46results about How to "Give full play to the fertilizer effect" patented technology

The invention relates to a fertilization method. The fertilization method comprises the steps of adopting urea as a nitrogen fertilizer, calcium superphosphate as a phosphorus fertilizer and potassium sulfate as a potassium fertilizer, wherein the ratio of the using quantity in parts by weight of nitrogen to phosphorus to potassium is 1.986: 1: 2.114 calculated by N, P2O5 and K2O; firstly applying the total phosphorus fertilizer and 45% of the nitrogen fertilizer and the potassium fertilizer into cultivation soil as a base fertilizer, applying 25% of the nitrogen fertilizer and the potassium fertilizer as a first additional fertilizer during the tillering stage, and averagely distributing and applying the remaining 30% of the nitrogen fertilizer and the potassium fertilizer after every harvest. According to the fertilization method disclosed by the invention, by selecting the appropriate nitrogen, phosphorus and potassium fertilizers and reasonably matching the using quantities of the nitrogen, phosphorous and potassium fertilizers, the nutritional requirements of cocksfoot are well met; simultaneously, a fertilization way is used for matching, so that the nutrition absorption during the earlier stage and later stage of growth of the cocksfoot is fully improved; the quality and yield of the cocksfoot are effectively improved, the energy consumption is reduced, the environmental pollution is avoided, the soil fertility is improved, and the economic benefits of production of the cocksfoot are greatly improved.

The invention relates to an organic fertilizer and its productive technique, which belong organic fertilizer and its productive technical field. Its characteristics is: the content of N+P2O5=K2Oí¦6%,that of organic substanceí¦30%; nitrogen; urea power whose nitrogen contentí¦46%, phosphor phosphor whose P2O5 contentí¦14%, kalium: potassium sulfate whose K2O contentí¦50%; according to the mess ratio, urea :4-6%, phosphor:14-16%, potassium sulfate :3-5%, humic acid (whose organic contentí¦55%) :49-51%, expanding chicken manure (whose organic contentí¦30%):14-16%, high calcium clay :10-12%. Its productive technique is: mix and sir -make particle- dry- cool-package. The invention has the advantages: (1) any nutrition the plants need; (2) scientific dispensation ; (3) can reduce alkalinity and salinity of soil; (4) can be used as basic fertilizer ; (5) wide range of application; (6) has high productivity and increased quality; (6) no harm to the public.

The invention discloses slowly-released magnetized compound fertilizer and a preparation method thereof. The method includes: crushing and well mixing all raw materials proportionally, adding fertilizer nutrition slow-release agent, using the tower type granulating process for granulating, screening the fertilizer after granulating to remove doped powder or unqualified blocks, returning the removed powder or unqualified blocks to granulating equipment to be reused to obtain screened granular fertilizer, subjecting the granular fertilizer after screening to magnetic field treatment through an adjustable permanent magnetic processing machine, drying the granular fertilizer subjected to the magnetic field treatment in a drying machine to be dewatered to meet the national standards, cooling the dried materials in a cooling machine, measuring and packaging the finished cooled materials according to specifications to obtain the slowly-released magnetized compound fertilizer. By the aid of the slowly-released magnetized compound fertilizer, yield can be increased, fertilizer utilization rate is increased, nutrient loss of the fertilizer is effectively prevented, physical and chemical characteristics of soil are improved, and biological activity of crops is improved while soil nutrient conversion is promoted.

The invention relates to an orchard water and fertilizer integration top-dressing amount accurate estimation method, which comprises a fruit tree yield prediction module and a top-dressing amount calculation module, and is characterized in that the fruit tree yield prediction module estimates the quantity of flower buds of fruit trees by using area clustering through image acquisition, image processing and data analysis, and predicts the yield of the fruit trees by combining flower thinning experience, commodity fruit division and the single fruit weight standard in previous years; and the top-dressing amount calculation module acquires a fertilizer requirement of the fruit trees according to an empirical relation between the fruit tree yield and the fertilizing amount, and calculates the actual top-dressing amount of the fruit trees by combining the soil fertilizer containing amount, the fertilizer utilization rate and the fertilizer nutrient content according to a formula that the actual top-dressing amount is calculated by dividing the difference between the fertilizer requirement and the soil fertilizer containing amount by the fertilizer utilization rate and then multiplies the fertilizer nutrient content. According to the method, timely and appropriate top-dressing is achieved through fruit tree yield prediction, application of experience of the previous years, soil fertilizer content detection and calculation for the actual top-dressing amount of the fruit trees, thereby giving full play to the fertilizer efficiency, and meeting requirements of safety, high yield and high quality of apples.

