33 results about "Magnesium chelate" patented technology

A tobacco foliar fertilizer and a preparation method thereof. The tobacco foliar fertilizer includes following components, by weight: 20-25 parts of potassium tripolyphosphate, 15-20 parts of potassium citrate, 3-6 parts of sargassum fermentation extract, 0.5-2 parts of glutathione, 0.5-2 parts of [beta]-deoxyglucose, 0.1-1 part of trans-abscisic acid, 0.5-1 part of xylooligosaccharide, 0.2-0.5 parts of salicylic acid, 1-3 parts of boric acid, 0.1-0.5 parts of ammonium molybdenate, 0.5-2 parts of EDTA-chelating zinc, 0.5-2 parts of EDTA-chelating magnesium, 0.3-2 parts of EDTA-chelating manganese, 0.3-1 part of EDTA-chelating copper, 0.5-1 part of alkyl polysaccharide glycoside and 31-56.2 parts of water. The tobacco foliar fertilizer is reasonable in combination and proportion, can promote growth of tobacco, can enhance the resistance capability on viruses, cold and dryness of tobacco, can increase yield, is green and environmental-friendly and can greatly improve quality of tobacco.

The invention discloses a special anti-cracking foliar fertilizer for a jujube tree, and a preparation method and an application thereof. The special anti-cracking foliar fertilizer for the jujube tree is composed of the following components in percentages by mass: 5% to 8% of potassium chloride, 7% to 15% of calcium chloride, 1% to 5% of borax, 1% to 5% of chelated magnesium, 1% to 3% of chelatediron, 0.5% to 1.5% of zinc sulfate, 0.2% to 0.6% of manganese sulfate and 3% to 4% of organosilicon, with the balance being water. The foliar fertilizer provided by the invention has low production cost, is safe and effective, and is beneficial for and harmless to human and livestock; mineral elements added in the foliar fertilizer are needed by animals, and can effectively prevent a variety of diseases like yellow-leaf disease and little-leaf disease caused by nutrient deficiency of a fruit tree; the disease resistance of a tree body is strengthened; the quality of a fruit is improved; the soluble sugar content of a fruit is improved by 14.3% to 43.5%, the weight of a single fruit is increased by 5% to 13.3%; the proportion of high-quality fruits is increased by 20.2% to 69.8%; the proportion of low-quality fruits is decreased by 28.9% to 76.9%; the fruit cracking rate of golden-silk jujube is significantly decreased by 30% to 45%; meanwhile, the contents of mineral elements in fruits and leaves are significantly improved; and the foliar fertilizer is free of any side effects, is safe and reliable, and is a green and environment-friendly product.

The invention provides a potato water-soluble fertilizer and an applying method thereof. The potato water-soluble fertilizer consists of the following components: 100-500 parts by weight of urea, 100-500 parts by weight of monopotassium phosphate, 100-600 parts by weight of potassium nitrate, 10-500 parts by weight of potassium sulphate, 1-10 parts by weight of polymerized boron, 1-5 parts by weight of molybdate, 1-10 parts by weight of chelated zinc, 1-10 parts by weight of chelated copper, 1-40 parts by weight of chelated calcium, 1-20 parts by weight of chelated magnesium, 1-10 parts by weight of chelated manganese, 1-10 parts by weight of potassium metasilicate, 1-10 parts by weight of potassium alginate, 1-5 parts by weight of chitosan oligosaccharide, and 1-3 parts by weight of silicon dioxide anticaking agent. The potato water-soluble fertilizer can greatly increase the chlorophyll content, the photosynthetic net assimilation rate and the root system activity of potato, increase the tuber number of each single plant, increase the weight of each tuber, increase the commodity potato rate, and increase the contents of starch, protein, and vitamin C.

