36results about How to "Meet nutrient requirements" patented technology

The invention provides a foliar fertilizer special for pineapples and an application method thereof. The foliar fertilizer special for pineapples is prepared from the following effective elements metered by pure nutrient in percentage by parts: 20-40 parts of nitrogen, 3-40 parts of phosphorus pentoxide, 12-42 parts of potassium oxide, 4-12 parts of magnesium oxide, 2-10 parts of ferrous iron, 0.1-0.4 part of zinc and 0.1-0.4 part of boron. The foliar fertilizer special for pineapples is applied in the mode of leaf surface spraying or micro-belt spray irrigation and can obviously solve the problems of trace element deficiency and nutrient imbalance of the pineapples, promote the growth and the development of the pineapples and improve the output and the quality, wherein the output of the pineapples is improved by 16.0 percent, the fruit commodity rate is improved by 11.8 percent, and the content of soluble solid is improved by 7.9 percent. The foliar fertilizer special for pineapples is simple and convenient to prepare and apply, has low price and is beneficial to large-scale popularization and application.

The invention relates to water-soluble fertilizer containing alginate and various nutrients and a preparation method of the water-soluble fertilizer. The water-soluble fertilizer comprises alginate, macro-elements N, P2O5 and K2O, medium elements Ca and Mg and trace elements Cu, Fe, Mn, Mo, Zn and B, wherein the weight percentage of the alginate is 3%., the total weight percentage of the macro-elements is 57%, the total weight percentage of the medium elements is 1%, and the total weight percentage of the trace elements is 0.64%. The preparation method includes: weighing the raw materials according to the weight percentage, and crushing and sieving; weighing the alginate, and evenly mixing with nitrogen fertilizer for standby; weighing the trace elements, and mixing with calcium and magnesium fertilizer for standby; weighing phosphorus fertilizer and potassium fertilizer, evenly mixing, adding the mixture, and sufficiently mixing to obtain the water-soluble fertilizer. By the water-soluble fertilizer, fruit yield can be increased by 20-30%, vegetable yield can be increased by 25-35%, and flower quality can be increased evidently.

A soilless culture nutrient solution for fruits and vegetables is provided. The soilless culture nutrient solution comprises A type elements, B type elements, C type elements, D type elements, E type elements and F type elements, and is prepared into three nutrient solutions for an early planting period, a later planting period, a culturing and growing period, and the like according to different needs of fruits and vegetables in the different growth stages. During preparation, the A type elements, the B type elements, the C type elements, the D type elements, the E type elements and the F type elements are respectively prepared into stock solutions, the stock solutions are diluted in clean tap water according to ratios in order and fully stirred and then pH is calibrated. The soilless culture nutrient solution meets nutrient requirements of the fruits and vegetables in each growth and development stage, improves immunity of the fruits and vegetables, reduces the occurrence rate of diseases and pest diseases, and greatly reduces pesticide spraying, thus increasing the yield, improving quality and reducing the cost. The soilless culture nutrient solution meets the development direction of organic agriculture and ecological agriculture.

The invention discloses a nutritive noodle and a production method thereof. The nutritive noodle is prepared from the following raw materials in parts by weight: 40 to 50 parts of flour, 20 to 30 parts of buckwheat powder, 10 to 20 parts of sweet potato starch, 5 to 10 parts of pueraria powder, 5 to 10 parts of Chinese yam, 1 to 3 parts of dietary alkali, 10 to 20 parts of cucumber juice and 10 to 20 parts of water. The production method comprises the following steps: preparing the raw materials, then mixing the flour, the buckwheat powder, the sweet potato starch, the pueraria powder, the Chinese yam, the dietary alkali, the cucumber juice and the water according to the proportion, stirring, curing and processing into a fine dried noodle according to a conventional process. The noodle produced by the production method disclosed by the invention is abundant in nutrition, attractive in appearance and good in mouthfeel; after the nutritive noodle is eaten for a long time, heath care and dietary therapy actions are realized; the nutritive noodle is particularly suitable for sub-health population to eat for a long time.