The invention discloses a slow release water-retaining compound fertilizer and a preparation method thereof. The slow release water-retaining compound fertilizer comprises the following components in parts by weight: urea, wheat straw, peony seed meal, attapulgite powder, diatomite, polylactic acid, EM bactericide, earthworm cast, peat, pond sludge, sodium humate, chitosan, ferrous chloride, potassium dihydrogen phosphate, N,N-methylene bisacrylamide, sodium alginate and right amount of water. The slow release water-retaining compound fertilizer is added with the conventional bacterial fertilizer and inorganic chemical fertilizer synergistic microbial active ingredients, a multi-layer coating slow release structure is adopted, and liquid mulching film functional ingredients are coated on the outer layer, so that slow nutrient release performance and water retaining effects are realized, and multiple resources such as carbon and nitrogen can be provided for soil after degradation; and meanwhile, the effects of stimulating plant growth and development, enhancing the stress resistance of crops and improving the nutritional state of the plants are realized, bioactive ingredients at the inner layer are synergistic, the soil structure is further improved, the fertilizer effect is fully played, the plant growth is promoted, and the crop yield is increased.

The invention relates to granular boron fertilizer. A novel efficient granular boron fertilizer is prepared by mixing the following raw materials in parts by weight: 30 to 60 parts of natroborocalcite mineral powder, 0 to 40 parts of borax, 0 to 20 parts of boric acid, and 5 to 10 parts of methylene ureas which are treated as powdered mixed materials, and then polymerizing and granulating in the presence of acid medium under a temperature of 60 to 90 DEG C, wherein the acid medium is prepared from one or a plurality of concentrated sulfuric acid, phosphoric acid and citric acid. According to the novel efficient granular boron fertilizer and the preparation method, natroborocalcite mineral powder, borax, boric acid and methylene ureas are polymerized and granulated based on corresponding ratio in the presence of the acid medium and under a certain temperature, thus the prepared granules are uniform and smooth, and high in intensity and high in mobility flowability; quick-acting, intermediate-acting and long-acting nutrients in the granules are balanced to release, thus the demand of crops on boron nutrient in the whole growth period is fully met; the fertilizer efficiency is high, and the economic benefit is obvious.

The invention discloses a process for directly producing long-acting large-particle urea ammonium sulfate by using the by-product of ammonium sulfate from the flue gas desulfurization. Solid urea is measured and added to a urea quick melting device, and then liquid urea is added to a urea and ammonium sulfate mixer; one part of ammonium sulfate crystal from the flue gas desulfurization and drying is added to the urea and ammonium sulfate mixer to be pulped, and the other part is delivered to a rotary drum coating granulator so as to be used as seed crystal; the mixed pulp from the urea and ammonium sulfate mixer is sprayed on small ammonium sulfate particles through an air atomizing spray nozzle; the small ammonium sulfate particles are cooled by a rotary drum cooler; the cooled small ammonium sulfate particles are added into a vibrating screen so as to be screened; and the qualified small ammonium sulfate particles are added into a packaging belt. The large-particle urea granulating technology is adopted by the process, thus the external material return is reduced in the production process, and the consumption is lowered. The urea and the ammonium sulfate are combined, thus the defect of signal product is overcome. The proportion of nitrogen to sulfur can be adjusted according to the crop or market demand. The urea ammonium sulfate can prevent the soil hardening and increase the crop yield and can take effect quickly for a long term.

