth period), and practices show that the vegetables cultivated by using the method are low in morbidity of soil-borne diseases and insect pests, and the yield is remarkably increased. The method is high in target property, long in lasting period, low in cost and remarkable in control efficiency.

The invention relates to an agricultural fertilizer, in particular to a microbial compound fertilizer and application thereof. The microbial compound fertilizer specifically consists of a zymophyte agent and a compound fertilizer, wherein each gram of the compound fertilizer comprises not less than 0.2*108 bacterial cells; the compound fertilizer comprises the following components in percentage by weight: 5 to 15 percent of farmyard manure, 10 to 30 percent of humic acid, 5 to 8 percent of grass carbonic acid, 15 to 30 percent of nutrient and the balance of boric sludge; and the zymophyte agent is obtained by fermenting silicate bacteria, azotobacter chroococcum, actinomycetes, saccharomyces cerevisiae and rhodopseudomonas sphaeroides, wherein the silicate bacteria, the azotobacter chroococcum, the actinomycetes, the saccharomyces cerevisiae and the rhodopseudomonas sphaeroides are mixed together in a weight fraction of 1:1:1:1:1. The microbial compound fertilizer acting on a big field can increase the yield of crops by 20 to 30 percent, and simultaneously can obviously increase the percentage of fertile fruits, reduce fruit dropping and overgrow the fruits; besides, the maturation stage is shortened by 5 to 7 days, the yield-increasing effect is obvious, and simultaneously, the microbial compound fertilizer can obviously improve the appearance, the mouthfeel, the color and luster and the like of products, improve the quality by 1 to 2 grades, and prolong the product freshness date.

The invention discloses microbial ecological organic fertilizer and a preparation method thereof. The organic chemical fertilizer comprises the following components: edible mushroom dregs, sugarcane dregs, peat soil, oil squeezed waste, filter sludge, livestock and poultry manure and a microbial agent, wherein the microbial agent comprises bacillus subtilis, saccharomycetes, aspergillus niger, guanyloribonuclease, trichoderma, lactobacillus, photosynthetic bacteria, actinomycetes and streptomyces microflavus. The prepared organic fertilizer has advantages of wide raw material source, low cost, high absorption utilization rate, comprehensive nutrients, low dosage, no odor, fast fertilizer effect, various bacteria types, high content, capability of preventing injurious pests, simple preparation method and the like.

The invention relates to an agricultural compound biofertilizer, in particular to a compound biofertilizer capable of improving the physical and chemical properties of soil and improving the yield and quality of agricultural products and a preparation method thereof. The fertilizer contains the following materials in percentage by weight: 30-40% of organic substance, 15-25% of plant straw, 14-15% of mixed biological fermentation bacterium liquid and 30-31% of inorganic nutrient, wherein the biological bacteria used in the invention comprise Rhodopseudomonas palustris, microzyme, azotobacter, phosphorus-solubilizing Bacillus megaterium and silicate bacteria; the organic substance components are humic acid, worm excretion and bean cakes; and the inorganic nutrient comprises N, P and K nutrient. The compound biofertilizer can be applied as basal fertilizer or additional fertilizer, and is applicable to all crops. By using the compound biofertilizer, the yield increase amplitude can be 8-10%.

The invention discloses a method for cultivating hybrid rice, which comprises the steps of breeding improved varieties, raising sturdy rice seedlings, field cultivation and prevention and treatment for main diseases and pests. According to the method, the conservation of soil, fertilizer and water, the resistance for cold, drought, lodging and disease and pest and other functions of the soil are improved; and the applying quantity of chemical fertilizer is reduced on the premise of ensuring the national food security, therefore, the cost is saved and the farmer's income is increased, and energy is saved, environment is protected and the agricultural sustainable development is promoted for the country.