The invention discloses an organic and inorganic compound fertilizer for improving folium mori yield and quality of mulberry. The organic and inorganic compound fertilizer is characterized by comprising 20-30% of organic matter containing more than 10% of humic acid, 25% of inorganic nutrient which contains 15% of N, 4% of P2O5 and 6% of K2O, biological active bacteria which comprise phosphate solubilizing bacteria, potassium bacteria and nitrogen-fixing bacteria, and microelements such as B, Zn, Mn, Cu and the like. The fertilizer provides proper inorganic nutrient proportion and microelements, and can fully meet the requirements of mulberry growth on nutrient substances; the contained organic matters and the biological active bacteria can improve the physicochemical property of the soil; soil nutrient release is facilitated; the prepared fertilizer particles have the function of slowly releasing the fertilizer effect; and the fermentation times can be reduced; the labor force is saved. By adopting the fertilizer, the folium mori yield and quality of the mulberry are obviously improved.

The invention discloses a fertilizer specially used for ginger. The fertilizer is prepared from, by weight, 40-50 parts of urea, 15-25 parts of calcium superphosphate, 80-90 parts of potassium fulvate, 0.04-0.06 parts of 2-diethylaminoethyl hexanoate, 40-60 parts of earthworm manure, 3-5 parts of traditional Chinese medicinal residues and 10-15 parts of diatomite. The fertilizer disclosed in the invention is prepared through reasonably matching an inorganic fertilizer and an organic fertilizer meets nutrient demands of ginger growth; and a mass ratio of nitrogen to phosphorus to potassium in the fertilizer is about 1:0.6:2, so the ginger growth rule is met, the resource utilization rate is improved, soil environment is improved, grown ginger has high nutrition values, special flavor and low incidence of diseases, and the output is increased by 20-30%. The fertilizer has the advantages of easily available raw materials, simple preparation method and good economy values, and is worth to be popularized.

The invention discloses a blended fertilizer based on steel production waste and a preparation method thereof. The blended fertilizer is prepared by mixing 1-10 parts of steel making byproduct steel slag, 5-15 parts of waste powder formed by drying sintering flue gas ammonia desulfurization waste mud, and 3-6 parts of potassium fertilizer, wherein the total nutrient weight content of N, P and K is not lower than 35%. The preparation method comprises the following steps: preparing steel slag fine powder, waste powder and potassium fertilizer according to parts by weight, detecting to determine that the total nutrient weight content of N, P and K is not lower than 35%, and evenly mixing. The blended fertilizer disclosed by the invention contains sufficient nitrogen, phosphorus, potassium and microelements, and can sufficiently satisfy the nutrient requirements for plant growth without adding any microelement or fertilizer synergist, thereby achieving the synergistic and yield increase effects; the blended fertilizer has uniform and fine particle size, thereby avoiding soil salinization and hardening; and the invention recycles steel waste resources, thereby greatly lowering the production cost.

The present invention provides a special formula fertilizer for alkaline hickory nut and a hickory nut fertilization method. The special fertilizer is prepared from the following components in parts by weight: 3 to 10 parts of biofertilizer, 10 to 50 parts of organic fertilizer, 5 to 15 parts of enzyme preparation and 5 to 35 parts of inorganic fertilizer, wherein the organic fertilizer is prepared from candy pomace and lignin in the mass ratio of 3 to 1; the enzyme preparation is prepared from metal protease and a poly-carbon enzyme in the mass ratio of 2 to 1; the biofertilizer is bacillus;the inorganic fertilizer is at least one of nitrogen, phosphorus and potassium fertilizers. In the special formula fertilizer for alkaline hickory nut provided by the invention, the biofertilizer, theorganic fertilizer and the inorganic fertilizer are combined together, so that the effect increasing and effect prompting functions of the biofertilizer are combined with the slow effect and long effect of the organic fertilizer and the quick effect and high efficiency of the inorganic fertilizer, the quick and slow effects are balanced, the advantages complement each other, the nutrients are comprehensive, and a balanced and lasting effect is achieved.