The invention relates to a granular medium-trace nutrient element fertilizer and a production method thereof. The granular medium-trace nutrient element fertilizer is prepared from the main materialsas follows: yellow phosphorus tailings, magnesium-containing substances, microelement raw materials and the like. The granular medium-trace nutrient element fertilizer is capable of supplying medium-trace nutrient elements required by crops, the proportion of each element can be adjusted, the particle strength is high, and the fertilizer suitable for mechanically applied and can be rapidly disintegrated after being applied to the soil, so that the fertilizer can be taken as the medium-trace nutrient element fertilizer to be directly applied and can be taken as a raw material of a blended fertilizer so as to supply the medium-trace nutrient elements to the blended fertilizer; the granular medium-trace nutrient element fertilizer is alkaline and has the functions of an acidy soil conditioner; and meanwhile, the production method is one of effective paths for resource utilization of a byproduct, namely yellow phosphorus tailings of a yellow phosphorus enterprise.

The invention discloses a liquid chemical fertilizer additive. The liquid chemical fertilizer additive is prepared from the following formula components in parts by mass: 60 to 80 parts of sawdust, 10 to 20 parts of fungus bran, 3 to 5 parts of tea saponin, 10 to 20 parts of ethanediol, 10 to 12 parts of polyaspartic acid, 5 to 7 parts of o-methoxy-phenol, 30 to 40 parts of shaddock peel, 10 to 12 parts of an ammonium bicarbonate chemical fertilizer and 25 to 35 parts of glucose. The promotion of the liquid chemical fertilizer synergistic additive disclosed by the invention is of profound social significance.

The invention relates to the fertilizer processing field, and provides a novel slow-release particle magnesium fertilizer. A preparation method comprises the following steps: taking magnesium sulfate monohydrate and magnesium oxide as powder, mixing according to corresponding proportion, under acidic medium condition, adding water-soluble chitosan in an acidic medium for dissolving, performing polymerization for granulation, wherein the magnesium fertilizer comprises the following raw materials by mass part: 60-85 parts of magnesium sulfate monohydrate and 15-40 parts of magnesium oxide; taking citric acid and / or diluted nitric acid as an acidic medium, and preparing an water-soluble chitosan solution with mass concentration being 0.1-5%. The produced product has the advantages of uniform particles, mellow shape and high intensity. The fertilizer can be chelated by water-soluble chitosan polyfunctional group, its salt has film moulding property, magnesium fertilizer particles can be uniformly released with quick action, intermediate action and long action, requirements of magnesium of crop during a whole fertility period can be fully satisfied, fertilizer efficiency is high, and economic benefit is obvious.

The invention relates to granular boron fertilizer. A novel efficient granular boron fertilizer is prepared by mixing the following raw materials in parts by weight: 30 to 60 parts of natroborocalcite mineral powder, 0 to 40 parts of borax, 0 to 20 parts of boric acid, and 5 to 10 parts of methylene ureas which are treated as powdered mixed materials, and then polymerizing and granulating in the presence of acid medium under a temperature of 60 to 90 DEG C, wherein the acid medium is prepared from one or a plurality of concentrated sulfuric acid, phosphoric acid and citric acid. According to the novel efficient granular boron fertilizer and the preparation method, natroborocalcite mineral powder, borax, boric acid and methylene ureas are polymerized and granulated based on corresponding ratio in the presence of the acid medium and under a certain temperature, thus the prepared granules are uniform and smooth, and high in intensity and high in mobility flowability; quick-acting, intermediate-acting and long-acting nutrients in the granules are balanced to release, thus the demand of crops on boron nutrient in the whole growth period is fully met; the fertilizer efficiency is high, and the economic benefit is obvious.