The invention discloses a whole-growth period plastic mulching cultivation technical mode with double-row concave ridges in a flue cured tobacco field. The tobacco field is plowed and divided to form the double-row concave ridges with a width of 220cm and a height of 15-35cm; a row distance which is 100cm is arranged between the two rows of the concave ridge peaks, and a concave ridge groove is arranged between two rows of the ridge peaks; the peak of the double-row concave ridge is 120cm away from the peak of another double-row concave ridge; the double-row concave ridges are covered by an agricultural plastic mulch with a width of 200cm; tobacco seedling holes are dug on the peaks of the concave ridges at a plant distance of 55-60cm in each row; the depth of the concave ridge groove is 8-12cm, and pervious holes with a diameter of 1cm are dug on the agricultural plastic mulch on the valley of the groove at a vertical distance of 60cm; a basic fertilizer is applied before mulching, and an additional fertilizer is applied 20 days after transplanting. The technical mode can help realize effective water collection, water conservation, fertilizer conservation, temperature adjustment, soil moisture preservation and weed suppression, reduce fertilizer input, save labor, effectively increase the yield and quality of tobacco leaves, and increase economic benefit of tobacco growers.

The invention discloses an organic recycling agriculture production system with high efficiency, which uses food obtained from planted crops for feeding livestock, manure produced by which is fermented so as to produce biogas, biogas residue and biogas slurry, wherein, the biogas can be used as clean energy, while the biogas residue and biogas slurry are applied to cultivated lands or grass lands; the planted forage and crop stalks can be used for raising cattle or earthworm after grinded together with cattle manure; the earthworm can be extracted to produce plant growth enhancer, protein feed and biologic products; the earthworm manure can be used as highly effective organic fertilizer to be applied to farm lands or grasslands. The organic recycling agriculture production system of the invention abides by the theory of agriculture circular economy, utilizes nature resource fully and reasonably, promotes resource regeneration, forms virtuous circle of multi-grade utilization of material and energy, and thus is a modern agriculture technique with high quality, high yielding, high efficiency, low consumption and environment protection as well.

The discarded Chinese medicinal material residue produced from production of Chinese patent drug Mailuoning is used and producing steps are: coarse pulverizing, adding dried Chinese medicine residue to regulate water content, then adding cellulolytic bacteria to make stacked fermentation, sieving, finally adding regulator A and B according to a certain ratio to obtain a matrix. Finally, in the said matrix a certain quantity of seedling fertilizer and feishite can be added. Said invention also provides its application method and its advantages.

The present invention provides a soil conditioner containing marine organisim, composed of 10-40 (weight)% shell powder, 10-60 (weight)% oyster shell powder, 1-5 (weight) % chitosan powder, 10-50 (weight) % stem vegetable and fruit powder or leavening having strong fibre, and or marine organisim powder or leavening. The waste marine organisim is a main raw material, the raw material is easy to get, having low cost, and the waste is effectively utilized, beneficial to environmental protection. The soil conditioner improves soil hardening, increasing soil permeability and activity, eliminating residual in the soil of the decomposition chemical fertilizer. The soil conditioner enhances the fertilizer utilization ratio, also exciting cropper root growth and enhancing cropper immunocompetence.

The invention relates to a soil fertilizer technique, in particular to a long-acting slow-release corn special blending fertilizer and a preparation method thereof to solve the problems that the nitrogen and phosphorus utilization rate of the fertilizer is low, the after manuring in the corn growth period consumes a large amount of time and labor and the like. The blending fertilizer comprises the following components in percentage by weight: 45 to 58 percent of nitrogen fertilizer, 16 to 25 percent of phosphate fertilizer, 16 to 25 percent of potassium fertilizer, and 4 to 14 percent of nitrogen phosphorus fertilizer synergist; and nutritive substances of the blending fertilizer comprise the following components in percentage by weight: 24 to 28 percent of pure nitrogen, 8 to 12 percent of diphosphorus pentanitride, and 10 to 15 percent of potassium oxide. The preparation method comprises the following steps: adding the granular nitrogen fertilizer, phosphate fertilizer, potassium fertilizer and the nitrogen phosphorus fertilizer synergist into a mixing and stirring machine according to the weight ratio, mixing and stirring the materials evenly to obtain the long-acting slow-release corn special blending fertilizer, and performing sub-package to obtain the finished product; or selecting a urease inhibitor, a nitrification inhibitor and a phosphate fertilizer synergist to granulate by mixing so as to obtain the granular nitrogen phosphorus fertilizer synergist, and then blending the granular nitrogen phosphorus fertilizer synergist with the granular nitrogen fertilizer, phosphate fertilizer and potassium fertilizer to obtain the finished product. The long-acting slow-release corn special blending fertilizer and the preparation method have simple process and easy implementation, are suitable for one-step basal application without after manuring for corn production in the Northeast, and reduce the usage amount by 10 to 20 percent without reducing the yield.