The invention relates to a high-density aquiculture system, which comprises a main aquiculture pond, a sewage collection and discharge device, a water purifier, a microbial purification waterbed and a circulating water pump, wherein an excrement collection port is arranged at the bottom of the main aquiculture pond and is connected with a circulating water pipe; the sewage collection and discharge device is connected with the excrement collection port through the circulating water pipe and an excrement discharge outlet is arranged at the bottom of the sewage collection and discharge device; the water purifier is provided with an organic matter water solution outlet and is connected with the sewage collection and discharge device; ammonia nitrogen digestion aquatic plants are planted in the microbial purification waterbed, the microbial purification waterbed is provided with a water inlet and a water outlet, the water inlet is connected with the water purifier and the water outlet is connected with the main aquiculture pond; and the circulating water pump is arranged in the microbial purification waterbed at the end adjacent to the water outlet. The high-density aquiculture system has the advantages that an optimum growth environment of high-density fish is guaranteed; and at the same time, high-effect and high-quality organic fertilizers can be provided, so as to meet the demands for various nutrient elements for daily growth of fruits / vegetables.

The invention discloses a high-yield disease-resistant planting method of trichosanthes kirilowii maxim. The method includes the steps of (1) field preparation, wherein the ground surface of a planting field is leveled, deep and wide gullies are dug at intervals, and after the soil of the planting field is defrosted in the early Spring, base fertilizer and attapulgite are applied into the soil; (2) sowing; (3) planting, wherein planting holes are dug, humic acid fertilizer and humic organic fertilizer are evenly blended and used for filling the planting holes, vegetable seedlings are buried into the planting holes after punning, planting soil covers the seedlings, and planting water is sprayed after punning; (4) management of fertilizer and water, wherein during the period from the later August to the middle September, organic slow release fertilizer is applied to the planting field; before accelerating germination, accelerating germination fertilizer is applied for dressing; 10 days before blossoming, compound fertilizer of nitrogen, phosphorus and potassium is applied for dressing, and boric fertilizer is applied to leaf surfaces in the process of applying the compound fertilizer of nitrogen, phosphorus and potassium. The high-yield disease-resistant planting method of trichosanthes kirilowii maxim can effectively improve disease resistance of trichosanthes kirilowii maxim, further increase yield of trichosanthes kirilowii maxim and further improve quality of trichosanthes kirilowii maxim.

The invention belongs to the technical field of poultry product manufacturing, and discloses a method for manufacturing ginseng poultry products. The method aims at breeding methods of the poultry in the process of breeding. The method is characterized in that ginseng leaves active mixed feed is bred to the poultry according to an adaptive phase, beneficial bacterium drink is added to the drinking water of the poultry, high concentration ginseng extractum nutrient solution is injected to the poultry in a subcutaneous injection mode in a compatible period, and two steps of supplement and absorption increasing of effective constituent dose of the ginseng are conducted. The method for manufacturing the ginseng poultry products enables the poultry products to have original flavor and meanwhile have flavor of the ginseng and a healthcare function.

The present invention discloses a nutritious health noodle and a production method thereof, wherein the nutritive health noodle comprises, by weight, 40-45 parts of flour, 20-30 parts of buckwheat powder, 10-20 parts of sweet potato starch, 5-10 parts of radix puerariae powder, 5-10 parts of common yam rhizome, 1-3 parts of edible alkali, 10-15 parts of honey, 10-20 parts of mushroom, and 3-8 parts of edible salt. The production method comprises: preparing raw materials, mixing the flour, the buckwheat powder, the sweet potato starch, the radix puerariae powder, the common yam rhizome, the edible alkali, the honey, the mushroom juice, the edible salt and water according to a certain ratio, stirring, aging, and processing fine dried noodles according to a conventional process. The nutritious health noodle of the present invention has characteristics of rich nutrition, beautiful color and good taste, can provide effects of health and dietary therapy after the long-term consumption, and is particularly suitable for the long-term consumption of sub-healthy people.