The invention discloses an improved acidified soil water-retention compound fertilizer and a preparation method thereof. The improved acidified soil water-retention compound fertilizer is prepared from, by weight, 20-23 parts of urea, 3-4 parts of an EM fungicide, 20-22 parts of biogas residues, 6-8 parts of silkworm excrement, 8-10 parts of lignite, 18-22 parts of sodium humate, 12-15 parts of potassium dihydrogen phosphate, 12-13 parts of chitosan, 8-10 parts of smoke slag, 20-30 parts of tea tree waste, 1-2 parts of antibiotics, 6-8 parts of bentonite, 4-6 parts of boron mud, 6-8 parts of blast furnace slag, 6-9 parts of polylactic acid, 8-12 parts of rosin pentaerythritol ester, 0.5-1 part of N,N-methylene bisacrylamide and a proper amount of water. The boron mud, the bentonite and other ingredients are added to the improved acidified soil water-retention compound fertilizer, alkaline ingredients are increased, meanwhile the power of hydrogen is isolated and buffered, the acid-base equilibrium of soil is regulated, accordingly acidified soil can be effectively improved, and soil fertility is improved.

The invention discloses potassium special for trickle irrigation. The potassium is characterized by comprising the following raw materials in parts by weight: 40-80 parts of a potassium source, 6-30 parts of a magnesium source and 8-30 parts of a sulfur source. A fertilizer is applied to root systems and middle layers timely and frequently in an appropriate quantity in a regular and fixed way, so that convenience is brought to crop absorption, loss is reduced, the fertilizer effect is brought into full play, and soil can be improved. The fertilizer has high solubility and high dissolving speed, is free from impurities, and is suitable for various types of trickle irrigation equipment. The potassium has a good fertilizing effect and remarkable yield-increasing and income-increasing effects, the fertilizer utilization ratio of trickle irrigation under films can be increased by 20-30 percent than conventional fertilizing, and income is increased remarkably.

The invention discloses a drip irrigation potassium fertilizer. The drip irrigation potassium fertilizer is characterized by comprising a mixture of a potassium source, a magnesium source and a sulfur source, and the mixture contains the following ingredients in parts by weight: 50-60 parts of potassium source, 4-34 parts of magnesium source and 6-36 parts of sulfur source. According to the invention, the drip irrigation potassium fertilizer is directly applied to root systems and middle layers in a timely and appropriate manner and applied in a small-amount and frequent manner, so that the fertilizer application is timed and positioned, the crop absorption is facilitated, the loss is reduced, the fertilizer effect is fully played, and the soil can be improved; the fertilizer has good solubility, high dissolution rate and no impurity and is suitable for various drip irrigation devices; and the fertilizer efficiency is high, the yield / income increasing effect is obvious, and the fertilizer utilization ratio of drip irrigation under a film can be increased by 20%-30% compared with that of the conventional fertilizer application, so that the income increase is remarkable.

The invention discloses a leakage-proof water-retaining compound fertilizer and a preparation method thereof. The leakage-proof water-retaining compound fertilizer comprises, by weight parts, 19-21 parts of urea, 30-40 parts of papermaking waste liquor, 2-3 parts of polyaspartic acid, 1-2 parts of cetyl alcohol, 12-14 parts of sodium humic acid, 13-15 parts of monopotassium phosphate, 2-4 parts of EM fungicide, 11-12 parts of chitosan, 3-5 parts of castor oil, 12-15 parts of sawdust, 8-10 parts of protein mud, 6-8 parts of zinc chloride, 1-2 parts of silica sulfate, 8-10 parts of zeolite powder, 1-2 parts of carboxymethyl cellulose, 6-9 parts of polylactic acid, 8-12 parts of sodium alginate, 0.5-1 part of N,N-methylene-bisacrylamide and an appropriate amount of water. According to the leakage-proof water-retaining compound fertilizer, functional components such as the castor oil and cetyl alcohol are added, so that a particle flocculation effect is enhanced, and water and fertilizer leakage is reduced; the zeolite powder is utilized, an agglomerate particle structure is added, soil hardening is avoided, so that fertilizer draining and soil hardening are avoided, and the water and fertilizer utilization rate is improved.

The invention discloses an efficient fertilizer additive. The additive is prepared from formula components in parts by mass as follows: 15-25 parts of distillers' grains, 6-10 parts of metalloprotease, 6-8 parts of disodium inosinate, 10-12 parts of disodium inosinate, 5-15 parts of naphthalene acetic acid, 5-7 parts of triiodobenzoic acid, 20-30 parts of sargassum, 5-7 parts of nitroguaiacol and 6-10 parts of bacillus subtilis. With the adoption of the additive, environmental pollution can be reduced, and the yield and quality of crops, flowers, fungi and vegetables can be improved.