The invention relates to the fertilizer prepration technology field, in particular to a chelated root fertilizer and a preparation method thereof. The invention provides the chelated root fertilizer for solving the problem of fertilizer pollution of soil caused by the prior fertilizer, and the chelated root fertilizer is obtained by full stirring nitrogen fertilizer, phosphate fertilizer, potassium fertilizer, middle element fertilizer, trace element fertilizer, organic acid, organic amine, physiological active substances and water in a reaction tank for carrying out the reaction for a period of time. The chelated root fertilizer contains necessary nutrient elements needed by plant growth, the utilization rate of the nutrients can reach 30 percent to 65 percent by being matched with conventional fertilizers for use, therefore, the chelated root fertilizer belongs to the fertilizer with high utilization rate; the application amount can be less than the ordinary compound fertilizer by 20 percent under the premise of achieving the same yield, thereby having obvious economic benefits.

The invention provides a composite microbial flora and an enzyme product thereof, and a method of applying the composite microbial flora and the enzyme product thereof in soil restoration. The composite microbial flora is composed of a microbial flora and a bioactive enzyme, wherein the microbial flora is composed of bacillus subtilis, bacillus mucilaginosus, bacillus amyloliquefaciens, pediococcus pentosaceus, pichia farinose and pediococcus acidilactici, and the bioactive enzyme is composed of phytase, protein hydrolase, cellulose hydrolase and urease. Compared with the prior art, an effective microbial community and a microecological environment are constructed to realize biological catalysis and improve the content of organic matters and beneficial microbial flora in soil, and thus, the fertility of the soil is improved; biochemical degradation rate of soil pollutant can be substantially accelerated, digestion and biodegradation of the pollutant can be accelerated, and final inertial products like carbon dioxide, water and nitrogen are obtained; and toxic intermediate produced in the process of biochemical degradation can be rapidly removed, odor is eliminated, and emission of organic volatile matters (VOC) is reduced.

The invention belongs to the technical field of in-situ repair of soil polluted by heavy metals, in particular to a method for controlling and repairing soil polluted by a heavy metal of cadmium in situ. The method is characterized in that wheat straws with water content of 5 percent are crushed to straws less than or equal to 2 cm; the straws and 0-20cm of soil polluted by the heavy metals on the surface layer are mixed and treated for 90 days; and according to the standard that the content of cadmium in the polluted soil is 4.55mg / kg, the consumption of land blocks for planting Chinese cabbages is 15.4 ton / hectare and the consumption of land blocks for planting wheat is 23.2 ton / hectare. Farmland treated by the technology can be used for agriculture planting. The invention provides energy-saving, rapid and environment-friendly method for repairing farmland polluted by the heavy metal of cadmium in-situ.

The invention relates to the field of soil remediation, particularly to a composite conditioner for remediation of farmland heavy metal contaminated soil and a preparation method thereof. The composite conditioner comprises the following substances in parts by mass: 40 to 55 parts of modified biological carbon, 15 to 25 parts of poultry manure, 15 to 25 parts of modified clay, 5 to 8 parts of phosphate and 5 to 12 parts of quick lime. Through combined utilization of organic modified substances, inorganic modified substances and other effective components, the composite conditioner achieves the good effect of multi-action synergetic remediation, and has the characteristics that the cost is low, the effect is good, the stability is high, the soil cultivability can be improved, and increase of crop yield and income is facilitated.

The invention provides a soilless culture nutrient solution for lily as well as a preparation method and application thereof. The nutrient solution consists of macroelements, trace elements and water, wherein the macroelements in every liter of the nutrient solution comprise 6.15-6.25mmol of nitrogen, 0.25-0.35mmol of phosphorus, 1.80-1.90mmol of potassium, 1.20-1.40mmol of calcium and 0.40-0.60mmol of magnesium; and the trace elements in every liter of the nutrient solution comprise 15.00-16.00 mu mol of iron, 45.00-50.00mu mol of boron, 9.00-10.00 mu mol of manganese, 0.75-0.85 mu mol of zinc, 0.25-0.35 mu mol of copper and 0.10-0.30 mu mol of molybdenum. The soilless culture nutrient solution is especially suitable for culturing lily by utilizing a special soilless culture substrate, can meet the nutrition requirement of lily and reduce the applying amount of the nutriment elements, thereby fundamentally solving the phenomenon of great waste in production because of the nutrition excess caused by the fact that culture nutrient solution is not specially for lily for a long term and is just prepared experientially or on the basis of the preparation of nutriment solutions for other crops.