The invention discloses health-caring sweet potato noodles and a preparation method thereof. The health-caring sweet potato noodles are prepared from the following raw materials in parts by weight: 40-45 parts of flour, 20-30 parts of glutinous rice flour, 10-20 parts of sweet potato starch, 5-10 parts of kudzuvine root powder, 5-10 parts of Chinese yams, 10-20 parts of pumpkins, and 3-8 parts of edible salt. The preparation method comprises the following steps: preparing raw materials; mixing the flour, the glutinous rice flour, the sweet potato starch, the kudzuvine root powder, the Chinese yams, pumpkin juice, honey, the edible salt and water according to proportion; carrying out stirring and curing; and then, preparing the cured mixture into fine dried noodles according to conventional processes. The sweet potato noodles prepared by the preparation method are rich in nutrition, beautiful in color and luster, and good in taste; being frequently eaten, the sweet potato noodles have health-caring and diet-therapy effects. The health-caring sweet potato noodles are especially suitable for long-term consumption of sub-healthy people.

The invention discloses a crop disease-resistant fertilizer and a preparation method thereof, wherein the crop disease-resistant fertilizer comprises, by weight, 100 parts of straw, 240 parts of 8% ammonia water, 2-4 parts of an insecticide, 10-20 parts of tea bran, 5-10 parts of calcium superphosphate, 5-15 parts of bone powder, 7-13 parts of bentonite, and 20-30 parts of water. According to the present invention, the crop disease-resistant fertilizer can improve the carbon dioxide fixation ability of crops, can achieve the carbon cycle process, and can promote the growth of roots; the crop disease-resistant fertilizer contains a variety of effective components, can meet the demands of crops on various nutrient elements, has effects of plant growth promoting, crop yield improving, crop quality improving and soil improving, can enhance the resistance of crops, can improve the disease resistance and the pest resistance of crops, can reduce the incidence of pests and diseases of crops, and does not have harmful substance residue.

The invention relates to the technical field of agricultural production fertilizers, especially to a special water-soluble fertilizer for Brassica campestris, and a preparation method thereof, whereinthe raw materials comprise, by weight, 70-74 parts of ammonium sulfate, 15-17 parts of potassium chloride, 8-12 parts of urea, 4-6 parts of monoammonium phosphate, 14-17 parts of potassium fulvate, 3-7 parts of magnesium sulfate, 1-2 parts of a trace element amino acid chelate, 1-3 parts of a seaweed extract, 0.5-0.9 part of compound microorganisms, 0.2-0.6 part of gamma-polyglutamic acid and 0.2-0.6 part of borax. According to the invention, the special water-soluble fertilizer used for Brassica campestris and obtained through pre-mixing and raw material crushing has the reasonable ratio ofnitrogen to phosphorus to potassium to medium and trace nutrient elements according to the growth fertilizer requirement rule of Brassica campestris, can meet the nutrient requirements of Brassica campestris in the whole growth period, and can improve the soil fertility, improve the soil structure and solve the problems of soil acidification and hardening.

The invention discloses a special white paeony root fertilizer for enhancing disease resistance. The special white paeony root fertilizer is prepared from, by weight, 32-37 parts of rotten vegetables leaves, 30-35 parts of straw, 48-53 parts of animal dung, 10-14 parts of chicken feather, 8-12 parts of duck feather, 6-9 parts of bone meal, 15-19 parts of Chinese wax gourd peel, 18-21 parts of urea, 12-16 parts of diammonium phosphate, 9-13 parts of calcium magnesium phosphate, 1-3 parts of zinc sulfate, 1-3 parts of ferrous sulfate, 0.4-0.9 part of molybdenum sulfate, 0.6-1.0 part of borax, 10-14 parts of plant ash, 8-11 parts of dandelion, 6-9 parts of purslane, 3-6 parts of bamboo leaves 3-6 parts of houttuynia cordata and 1-4 parts of mint. The invention further discloses a preparation method of the special white paeony root fertilizer for enhancing disease resistance. The fertilizer is rich in nutrition, and can meet the requirements of white paeony root plants for various nutrition elements and improve the disease and pest resistance of the white paeony roots.