The invention provides water soluble fertilizer capable of improving grape sweetness and an applying method. The water soluble fertilizer is composed of, by mass, 10-50 parts of urea, 10-300 parts of monopotassium phosphate, 10-700 parts of potassium nitrate, 1-10 parts of calcium chelate, 1-10 parts of magnesium chelate, 1-5 parts of manganese chelate,1-7 parts of zinc chelate, 1-10 parts of polyborate, 1-2 parts of sodium molybdate, 1-3 parts of chitosan oligosaccharide, 1-10 parts of potassium alginate, 1-5 parts of brown algae polysaccharides and 1-3 parts of gaseous phase silica anticaking agents. The water soluble fertilizer can substantially increase the sugar content of grapes, improve grape sweetness, increase the sugar-acid ratio and increase nutritive value and commodity value of the table grapes.

The invention relates to the technical field of agricultural technology plant nutritional water flush fertilizer, and especially relates to a citrus sugar-increasing nutritional agent; the composition comprises the following components in parts by weight: 6-13 parts of potassium fulvate, 1-5 parts of a compound amino acid raw powder, 7-15 parts of potassium dihydrogen phosphate, 1-7 parts of EDTA chelated calcium, 0.5-6 parts of EDTA chelated magnesium, 1-3.5 parts of EDTA chelated iron, 1-3.8 parts of EDTA chelated zinc, 0.5-3.6 parts of EDTA chelated copper, 0.5-3.8 parts of EDTA chelated manganese, 1-7 parts of sodium tetraborate, 0.8-2.8 parts of ammonium molybdate, 0.001-0.09 part of compound sodium nitrophenolate, 0.6-2.1 parts of organosilicon, and 45-70 parts of water; foliar spraying and root irrigation are adopted. The compound water flush fertilizer is simple and convenient in applying method, is a multi-component fertilizer which can be completely dissolved in water, achieves integration of water and fertilizer, and is extremely uniform in fertilization and comprehensive in nutrition; after the product is used, the citrus quality is improved obviously, the peel is thin, the taste is sweet, the mouthfeel is delicate, and the contents of soluble solids and soluble sugar are increased significantly.

The invention discloses a water-soluble quick-acting drip irrigation fertilizer. The water-soluble quick-acting drip irrigation fertilizer is prepared from the following components in parts by weight: 10-20 parts of fulvic acid potassium, 8-12 parts of potassium sulfate, 8-12 parts of ammonium nitrogen, 8-12 parts of plant ash, 2-4 parts of polyaspartic acid, 4-6 parts of water-soluble phosphorus, 1.5-2.5 parts of capsaicin, 3-5 parts of purple sweet potato leaf micro-powder, 1.5-2.5 parts of isolated soybean protein, 0.4-0.6 part of alpha-pimacol, 4-6 parts of modified corn starch, 1-2 parts of magnesium chelate, 1-3 parts of compound sodium nitrophenolate, 1-2 parts of sophora flavescens extract, 1-2 parts of curcumin, 0.4-0.6 part of nano borax, 0.4-0.6 part of saponin extract, 1-2 parts of lemon leaf micro-powder, 0.4-0.6 part of hydroxypropyl-beta-cyclodextrin, 0.5-1.5 parts of sea mud micro-powder, 1-2 parts of naphthylacetic acid and 70-90 parts of distilled water. According to the water-soluble quick-acting drip irrigation fertilizer, water and fertilizers can be saved, the fertilizer is instantly soluble and quick-acting, the waste of resources can be avoided, chemical pollution is avoided, and the ecological environment is better protected.

The invention belongs to the field of crop fertilizers and in particular relates to a special fertilizer for enhancing the originally ecological flavor of pineapple. The special fertilizer is prepared from urea, monopotassium phosphate, potassium sulfate, calcium humate, magnesium amino acid chelate, zinc amino acid chelate, manganese amino acid chelate, ammonium ferric citrate and an aroma enhancement inductive agent. According to the special fertilizer, the contents of nitrogen phosphorus and potassium nutrients can be reasonably proportioned according to the fertilizer needing characteristics of the pineapple during growth, medium trace elements such as calcium, magnesium, zinc, manganese and iron, required by the fruit development and growth period of the pineapple, are added, the growth and development of the pineapple are improved and the yield of the pineapple is improved; the aroma enhancement inductive agent is added in the special fertilizer, so that the conversion efficiency of amino acid in the pineapple body can be improved, the catalytic activity for synthesizing the key enzyme by use of the aromatic ester substances is promoted, the content of the aromatic ester substance in the pineapple is increased, and the originally ecological flavor of the pineapple is rich; when the special fertilizer is applied in the fruit growth maturation period of the pineapple, the output of the pineapple is improved, the originally ecological flavor of the pineapple is increased and the special fertilizer has high market application value.