The invention relates to a composite planting and cultivating method for rice, procambarus clarkii and soft-shelled turtle, comprising the following seven steps: neatening the preliminary rice field; catching the procambarus clarkii of the last year; catching the soft-shelled turtle of the last year; putting and cultivating the soft-shelled turtle of the year; seeding paddy rice; cultivating the procambarus clarkia of the year; and harvesting the paddy rice. In the invention, a planting and cultivating region is constructed by excavating ditches in a paddy rice field; after harvesting the paddy rice, the zooplankton in the water cultivated through straw return is used as the bait of crayfish; the growth and reproduction of the crayfish are guaranteed by combining the ditches with the paddy rice field; the crayfish is capable of eating a part of the insect pest of the rice so as to guarantee the growth of the paddy rice; the physique of the turtle is guaranteed through eating fresh crayfish; the excretion of the crayfish and the turtle is decomposed through micro-organism preparation, is changed into nutrient substance and is absorbed by the paddy rice; and since the crayfish is high sensitive to chemical pesticide, the use of the chemical pesticide under the production mode in the invention can be eliminated, and the safe agricultural product is produced.

The invention discloses a composite for preventing and controlling an agricultural bacterial disease, and belongs to the technical field of plant protection pesticides. The composite comprises an active component A and an active component B, wherein the active component A is benziothiazolinone; the active component B is one or two of cymoxanil, qingkuling, yekuzuo, bismerthiazol, ethylicin, thiram, dioctyl divinyltriamino glycine, active ester, metalaxyl, chlorothalonil, dithiocyano-methane, bromine chlorine hydantoin, 2-bromine-2-nitryl-1,3-propylene glycol and moroxydine hydrochloride; the weight ratio of the active component A to the active component B is 1:100 to 100:1. The composite disclosed by the invention obtains the synergetic effect through the mixing of the benziothiazolinone and other bacterial medications and is used for agricultural production.

The invention provides a mold release agent, which contains the following components: a silicon-hydrogen bond-containing polysiloxane compound, a cross-linking agent, a catalyst and a solvent, wherein the cross-linking agent is a silicon compound containing Si-OH groups and / or a silicon compound which can form the Si-OH groups through hydrolyzation. The mold release agent is a semi-permanent mold release agent, and has the advantages of rapid low-temperature solidification, less mold release agent transfer, less wax deposition, convenient construction, low cost and the like; the produced product has uniform openings; and the mold release agent particularly achieves major breakthrough in the field of producing polyurethane foam products. The invention also provides a method for preparing the mold release agent, and application of the mold release agent in producing polyurethane foam products, epoxy resin products, glass fiber reinforced epoxy resin products, rubber products, unsaturated polyester products and other polyurethane products.

The invention provides a production process of organic fertilizer; firstly the train liquid is prepared by aerobic actinomycosis; the train liquid is sprayed into the uniform crushed material of straw, Chinese medicine residue, grass coal, wood coal and livestock dung according to the proportion, and then the material is stacked, the temperature rises to 60 DEG C to 80 DEG C automatically, and the temperature is kept for 7 to 14 days and then is dropped to 40 DEGC automatically, after that, the moisture is dried to less than 20 percent; afterwards the material is added with the lemery salt of 10 percent to 15 percent, phosphoric acid amine of 8 percent to 10 percent and amino acid of 1 percent to 2.5 percent, and when is mixed equably, thereby the organic fertilizer is generated. The production of the organic fertilizer has the advantages of simple production process, short production cycle, less strain consumption and low cost. The organic matter content of the fertilizer is greater than 30 percent; the amino acid content is above 2.5 percent; the content of nitrogen, phosphorus and potassium is 8 percent to 12 percent; and the fertilizer efficiency is high; while increasing the crop yield, the crop quality is improved, furthermore, the invention is conductive to environmental protection. Thereby the invention is suitable for the crops of foodstuff, tobacco leaf, vegetable and fruit.