The invention relates to a special additional fertilizer for fruit vegetable. The special additional fertilizer comprises a nitrogenous fertilizer, a phosphate fertilizer, a potash fertilizer, a calcareous fertilizer, a magnesium fertilizer, borax and alginic acid. The special additional fertilizer comprises the following effective chemical elements by weight: in terms of pure nutrients, 16.97 to 20.33% of nitrogen, 3.65 to 5.95% of phosphorus pentoxide, 20.28 to 23.92% of potassium oxide, 1.28 to 1.99% of calcium, 0.28 to 0.34% of magnesium, 0.04 to 0.06% of boron and 0.5 to 1.5% of alginic acid. The special additional fertilizer can meet demands of fruit vegetable for a variety of fertilizers in a later growth phase and provides the fruit vegetable with medium and trace elements needed in growth of the fruit vegetable. The special additional fertilizer for fruit vegetable in the invention can improve the output and quality of fruit vegetable.

The invention belongs to the technical field of poultry product manufacturing, and discloses a method for manufacturing leonurus poultry products. The method aims at breeding methods of the poultry in the process of breeding. The method is characterized in that leonurus leaves active mixed feed is bred to the poultry according to an adaptive phase, beneficial bacterium drink is added to the drinking water of the poultry, high concentration leonurus extractum nutrient solution is injected to the poultry in a subcutaneous injection mode in a compatible period, and two steps of supplement and absorption increasing of effective constituent dose of the leonurus are conducted. The method for manufacturing the leonurus poultry products enables the poultry products to have original flavor and meanwhile have flavor of the leonurus and a healthcare function.

The invention discloses a making method of avocado pear noodles. The making method comprises the following steps of mixing 200 parts by weight of flour with 60-80 parts by weight of avocado pears, 10-20 parts by weight of mashed bananas, 10-20 parts by weight of apple juice, 10-20 parts by weight of mashed laver, 2-3 parts by weight of table salt and 1-2 parts by weight of pepper powder to obtaina mixture, adding 200-250 parts by weight of cold boiling water to the mixture, performing mixing, and performing fermentation at 25 DEG C for 24h. The noodles made by the method disclosed by the invention are emerald green in color, rich in nutrition, chewy in mouth feel, and unique in taste, can well promote the appetite of people, and can meet requirements of people for various nutrient elements.

The invention relates to total nutrient milk suitable for patients with nephropathy and a preparation method thereof, and the total nutrient milk is used for nutrition supply of the patients with nephropathy and belongs to formula food for special medical purposes. The total nutrient milk is a complex multi-phase system composed of water, grease, protein, carbohydrate, vitamins, mineral substances and the like, an emulsifier stabilizer is added into the system, and the phenomena of fat floating, water bleeding, protein flocculent precipitation and the like of the total nutrient milk can be avoided, so that the quality and stability of the product are guaranteed, and the total nutrient milk is rich and balanced in nutrition; the health-care food is easy for patients with nephropathy to digest and absorb nutrition, can relieve the burden of kidneys, and has excellent stability and nutrition comprehensiveness and huge market value.

The invention discloses a special rice water-soluble fertilizer for inhibiting adsorption of heavy metal lead, and a preparation method thereof, and belongs to the technical field of fertilizers. Thefertilizer is prepared from glutamic acid fermentation tail liquid, a microbial agent, potassium silicate, calcium superphosphate, diammonium phosphate, urea, potassium fulvate, potassium chloride, ammonium bicarbonate, alternaria tenuissima activator protein, ethylene diamine tetraacetic acid disodium salt and polypropylene alcohol according to a certain weight ratio. The fertilizer can effectively reduce activity of lead in heavy metal contaminated soil, absorption of rice to lead is reduced, and guarantee is provided for food safety of people.