The invention relates to the field of study of microelement fertilizers and particularly relates to magnesium-enriched foliar nutrient for promoting growth of flower and fruit type traditional Chinese medicinal materials. The magnesium-enriched foliar nutrient comprises 65-75 parts of water-soluble magnesium fertilizer, 5-10 parts of chelated magnesium, 3-6 parts of alginic acid, 5-12 parts of plant-growth promoter, 5-10 parts of auxiliary microelement and 3-5 parts of surface active agent. Simultaneously, the magnesium-enriched foliar nutrient contains a quick-dissolving type magnesium fertilizer and the surface active agent, and integrates timeliness and absorptivity. The magnesium-enriched foliar nutrient has the beneficial effects that the problem of magnesium deficiency in the planting process of the traditional Chinese medicinal materials is mainly solved, and the magnesium-enriched foliar nutrient is especially suitable for sandy soil and acid soil; the surface active agent is adopted to promote the absorption of the foliar nutrient, the permeability of the nutritional ingredients is high and the absorptivity of the nutritional ingredients is high; due to containing of a growth regulator, the plant cell division is promoted, the plant yield is increased, and the matching effect of the growth regulator and the magnesium fertilizer is better; and the formula is reasonable, the yield-increasing effect is obvious, and the content of effective ingredients of the medicinal materials is increased.

A nutritional supplement is disclosed and which includes an ingestible mixture of Magnesium Chelate, Malic Acid, Dimethylglycine HCL and Niacinamide in amounts which, when ingested, reduces the occurrence of chronic exertional compartment syndrome in an athlete.

A humic acid, boron and magnesium chelated insecticide-fertilizer comprises the following components in parts by weight: 20-30 parts of urea, 10-15 parts of diammonium hydrogen phosphate, 10-15 parts of potassium sulfate, 22-25 parts of humic acid, 1-2 parts of ammonium borate, 1-2 parts of magnesium sulfate, 1-1.5 parts of benthiavalicarb-isopropyl and 0.5-1 part of dinotefuran. Ammonium borate, magnesium sulfate and humic acid are added into a reactor and then added with water to react at 80-90 DEG C, as a result, a boron and magnesium chelation fertilizer solution is prepared; benthiavalicarb-isopropyl and dinotefuran are added into the boron and magnesium chelation fertilizer solution to obtain a pesticide chelation fertilizer mixed solution; urea, potassium sulfate and diammonium phosphate are mixed and added into a pelletizer and made into pellets after being sprayed with the pesticide chelation mixed solution, so as to the humic acid, boron and magnesium chelated insecticide-fertilizer. The humic acid, boron and magnesium chelated insecticide-fertilizer is rich in nutrition and high in utilization ratio of elements B and Mg, and not only can provide required nutrition to plants, but also has effect of insect killing, thereby effectively improving the yield of crop.

The invention provides a chemical fertilizer synergist for fruit trees. The chemical fertilizer synergist for fruit trees is prepared from the following raw materials in parts by weight: 12-22 parts of calcium oxalate, 10-18 parts of manganese oxide, 30-40 parts of super absorbent resin, 10-18 parts of alkanol milk powder, 5-9 parts of diphenhydramine, 3-7 parts of magnesium chelated humate, 2-6 parts of seaweed fermented dregs, 2-8 parts of sepiolite, 0.2-2 parts of nitrogen-fixing bacteria, 3-7 parts of phosphorylated chitosan, 2-10 parts of camellia seed pulp and 8-20 parts of polyacrylamide. The invention relates to the technical field of chemical fertilizer production. The chemical fertilizer synergist for fruit trees provided by the invention can enhance absorption of chemical fertilizers by the fruit trees, so that the utilization ratio of chemical fertilizer is increased, and the disease resistance of the fruit trees can be also improved. The chemical fertilizer synergist for fruit trees plays roles of expelling insects and reducing plant diseases and insect pests.