The invention provides a calcium supplementation method of fruit trees based on integration of water and fertilizer and relates to the technical field of calcium supplementation for fruit trees. In the spring of March to April, 4-6 cylindrical soil pits with diameter of 30-50cm are dug under the crown projection around fruit trees; straw is bundled into a cylindrical bundle which rightly fills up a soil pit and put into the soil pit; 10-20g fulvic acid, 20-30g water soluble chitosan and 250-300g calcium ammonium nitrate are well mixed; the mixture is evenly spread in the intermediate gaps of the straw bundles and finally the soil pits are covered with mulch films on the above; multiple small holes with diameter of 0.3-0.5 cm and with intervals of 5-10 cm are pinpricked on the mulch film so that water supplement is fulfilled along the mulch film small holes by means of the tube outflow method, and the water supplement volume is 15-20L / soil pits. By means of the method, water is saved, calcium supplementation for fruit trees is fulfilled, fruit physiological disease is reduced and soil organic matter is increased.

The invention discloses a green chemical fertilizer additive. The green chemical fertilizer additive consists of the following formula components in percentage by weight: 40 to 60 parts of shell, 6 to 10 parts of indoleacetic acid, 4 to 8 parts of acetic bacteria, 10 to 20 parts of straws, 6 to 8 parts of mannitol, 40 to 50 parts of buckwheat middling, 45 to 55 parts of gulfweed, 15 to 25 parts of mushroom fungus residue and 6 to 8 parts of saccharomycetes. The chemical fertilizer additive can obviously improve the yield of crops; meanwhile, the production raw materials are low in cost and are convenient to take; the chemical fertilizer additive is new tendency of chemical fertilizer development.

The invention discloses a method for producing rice. The method for producing the rice comprises the following steps: transplanting rice seedlings, and applying fermented sheep manure and a special rice fertilizer A before transplanting the rice seedlings. The weight ratio of the fermented sheep manure to the special rice fertilizer A is 5: 1. The special rice fertilizer A comprises the followingcomponents in parts by weight: 15-20 parts of cottonseed cakes, 15-20 parts of rapeseed meal, 5-10 parts of rice hull powder, 5-10 parts of corn starch, 5-15 parts of humic acid, 5-20 parts of a phosphate fertilizer, 5-15 parts of a nitrogen fertilizer, 2-10 parts of a potassium fertilizer, 0.5-1 part of borax, 0.5-1 part of diatomite, 0.5-1 part of coal cinder and 0.05-0.5 part of biological bacteria. The contents of selenium, zinc and calcium in the rice are increased, and the quality and yield of the rice are improved.

The present invention discloses a chromium and selenium composition and a health food, a fertilizer and a preparation method thereof. The invention first provides chelating liquid fertilizer comprising trivalent chromium salt, seleninic acid and / or selenite and / or selenium dioxide, amino acid, reducing sugar and / or aliphatic acid, and a compound containing nitrogen, phosphorus and potassium. The fertilizer can be used for cultivating plant, and the plant can be prepared into the chromium and selenium composition and the health food thereof. Human or animal ingesting the selenium and chromium composition and health food thereof can produce super iron phosphate in the body to enhance the role of insulin and prevent diabetes and other diseases.

The invention provides a fertilizing method of forage grass. According to the fertilizing method, urea is taken as a nitrogen fertilizer, calcium superphosphate is taken as a phosphorous fertilizer and potassium sulfate is taken as a potassium fertilizer, wherein the use amounts of nitrogen, phosphorous and potassium are metered in parts by weight according to a ratio of N to P2O5 to K2O being 1.986 to 1 to 2.114. The fertilizing method comprises the following steps of firstly, applying all the phosphorous fertilizer and 45% of the nitrogen fertilizer and the potassium fertilizer taken as base fertilizers into culture soil; applying 25% of the nitrogen fertilizer and the potassium fertilizer taken as first time topdressing at a tillering stage; and averagely distributing and applying the residual 30% of the nitrogen fertilizer and the potassium fertilizer after each time of harvesting. According to the fertilizing method provided by the invention, the suitable nitrogen fertilizer, phosphorous fertilizer and potassium fertilizer are selected to be reasonably matched with the use amounts of the nitrogen fertilizer, the phosphorous fertilizer and the potassium fertilizer so as to meet nutrition requirements of orchard grass very well; meanwhile, a fertilizing manner is matched to sufficiently improve the nutrition absorption of prior periods and post periods of the orchard grass; the quality and the yield of the orchard grass are improved effectively; the energy source consumption is reduced, the environmental pollution is avoided and the soil fertility is improved, so that the economic benefits of production of the orchard grass are improved greatly.