The invention provides an alkaline formula fertilizer special for Phyllostachys praecox cv. Prevernalis and application of the alkaline formula fertilizer. The alkaline formula fertilizer special forPhyllostachys praecox cv. Prevernalis consists of the following components in parts by weight: 2 to 8 parts by weight of biological bacterial fertilizer, 10 to 45 parts by weight of organic fertilizer, 5 to 10 parts by weight of enzyme preparation, and 10 to 40 parts by weight of inorganic fertilizer, wherein the organic fertilizer comprises sugar residue and lignin in a mass ratio of 3:1, and theenzyme preparation comprises metalloproteinase and Jutan enzyme (an enzyme capable of enhancing carbon dioxide absorption effect of crops) in a mass ratio of 2:1. The invention also provides a methodfor applying the alkaline formula fertilizer special for Phyllostachys praecox cv. Prevernalis. The alkaline formula fertilizer special for Phyllostachys praecox cv. Prevernalis provided by the present invention is an organic-inorganic ecological fertilizer which combines the enzyme fertilizer, biological fertilizer, organic fertilizer and inorganic fertilizer and mutually integrates synergic andpromotion effects of the biological fertilizer, slow-acting effect and long-acting effect of the organic fertilizer and quick-acting effect and high efficiency of the inorganic fertilizer, has the advantages of quickness and slowness combination, complementary advantages, comprehensive nutrients, balance and lasting, and is beneficial to high quality and high yield of bamboo shoots.

The invention relates to special controlled-release fertilizer for sunflowers. The special controlled-release fertilizer for sunflowers comprises nitrogen fertilizer, phosphorus fertilizer, potassiumfertilizer, sulfur fertilizer, iron fertilizer and zinc fertilizer; and the special controlled-release fertilizer for sunflowers comprises the following various effective chemical elements in percentage by weight based on pure nutrients: 26 to 28 percent of nitrogen, 10 to 12 percent of phosphorus pentoxide, 7 to 9 percent of potassium oxide, 0.2 to 2.0 percent of sulfur, 0.2 to 0.6 percent of iron, 0.2 to 0.7 percent of zinc, 0.5 to 1 percent of dicyandiamide and 6 to 9 percent of humic acid, wherein the nitrogen fertilizer comprises controlled-release nitrogen fertilizer, and the nitrogen content of the controlled-release nitrogen fertilizer is 28.6 to 34.6 percent of the total amount of the nitrogen in the nitrogen fertilizer. The fertilizer is reasonable in nutrient proportioning, meets the demand on nutrients by the sunflowers in the whole growth period, has high fertilizer utilization rate and saves input and labor cost of topdressing; meanwhile, a proper amount of iron fertilizer and zinc fertilizer are added, so that the content of the iron and the zinc in the sunflower seeds can be increased, and a foundation is laid for improving the quality of the sunflowers, enhancing the trace element nutrition and increasing the economic benefit.

The invention relates to a controlled-release fertilizer special for millet. The controlled-release fertilizer comprises a nitrogen fertilizer, a phosphorous fertilizer, a potash fertilizer, a sulphurfertilizer, an iron fertilizer and a zinc fertilizer. According to the calculation of pure nutrients, various effective chemical elements in the controlled-release fertilizer special for the millet comprise, by weight, 18-20% of nitrogen, 9-11% of phosphorous pentoxide, 15-17% of potassium oxide, 1.4-2.8% of sulphur, 0.3-1.0% of iron, 0.3-1.1% of zinc, 0.5-1% of dicyandiamide and 7-9% of humic cacid, wherein the nitrogen fertilizer comprises a controlled-release nitrogen fertilizer, and the content of nitrogen in the controlled-release nitrogen fertilizer accounts for 40-50% of the total nitrogen content in the nitrogen fertilizer. The fertilizer is reasonable in nutrient ratio, the requirement of the millet for the nutrients in the whole growing stage is met, the fertilizer utilization rate is high, and the cost for topdressing and labor cost are reduced; meanwhile, an appropriate quantity of the iron fertilizer and the zinc fertilizer is added, the content of iron and zinc in grainsof the millet can be increased, and a basis is laid for improving the quality of the millet, enhancing micro-element nutrition and increasing economic benefits.