The invention discloses a production method of drip-irrigated water-flush fertilizer and belongs to the field of agricultural fertilizer. The production method comprises the following steps of respectively crushing 34-36% of urea, 28-30% of diammonium phosphate, 30% of potassium sulfate, 0.5% of humic acid-zinc chelate, 0.5% of humic acid-copper chelate, 1% of humic acid-iron chelate, 0.5% of humic acid-magnesium chelate, 0.5% of bio-enzyme, 1% of a soil conditioning agent, 1% of a plant growth promoter and 1% of rooting powder by a crusher and blending the powder by a mixer to obtain the drip-irrigated water-flush fertilizer. The drip-irrigated water-flush fertilizer is rich in nutrients, has fast and stable fertilizer efficiency, is generally suitable for plants such as cotton, fruits, vegetables and flowers, can effectively promote plant rooting, growing power improvement and root well-development, can improve a fruit yield, can ensure flower and fruit retention, can reduce malformed fruits and can improve stress resistance.

The invention discloses a seaweed calcium-magnesium fertilizer, and belongs to the technical field of water-soluble fertilizers. The high-concentration calcium-magnesium water-soluble fertilizer is prepared through chelation reaction of calcium ions, magnesium ions, fish protein polypeptide, small peptide and amino acid, a certain amount of seaweed zymolyte is added, the modification effect of functional active substances such as algal polysaccharides on the calcium-magnesium chelate is fully utilized, the stability of the calcium-magnesium fertilizer is remarkably improved, the problems of precipitation and layering caused by direct mixing are avoided, the product is good in water solubility and can be easily and thoroughly absorbed by plants, and the product utilization rate is increased; and meanwhile, through synchronous chelation reaction of calcium ions and magnesium ions, the calcium ions and the magnesium ions act on plants at the same time, the synergistic effect of the calcium ions, the magnesium ions, fish protein polypeptide and seaweed zymolyte is brought into full play, acid soil can be remarkably improved, the calcium deficiency symptom of crops is prevented, the yield of commercial crops is increased, and the quality is improved. The fertilizer can be used for foliar spraying, can also be used along with water flushing, and is simple, convenient, high in absorption and utilization rate and wide in market prospect.

The invention relates to the technical field of chemical fertilizer production, and particularly relates to a chemical fertilizer synergist used for apple trees. Raw materials of the synergist include, by weight, 10-25 parts of an effective active component, 10-16 parts of a traditional Chinese medicine preparation, 30-45 parts of supper absorbent resin, 8-16 parts of alkanol emulsifiable powder, 3-11 parts of diphenhydramine, 1-8 parts of magnesium chelated with humic acid, 3-8 parts of seaweed fermentation dregs, 1-5 parts of sepiolite, 0.1-0.8 part of azotobacteria, 1-7 parts of phosphorylated chitosan, 3-10 parts of camellia seed meal, and 10-17 parts of polyacrylamide. The synergist can significantly promote chemical fertilizer absorption by apple trees, thus increasing the utilization rate of chemical fertilizers, boosting disease resistance, achieving a pest expelling effect, and reducing disease and pest damage.

The invention relates to specifically relates to a magnesium-rich ground nutrient for a fruit tree and an application method thereof, belonging to the field of research on microelement fertilizer. The magnesium-rich ground nutrient comprises 60 to 70 parts of water-soluble magnesium fertilizer, 10 to 15 parts of slightly-soluble magnesium fertilizer, 3 to 5 parts of magnesium chelate, 1 to 3 parts of microbial fertilizer, 1 to 2 parts of rare earth, 1 to 3 parts of humic acid, 5 to 12 parts of a plant growth promoter and 5 to 10 parts of accessory microelements. The magnesium-rich ground nutrient contains both instant magnesium fertilizer and slow-release magnesium fertilizer, so the magnesium-rich ground nutrient has both fast action performance and long-acting performance; the magnesium-rich ground nutrient is uniformly sprayed onto the roots of a fruit tree in stages to promote growth of fruit, increase output and reduce insect diseases. The invention has the following beneficial effects: the magnesium-rich ground nutrient mainly overcomes the problem of magnesium shortage during plantation of the fruit tree and is especially applicable to sandy soil and acidic soil; with a combination of the easily-soluble magnesium fertilizer and the slow-release magnesium fertilizer, magnesium can be rapidly supplemented and magnesium fertilizer can be continuously provided in a period after application; the magnesium-rich ground nutrient contains the plant growth promoter and is thus capable of promoting division of plant cells and improving plant output; and the magnesium-rich ground nutrient is reasonable in formula and obvious in yield increasing effect and improves fruit quality.