A natural multi-function mineral complex fertilizer is characterized in that the fertilizer is made from the raw materials with the following weight percentages: 28-33% of urea, 15-25% of monoammonium, 12-17% of potassium fertilizer, 30-45% of attapulgite powder and 5-10% of humic acid by the preparation method of the conventional fertilizer. The attapulgite powder is a nano-grade porous nonmetallic mineral substance with physical properties of strong adsorbability, cation exchange property, large specific surface area, and the like, wherein, the water absorption rate is equal to or more than 60%, the cation exchange capacity is equal to or more than 20mmol / 100g, and the specific surface area is equal to or more than 120m<2> / g; meanwhile, the attapulgite powder is rich in various nutrient elements of potassium, phosphor, calcium, magnesium, sulfur, iron, copper, zinc, molybdenum, manganese, boron, iodine, selenium, and the like; the humic acid can inhibit the activities of urase, and slow down the decomposition of the urea, and the complex compound produced can gradually decompose and release nitrogen, thus prolonging the fertilizer efficiency. The natural multi-function mineral complex fertilizer has the advantages of being applicable to all crops, and realizes the aims of reducing the fertilizer consumption, enhancing the utilization ratio of the chemical fertilizer, reducing agricultural production cost, increasing the yield and quality of farm products, and improving the soil.

The invention discloses a selenium-enriched microorganism preparation prepared from fermentation of a mixed bacterium liquid. The selenium-enriched microorganism preparation consists of the following raw materials: sodium selenite, complex trace elements, monopotassium phosphate, urine, peptone powder, NaCl, NaOH, NaNO3, NaCl, NH4Cl, K2HPO4, a beef extract, glucose, starch, calcium carbonate, amino acid, potassium nitride, ferrous sulfate, magnesium sulfate, trisodium citrate, a biochemical enzyme and a mixed bacterium liquid; and the mixed bacterium liquid is a mixed liquid of the bacterium liquid of bacillus amyloliquefaciens, the bacterium liquid of bacillus subtilis, the bacterium liquid of bacillus licheniformis, the bacterium liquid of bacillus thuringiensis and the bacterium liquid of bacillus mucilaginosus. The mixed bacterium liquid applicable to the selenium-enriched microorganism preparation disclosed by the invention is conducive to microorganisms in soil, and can be used for increasing the quantity of the microorganisms in the soil and enhancing the activity of the microorganisms in the soil. Due to vital activity and metabolite, the strain is an agricultural product which can cause special fertilizer effect, growth regulating effect, effect of prevention and control of plant diseases and pests, soil bioremediation and the like to crops.

The invention discloses a novel green biological organic fertilizer and belongs to the technical field of agricultural biological fertilizers. The novel green biological organic fertilizer is prepared from the following raw materials: straw mixture, seaweed residue, humic acid, amino acid and multifunctional zymophyte. The novel green biological organic fertilizer provided by the invention has the advantages that nutrients required by crops can be provided, incidence of plant diseases and insect pests can be greatly reduced, usage amount of pesticide is reduced, and crop yield and quality are improved.

A bacterium-chemial mixture for preventing and treating the diseases of vegetables is prepared through providing the biopreventing bacterium, fermenting culture, centrifugally depositing of fermented liquid, proportionally mixing it with powdered calcium carbonate and mixing it with bactericide.

The liquid fertilizer is compounded with potassium dihydrogen phosphate, potassium nitrate, boric acid, urea, calcium nitrate, magnesium sulfate, zinc sulfate, copper sulfate, manganese sulfate, nickel sulfate, ammonium molybdate, iron trichloride or ferrous sulfate, sodium silicate or sodium metasilicate, cane sugar or glucose, nitric acid, phosphoric acid, alcohol, rosin and sulfuric acid. Applying the liquid fertilizer can avoid pollution to soil, environment and river, and its application is saving in labor. The liquid fertilizer is non-toxic, harmless and pollution-free.