The invention relates to the technical field of agricultural planting, and particularly discloses a method for managing ratoon sugarcanes through field fermentation of sugarcane stalks, which mainly comprises the following steps: (1) after cutting sugarcanes, recovering the sugarcane stalks, and crushing the sugarcane stalks; (2) pretreating the straws by using urea and zinc nitrate, and then fermenting the straws in a sugarcane field to obtain a sugarcane straw decomposed organic fertilizer; (3) after stump shoveling treatment, mixing a sugarcane straw decomposed organic fertilizer and a sugarcane medical fertilizer, scattering the mixture around the sugarcane stump, and covering soil; (4) fully covering the ratoon sugarcane stumps by using a mulching film; 5, film uncovering is conducted in time from April to May, irrigation is conducted after seedlings are aligned, seedling fertilizer is applied, small hilling is conducted, and grass sealing is conducted; applying a stem-attacking fertilizer in a jointing growth period, deinsecting, carrying out large-scale ridging and sealing grass; tail strengthening fertilizer is applied in late August. The method for managing the ratoon sugarcanes is beneficial to improving the emergence rate of the ratoon sugarcanes, increasing the yield and sucrose content of the sugarcanes, and realizing on-site effective utilization of straws after harvesting the sugarcanes.

The invention discloses a special formula fertilizer for lemon young trees and a preparation method thereof. The special formula fertilizer for lemon young trees is composed of urea, monoammonium phosphate, potassium sulfate, calcium magnesia phosphate fertilizer, humic acid, borax, white vitriol, magnesium oxide and diatomite. The preparation method comprises the following steps: respectively pulverizing urea, monoammonium phosphate, calcium magnesia phosphate fertilizer and potassium sulfate, carrying out aggregation granulation by humidification and heating, meanwhile, adding a mixture of the magnesium oxide, borax, white vitriol, humic acid and diatomite, drying the granulated material, screening and cooling to obtain the special fertilizer for lemon young trees. The method has the advantages of wide raw material sources and high universality, and is easy to implement and simple to operate. The special fertilizer disclosed by the invention implements reasonable balanced nutritional requirements for the young lemon garden, accelerates the growth and development of the lemon young trees, and can enable the lemon young trees to form crowns and blossom in advance, thereby putting into production.

The invention relates to controlled-release fertilizer special for soybeans. The controlled-release fertilizer comprises nitrogen fertilizer, phosphate fertilizer, potassium fertilizer, sulfur fertilizer, zinc fertilizer, iron fertilizer and molybdenum fertilizer. In the controlled-release fertilizer, effective chemical elements include, by weight of pure nutrients, 19-21% of nitrogen, 9-11% of phosphorus pentoxide, 15-17% of potassium oxide, 0.41-0.82% of sulfur, 0.4-0.7% of iron, 0.4-0.8% of zinc, 0.3-0.4% of molybdenum and 7-9% of humic acid; the nitrogen fertilizer includes controlled-release nitrogen fertilizer, and the content of the nitrogen in the controlled-release nitrogen fertilizer is 38-53% of the total content of the nitrogen in the nitrogen fertilizer. The controlled-releasefertilizer special for the soybeans has the advantages that the ratio of fertilizer nutrients is reasonable and accords with the nutrient demand of the whole growth period of the soybeans, the fertilizer utilization rate is high, and the input and labor costs for top dressing are saved; appropriate amounts of the iron fertilizer and the zinc fertilizer are added, so that the content of the zinc in soybean seeds can be increased, and the foundation is laid for the improvement of soybean quality and economic benefits.

The invention discloses a blended fertilizer based on steel production waste and a preparation method thereof. The blended fertilizer is prepared by mixing 1-10 parts of steel making byproduct steel slag, 5-15 parts of waste powder formed by drying sintering flue gas ammonia desulfurization waste mud, and 3-6 parts of potassium fertilizer, wherein the total nutrient weight content of N, P and K is not lower than 35%. The preparation method comprises the following steps: preparing steel slag fine powder, waste powder and potassium fertilizer according to parts by weight, detecting to determine that the total nutrient weight content of N, P and K is not lower than 35%, and evenly mixing. The blended fertilizer disclosed by the invention contains sufficient nitrogen, phosphorus, potassium and microelements, and can sufficiently satisfy the nutrient requirements for plant growth without adding any microelement or fertilizer synergist, thereby achieving the synergistic and yield increase effects; the blended fertilizer has uniform and fine particle size, thereby avoiding soil salinization and hardening; and the invention recycles steel waste resources, thereby greatly lowering the production cost.