The invention relates to a chelated-Mg composite feed and a preparation method thereof. The chelated-Mg composite feed is prepared by processing the following raw materials in parts by weight: 20-30 parts of defatted rice bran, 10-20 parts of corn flour, 10-15 parts of sweet potato vine powder, 10-20 parts of wheat bran, 15-30 parts of soybean cake powder, 30-40 parts of sea cucumber intestine extract chelated Mg, and 4-6 parts of bacillus subtilis. A preparation method of the sea cucumber intestine extract chelated Mg comprises the following steps: (1) sea cucumber intestine pretreatment; (2) sea cucumber intestine homogenizing; (3) primary enzymolysis; (4) secondary enzymolysis; (5) ultrafiltration; (6) nanofiltration; and (7) chelation. The prepared chelated-Mg composite material capable of promoting digestion and assisting growth is rich in nutritional ingredient, easy to absorb and utilize, high in absorption and utilization rate, low in contents of impurities and heavy metals, and high in nutritive value, and is capable of not only replenishing magnesium element, but also replenishing various nutritive elements from sea cucumber intestines.

The invention relates to an amino acid composite liquid fertilizer special for calcareous soil. A liquid fertilizer mother solution is a mixed solution of concentrated biogas slurry, a welsh onion extract and an amino acid stock solution; the macroelement is at least one of urea, ammonium polyphosphate, urea phosphate, potassium dihydrogen phosphate, dipotassium hydrogen phosphate and potassium sulfate; the medium element comes from amino acid chelated calcium, amino acid chelated magnesium, and magnesium sulfate; the microelement is at least one of EDDHA-Fe, EDTA-Mn, EDTA-Cu, EDTA-Zn, zinc sulfate, sodium octoborate and boric acid; and also EDTA-Si and a rare earth liquid fertilizer are added. According to the invention, the concentrated biogas slurry and amino acid stock solution compose a mixed solution in a ratio of 1:4, then according to the nutritional requirement law of crops, a specific nutritional material formula is selected, the raw materials are added in a specific adding order and are mixed evenly so as to obtain the fertilizer product. The amino acid composite liquid fertilizer provided by the invention has the advantages of balanced nutrition, comprehensive functions, good water solubility and moderate acidity, and is especially suitable for large area popularization and application in northern calcareous soil.

The invention discloses application of stropharia rugosoannulata polysaccharide, a resistance inducer and a grape cultivation method. Research finds that when the stropharia rugosoannulata polysaccharide is prepared into a resistance inducer for grape cultivation, the disease resistance of grape plants can be improved, pesticide use is reduced, the prevention and treatment effect on grape downy mildew and grape anthracnose diseases is good, the yield and quality of grape fruits can be improved, and the stropharia rugosoannulata polysaccharide is safe to grapes under the treatment concentration. The stropharia rugosoannulata polysaccharide can be independently prepared into a resistance inducer and can also be compounded with other components such as amino-oligosaccharin, calcium amino acidchelate and magnesium amino acid chelate, and after compounding, the prevention and treatment effect of the inducer can be further improved.

The embodiment of the invention discloses a chelated magnesium compound preparation and a preparation method thereof, and belongs to the technical field of fertilizers. The compound preparation is prepared from magnesium nitrate, glutamic acid and humic acid, the weight ratio of magnesium nitrate to glutamic acid to humic acid is (9-11): (0.8-1.2): (0.8-1.2), and the content of magnesium in the compound preparation is 500-510g / L. Glutamic acid and humic acid are used as chelating agents of the chelated magnesium compound preparation, the chelating performance on magnesium is good, and the utilization rate of chelated magnesium in the prepared compound preparation is high. Accelerated stability tests show that the reduction rate of the content of chelated magnesium in 90d is less than 3%, the chelated magnesium has good stability, and the problems of instability of application of a single magnesium element and antagonism with potassium in soil are solved.