The invention discloses a greenhouse horned melon fertilizing method. The fertilizing method comprises the following steps: (1) soil treatment before planting; (2) preparation of a controlled release fertilizer; (3) leaf fertilizer applying during a flowering period; (4) fertilizer applying in a young fruit formative period; (5) fertilizer applying in a fruit maturity period; during the preparation of the controlled release fertilizer, no waste gas, waste water and rubbish generate and the environment is not polluted, since the production process is simple without needing special equipment, the cycle is short, the cost is low, and the product price is equivalent to that of urea, the chemical fertilizer utilization is high, and the fertilizer-saving effect is outstanding, the sustained and controlled efficiency of the fertilizer is improved through coating, during different growth periods of horned melons, the way of foliage spraying or the way of combining foliage spraying with flushing and root drenching is adopted for supplementing nutritional ingredients required by the horned melons during different growth periods, and meanwhile, a fertilizing way is combined to improve the nutrition absorption in the earlier and later stages of the horned melons; the balanced combined application of nitrogen, phosphorus and potash fertilizers during horned melon production is well realized, and the fertilizer efficiency of the nitrogen, phosphorus and potash fertilizers is brought into full play.

The invention provides a tomato fertilizer. The tomato fertilizer comprises, by weight, 47-49 parts of a nitrogen fertilizer, 70-80 parts of a phosphorus fertilizer, 30-40 parts of a potassium fertilizer and 450-500 parts of medium and trace elements. The invention also discloses a using method of the fertilizer. Results of two years of experiments show that the tomato yield can be increased by upto 50%, the nitrate content of tomato fruits can be reduced by up to 17%, the soluble sugar content of the tomato can be increased by 16%, the vitamin C content can be increased by 31%, the quality of tomato is improved, and the safety of foods is ensured.

The invention relates to a method for improving cucumber output and quality and a water-soluble fertilizer, and especially relates to a method for improving cucumber output and quality by employing a negative-pressure irrigation water-fertilizer integrated device and the water-soluble fertilizer. The method is mainly characterized by comprising getting soil, drying in air, sieving, putting sieved soil in a basin, connecting the potting soil with the negative-pressure irrigation water-fertilizer integrated device, setting a negative pressure value according to soil water content results determined by soil column tests under different negative pressures, sowing in a hole every 15-20 cm in the basin, putting 4 grains into each hole, picking seedlings at a two-leaf one-core stage, reserving one seedling every hole, performing regular watering, pruning, vine binding, soil loosening, insect disease controlling and other management at the growth stage, and harvesting after cucumber grows maturely, wherein the water-soluble fertilizer for improving cucumber output and quality is employed in the fertilizing step. The reached beneficial effects comprise that reasonable water and fertilizer are relatively well provided for cucumber, and the method is simple and easy to operate and substantially improves output and quality of cucumber.

The invention discloses a low-cost chemical fertilizer additive. The low-cost chemical fertilizer additive comprises, by mass, 40 to 60 parts of distiller's grains, 6 to 10 parts of octadecylamine, 4 to 8 parts of trisodium carboxylate, 7 to 9 parts of living peptide, 5 to 7 parts of sodium nitrophenolate, 10 to 12 parts of sodium nitrophenolate, 5 to 15 parts of mannitol, 10 to 12 parts of metal protease and 6 to 8 parts of glucose. The low-cost chemical fertilizer additive improves the physicochemical properties and biological activity of the soil and is a main nutrition source of green food production.