The invention relates to a tobacco field soil improving method. The method comprises the following steps: green manure is applied to soil, the green manure is ploughed down 30-45d before next year tobacco seedling transplantation, and biomass charcoal is applied to soil 15-20d after the green manure is ploughed down. The green manure and the biomass charcoal are combined to restore tobacco field soil, so the content of organic matters in soil is improved, the water retention property of the soil is improved, the growth of roots in the earlier growing stage of tobacco plants is promoted, and early and fast growth of the tobacco plants is promoted; and the method also has the advantages of increase of the content of tobacco leaves, increase of the proportion of high-and-middle tobacco leaves, increase of the output value of the tobacco leaves, improvement of the quality of the tobacco leaves, coordination of chemical components, increase of the fragrance and the oil content of the tobacco leaves, improvement of the smoking quality of the tobacco leaves, reduction of the application amount of chemical fertilizers, and improvement of the utilization rate of the fertilizers.

The invention discloses a method for improving cold and disease resistance of tobacco, which includes: raising tobacco seedlings by floating process, inoculating mycorrhizal fungi 2-3cm below sowing positions of tobacco seeds in each foamed floating porous seedling tray filled with substrate, guaranteeing each single tobacco plant to contain 90-150 spores of the mycorrhizal fungi, sowing the tobacco seeds, cultivating, and waiting for tobacco seedlings to grow up; and inoculating phosphate-solubilizing microorganisms liquid inoculant for two to five times in two weeks before transplanting of the tobacco seedlings, guaranteeing inoculation amount to be 103-105 phosphate-solubilizing microorganisms per tobacco seedling each time, transplanting the tobacco seedlings, covering with earth, andmanaging the tobacco seedlings conventionally. By using the method to treat tobacco, the cold and disease resistance of the tobacco is improved, and nutrition and growth of the tobacco can also be improved.

The invention relates to an ecological planting method of panax notoginseng and belongs to the technical field of planting of traditional Chinese medicinal materials. The method comprises specific steps as follows: land selection and preparation; ditching and plot arrangement; planting of panax notoginseng; piling and shed building; net and film covering; field management (including film uncovering for germination, weed removal, irrigation and drainage, shade frame adjustment, removal of flower buds, fertilization, disease and pest prevention and control as well as stalk cutting for passing of the winter); digging of the panax notoginseng. The method is based on the bionic cultivation principle of the traditional Chinese medicinal materials, physiological and biological characteristics of the panax notoginseng are combined, the ecological environment suitable for growth and development of the panax notoginseng is created, the resistance of the panax notoginseng is enhanced through agricultural comprehensive prevention and control measures, field diseases and pests are reduced, high-quality and green panax notoginseng is produced, and the method is simple and easy to implement, conforms to the development direction of ecological planting of medicinal plants at home and abroad and is a technological revolution in cultivation of the panax notoginseng.

The invention discloses a biological phosphatic fertilizer. The preparation method of the phosphatic fertilizer comprises the following steps: culturing AM mycorrhiza, phosphate solubilizing bacteria and rhizobium respectively, mixing with a phosphatic fertilizer to react, then adding various nutritional elements required for plants, and mixing and granulating to obtain porous fertilizer particles, so that the contact area between the fertilizer and water is increased, and the dissolving velocity of the fertilizer in water is accelerated. The biological phosphatic fertilizer can activate the phosphatic fertilizer, and can improve the absorption of the phosphatic fertilizer by plants, increase the utilization ratio of the phosphatic fertilizer, reduce the using quantity of the fertilizer and reduce the pollution to the environment; the fertilizer can be rapidly dissolved in water for irrigation and fertilization together with water, and is suitable for modern agricultural water and fertilization integration.

The present invention provides fully biodegradable and multi-functional plastic mulch. The plastic mulch comprises, by weight percent: natural biopolymers of starch or derivatives thereof, biodegradable synthetic polymers, an interfacial reinforcer, a compound plasticizer with urea as a main ingredient, a nitrogen phosphorus and potassium compound fertilizer, pesticides, herbicides and trace fertilizers. The plastic mulch of the present invention not only has heat and moisture preservation functions, and is fully biodegradable after use, eliminating the contamination to soil causes by residual plastic mulch debris; and functional additives of fertilizers and nutrients, pesticides, herbicides etc. in the plastic mulch are sustainedly released as the plastic munch degrading, so the plastic mulch has long lasting effects of weed controlling, pest killing, and sustainedly released fertilizing, significantly reducing the use amount of fertilizers and pesticides, decreasing costs, and protecting the ecological environment. The invention also provides a method for preparing the multi-functional plastic mulch.