The invention relates to the technical field of pesticide production and processing, and discloses a fertilizer capable of reducing pesticide residues of crops. The fertilizer comprises 2.1-2.3% of shale powder, 2.4-2.5% of nano-vermiculite powder, 1.3-1.4% of taurine, 0.9-1% of magnesium glycinate chelate, 0.3-0.4% of sodium selenite, 0.2-0.3% of compound sodium nitrophenolate, 3-5% of sodium metasilicate, 1-2% of cyanuric acid, 1.2-1.3% of natural pea extract, 0.9-1% of sodium citrate, 2.3-2.4% of wool fat, 3.1-3.2% of nano-silicon micro-powder, 1.2-1.3% of terpilenol, 0.9-1% of alkyl glucoside, 13-14% of medium-hole honeycomb briquette slag, 14-15% of perlite, 20-21% of turf, 30-31% of rice husks, 2.1-2.2% of fructo-oligosaccharide, 1.8-1.9% of eucommia ulmoides leaf polysaccharide, a proper amount of mineralized small molecule activated water and an appropriate amount of deionized water. Dissolution, conversion and utilization of pesticide residues in vegetables can be effectivelyrealized, and the effect of self-cleaning of the pesticide residues is achieved.

The invention discloses a new application of the plant magnesium chelatase H subunit. The new application is the application of plant magnesium chelatase H subunit in regulating stress resistance of plants, regulating seed germination and regulating plant growth and development. The invention not only has great theoretical significance for plant life science, but also has important application value for crop genetic improvement and agricultural development, especially has important practical value in improving the drought resistance of grain and economic crops.

The invention provides a water-soluble fertilizer for improving apple quality and a preparation method and application thereof, and relates to the technical field of fertilizers. The water-soluble fertilizer comprises the following components in parts by mass: 40-50 parts of potassium pyrophosphate, 10-20 parts of urea, 1-3 parts of ammonium nitrate, 7-9 parts of cane sugar, 1-3 parts of ethephon, 0.5-1.5 parts of abscisic acid, 2-4 parts of chelated iron, 1-3 parts of chelated zinc, 2-4 parts of chelated copper, 2-4 parts of chelated manganese, 1-3 parts of chelated magnesium, 3-5 parts of boric acid, 3-5 parts of potassium molybdate and 7-9 parts of sodium hyaluronate. The water-soluble fertilizer prepared according to the preparation method can improve the coloring degree of apples, increase the yield of the apples and improve the flavor of the apples.

The invention discloses the application of the polysaccharide of Stropharia grandis, a resistance inducer and a grape cultivation method. The present invention finds through research that the resistance-inducing agent prepared from Stropharia stropharcii polysaccharides is used in viticulture, which can improve the disease resistance of grape plants and reduce the use of pesticides. It not only has good control effects on grape downy mildew and grape anthracnose, but also It can improve the yield and quality of grape fruit, and it is safe to grapes under the treatment concentration. The Stropharia polysaccharide of the present invention can be made into a resistance inducer alone, and can also be compounded with other ingredients, such as amino oligosaccharins, amino acid chelated calcium, and amino acid chelated magnesium. After compounding, the induction can be further improved. The preventive effect of the agent.

The invention relates to a production process of high-activity small peptide chelated magnesium. The production process mainly comprises the following steps: blood cell liquid preparation, hemolysis,enzymolysis, centrifugation, ultrafiltration, chelation and spray drying, thus obtaining the small peptide chelated magnesium. According to the invention, pig blood which is low in price and wide in source serves as a peptide source, inorganic magnesium salt serves as a magnesium source, the magnesium element and the protein peptide are chelated, the technological process is simple, the cost is low, and the production process is suitable for large-scale industrial production. The prepared product is high in small molecular peptide content and high in magnesium ion chelating rate, and is a novel efficient feed additive.