The invention discloses an efficient fertilizer special for vegetables and relates to the technical field of agriculture. The efficient fertilizer is prepared from, by weight, 10-15 parts of rice chaff, 10-20 parts of wheat bran, 10-15 parts of plant ash, 2-3 parts of microorganism complex microbial inoculants, 2-3 parts of calcium superphosphate, 5-15 parts of urea, 5-10 parts of gallnut, 5-10 parts of ammonium chloride, 5-10 parts of potassium sulfate, 3-5 parts of magnesium oxide, 3-10 parts of powdered rock phosphate, 10-15 parts of glucose, 5-10 parts of calcium chloride, 3-10 parts of mycoprotein and 3-8 parts of ammonium bicarbonate. A preparing method comprises the following steps that rice chaff, wheat bran, plant ash, microorganism complex microbial inoculants and urea are mixed according to the proportion, closely covered with a plastic film and sealed for 6-10 days at 20-30 DEG C; then, calcium superphosphate, gallnut, ammonium chloride, potassium sulfate, magnesium oxide, powdered rock phosphate, glucose, calcium chloride, mycoprotein and ammonium bicarbonate are added and mixed. The efficient fertilizer has the advantages that the fertilizer can be used for quickly supplementing nutrition and supplementing sufficient nutrient ingredients to vegetables in time.

The invention discloses a multi-functional fertilizer additive which comprises the following components in parts by mass: 3-5 parts of ammonium thiosulfate I, 3-5 parts of ammonium thiosulfate II, 5-7 parts of disodium inosinate, 10-12 parts of dicyandiamide, 40-50 parts of microbial fertilizer, 25-35 parts of lignin, 10-20 parts of coal gangue, 10-12 parts of compound fertilizer and 4-6 parts of a trace element. The multi-functional fertilizer additive disclosed by the invention is applicable to the field of chemical fertilizer additives.

The invention discloses a method for fertilizing orchardgrass. The method utilizes urea as nitrogenous fertilizer, calcium superphosphate as phosphate fertilizer and potassium sulfate as potassic fertilizer, wherein a weight part ratio of N to P2O5 to K2O is 1.986: 1: 2.114. The method comprises the following steps of applying all the phosphate fertilizer, 45% of the potassic fertilizer and 45% of the nitrogenous fertilizer as base fertilizer into cultivation soil, applying 25% of the nitrogenous fertilizer and 25% of the potassic fertilizer as primary topdressing fertilizer into the cultivation soil in a tillering stage, and averagely applying the rest of the nitrogenous fertilizer and the potassic fertilizer into the cultivation soil after each harvest process. Through selection of appropriate nitrogenous fertilizer, phosphate fertilizer and potassic fertilizer and reasonable collocation of the fertilizer use amounts, the method satisfies orchardgrass nutritional requirements, fully improves nutrient absorption in growth earlier and later stages of orchardgrass by the fertilization processes, effectively improves orchardgrass quality and output, reduces energy consumption, avoids environmental pollution, improves soil fertility, and greatly improves economic benefits of orchardgrass production.

The invention provides a calcium supplementation method of fruit trees based on integration of water and fertilizer and relates to the technical field of calcium supplementation for fruit trees. In the spring of March to April, 4-6 cylindrical soil pits with diameter of 30-50cm are dug under the crown projection around fruit trees; straw is bundled into a cylindrical bundle which rightly fills up a soil pit and put into the soil pit; 10-20g fulvic acid, 20-30g water soluble chitosan and 250-300g calcium ammonium nitrate are well mixed; the mixture is evenly spread in the intermediate gaps of the straw bundles and finally the soil pits are covered with mulch films on the above; multiple small holes with diameter of 0.3-0.5 cm and with intervals of 5-10 cm are pinpricked on the mulch film so that water supplement is fulfilled along the mulch film small holes by means of the tube outflow method, and the water supplement volume is 15-20L / soil pits. By means of the method, water is saved, calcium supplementation for fruit trees is fulfilled, fruit physiological disease is reduced and soil organic matter is increased.