The invention provides water soluble fertilizer capable of improving grape sweetness and an applying method. The water soluble fertilizer is composed of, by mass, 10-50 parts of urea, 10-300 parts of monopotassium phosphate, 10-700 parts of potassium nitrate, 1-10 parts of calcium chelate, 1-10 parts of magnesium chelate, 1-5 parts of manganese chelate,1-7 parts of zinc chelate, 1-10 parts of polyborate, 1-2 parts of sodium molybdate, 1-3 parts of chitosan oligosaccharide, 1-10 parts of potassium alginate, 1-5 parts of brown algae polysaccharides and 1-3 parts of gaseous phase silica anticaking agents. The water soluble fertilizer can substantially increase the sugar content of grapes, improve grape sweetness, increase the sugar-acid ratio and increase nutritive value and commodity value of the table grapes.

The invention discloses a potassium fulvate chelating multivariate medium trace element soil improvement agent and a preparation process thereof. The process specifically comprises the steps of adding each component into a first-stage chelating reaction kettle, adjusting the moisture content of materials in the first-stage chelating reaction kettle to be 18-25%, and then sequentially performing a heating reaction by using fourth-stage chelating reaction kettles to obtain a final liquid product, wherein the prepared soil improvement agent comprises the following components in parts by weight: 15-30 parts of organic matter, 10-20 parts of zinc chelate, 10-20 parts of iron chelate, 10-30 parts of magnesium chelate, 1-5 parts of copper chelate, 1-5 parts of manganese chelate, 1-5 parts of molybdenum chelate, 2-3.5 parts of organic nitrogen, 2-3.5 parts of organic phosphorus and 2-3.5 parts of organic potassium. The preparation process disclosed by the invention can be used for performing continuous material feeding and continuous discharging production, and is high in chelating efficiency and short in time; a product has the effects of regulating the physical balance, chemical balance and biological balance of soil, and organically combines land use and land maintenance.

The invention discloses an amino-acid water-soluble fertilizer for castanea mollissima and a preparation method therefor. The amino-acid water-soluble fertilizer contains the ingredients: amino-acid mother liquor, citric acid, zinc sulfate, ferrous sulfate, magnesium sulfate, potassium dihydrogen phosphate, manganese sulfate, boric acid, urea, disodium octaborate tetrahydrate, peat, Avermectins, gibberellin, potassium polyacrylate, ammonium hydrogen carbonate, calcium superphosphate, calcium nitrate, ammonium molybdate, calcium amino-acid chelate, copper amino-acid chelate, magnesium amino-acid chelate and zinc amino acid chelate. The amino-acid water-soluble fertilizer contains complete macro-elements, medium elements and trace elements, contains 16 kinds of nutrient elements required by plants and 18 kinds of amino acids required by the plants, is rich and balanced in nutrition and can meet the requirements of each stage of a castanea mollissima growth process on nutrition, the number of shells of a single plant is increased, the fruit set percentage of castanea mollissima is increased, the weight of a single grain and the nut number of each shell are increased, and the content of starch, sugar and protein in castanea mollissima fruits can also be increased, so that the commodity rate of the castanea mollissima is increased, and the aims of increasing yield and income are achieved. The adverse resistance of the castanea mollissima can be enhanced.

The invention belongs to a functional urea for improving a nitrogen fertilizer utilization rate, a production apparatus and a production method. The functional urea is prepared from the following rawmaterials in parts by weight: 1-5 parts of a functional rare earth mineral powder, 1-5 parts of amino acid chelated trace elements, and 82-100 parts of a molten urea solution with a concentration of 99.5% or more, wherein the amino acid chelated trace elements comprise amino acid chelated calcium, amino acid chelated magnesium, amino acid chelated boron, amino acid chelated iron and amino acid chelated zinc, and a weight ratio of the amino acid chelated calcium to the amino acid chelated magnesium to the amino acid chelated boron to the amino acid chelated iron to the amino acid chelated zincis 1-2:1-2:1-2:1-2:1-2. The production apparatus has reasonable structural design, convenient operation, simple process, and low cost, a new functional urea complex can be formed by carrying out a chemical reaction of a powder and urea under the premise of preventing a urea melt liquid pipeline from blocking, and the functional urea has the advantages of significantly improving effects and yield.