2020results about "Liquid fertilisers" patented technology

Present invention teaches the method of using a keratin hydrolysis peptide (“KHP”) solution to improve the efficacy of fertilizer usage and absorption by wheat plants. By selectively choosing specific weights of feathers and water, and treating the mixture to a high-temperature high-pressure hydrolysis process, the resulting solution is confirmed to contain at least 253 peptides and then infused to the fertilized soil in which the wheat seeds are planted and grown. Optionally, the KHP solution can be diluted by water, as disclosed in the specification, for applying to the soil around the wheat plants.

Present invention teaches the method of using a keratin hydrolysis peptide (“KHP”) solution to improve the growth of wheat under low temperature conditions. By selectively choosing specific weights of feathers and water, and treating the mixture to a high-temperature high-pressure hydrolysis process, the resulting solution is confirmed to contain at least 253 peptides and then infused to the soil containing the wheat seeds. Optionally, the KHP solution can be diluted by water, as disclosed in the specification, for applying to the soil containing the wheat seeds.

The invention relates to the technical field of organic fertilizers, and discloses an agricultural waste two-stage fermentation bio-organic fertilizer and a preparation method thereof.The bio-organic fertilizer comprises 70%-80% of a mixture of livestock and poultry manure and straw subjected to anaerobic fermentation and aerobic fermentation two-stage treatment, 5%-10% of auxiliary organic matter, 3%-5% of a soil improvement material, 2%-4% of a functional additive and 1%-3% of a microbial preparation. The preparation method comprises the following steps: mixing the livestock and poultry manure and the straw according to a carbon-nitrogen ratio of 30: 1, and performing pretreatment; carrying out anaerobic fermentation for 7 days, and collecting biogas; performing solid-liquid separation to obtain a solid material and biogas slurry; concentrating the biogas slurry to prepare a leaf fertilizer; adding a microbial preparation into the solid material, and carrying out aerobic fermentation for 10-15 days; after fermentation is completed, drying, functional component adding, granulating, screening and packaging are conducted, a finished product is obtained, collaborative integration of anaerobic-aerobic fermentation and full-quantitative utilization of agricultural waste are achieved, and the method has the remarkable advantages of being short in fermentation period, small in nutrient loss, high in functionality and the like.

The invention relates to the technical field of organic fertilizers and planting of watermelons and muskmelons, and provides a special fertilizer for milk irrigated watermelons and muskmelons and a double-stubble planting method for sweetness enhancement of milk irrigated watermelons and muskmelons. The special fertilizer for the milk irrigated watermelons and muskmelons comprises black goat manure, sophora alopecuroide, sesame seed meal, bran, organic fresh milk, brown sugar and zymophyte. The black goat manure is pulverized into powder by a pulverizer, the sophora alopecuroide is pulverizedinto 1 cm to 2 cm, and the ratio of the black goat manure, the sophora alopecuroide, the sesame seed meal, the brans, the organic fresh milk, the brown sugar and the zymophyte is 2700-3200: 80: 50: 150: 5: 1. The double-stubble planting method for sweetness enhancement of the milk irrigated watermelons and muskmelons comprises the following steps: selection of a nursery seedling plate and soil, cleaning and germination accelerating of seeds, soil preparation, transplanting, irrigation, topdressing, shaping and forking of watermelon and muskmelon vines and fruit bearing of the watermelons and the muskmelons. The problems that in an existing watermelon and muskmelon planting process, soil nutrients are damaged due to the fact that chemical fertilizers are used for a long time, and the sweetness of melons is reduced are solved.

The invention discloses a production method of distiller's grain fermentation liquid fertilizer specially applied to roxburgh rose. The distiller's grain fermentation liquid fertilizer is prepared bythe step of evenly mixing 50 to 80 parts of distiller's grain fermentation extracting solution, 0.5 to 1 part of microelement, 5 to 10 parts of seaweed meal, 5 to 10 parts of natural active organism,2 to 5 parts of potassium bicarbonate, 2 to 5 parts of natural active organism and 2 to 5 parts of natural surface active agent. A preparation method of the distiller's grain fermentation extracting solution comprises the steps: evenly stirring 50 to 80 parts of distiller's grain, 50 to 150 parts of rice washing water, 1 to 2 parts of EM microflora fermentation liquid and 0.5 to 1 part of sugar, performing composting fermentation at the room temperature to obtain a distiller's grain fermentation material, stirring and extracting through a sodium carbonate water solution, filtering and performing evaporation and condensation on obtained filtrate until the density is 1.1 to 1.2 to obtain distiller's grain fermentation extracting solution. The distiller's grain fermentation liquid fertilizerdisclosed by the invention has a good use effect, meanwhile can effectively prevent pest and disease damage to the roxburgh rose and is high-efficiency environment-friendly liquid fertilizer.

Present invention teaches the method of using a keratin hydrolysis peptide (“KHP”) solution to improve the growth of tomato under low light conditions. By selectively choosing specific weights of feathers and water, and treating the mixture to a high-temperature high-pressure hydrolysis process, the resulting solution is confirmed to contain at least 253 peptides and then infused to the soil containing the tomato seeds or young seedlings. Optionally, the KHP solution can be diluted by water at different ratios as disclosed in the specification.

The invention discloses a potassium fulvate chelated macroelement water-soluble fertilizer with stress resistance and growth promotion functions, and relates to the technical field of water-soluble fertilizers, the potassium fulvate chelated macroelement water-soluble fertilizer comprises the following raw materials by weight: 167-210 parts of mineral source potassium fulvate, 450-460 parts of potassium nitrate, 300-310 parts of urea, 150-160 parts of potassium dihydrogen phosphate, 30-40 parts of potassium sulfate, 15-25 parts of EDTA-disodium, and 5-15 parts of citric acid. 0.5 to 1.5 parts of brassinolide and 4 to 6 parts of polyaspartic acid; according to the potassium fulvate chelated macroelement water-soluble fertilizer with the stress-resistant and growth-promoting functions, through chelation cooperation of potassium fulvate and nitrogen, phosphorus and potassium, the solubility of the chelated phosphorus element in water is increased, and the chelated phosphorus element can be more uniformly distributed in soil; by adopting an EDTA-disodium and citric acid composite chelating system, volatilization and loss of nitrogen elements are reduced, the problem of precipitation of calcium, magnesium and phosphorus is solved, and the soil conditioner is suitable for hard water areas and especially has outstanding performance in saline-alkali soil and arid areas.

The invention provides a method for preparing carbon quantum dot reinforced subcritical artificial humic acid and applying the carbon quantum dot reinforced subcritical artificial humic acid to a rice field, which comprises the following steps: collecting organic wastes, and drying, grinding and sieving the organic wastes to obtain pretreated raw materials; the preparation method comprises the following steps: mixing pretreated raw materials with water, reacting in a hydrothermal carbonization system at 200-280 DEG C for 1-3 hours, modifying through acid-base pretreatment, adjusting a reaction medium or an additive, and naturally cooling to obtain a natural substance subjected to hydrothermal carbonization; carrying out solid-liquid separation on the natural substance subjected to hydrothermal carbonization by using a 100-mesh coarse filter screen to obtain solid-phase hydrothermal carbon and liquid-phase artificial humic acid; carrying out purification treatment on the liquid-phase artificial humic acid for 48 hours by using a dialysis bag to obtain carbon quantum dots and characterizing the carbon quantum dots; the carbon quantum dot reinforced subcritical artificial humic acid is applied to a rice field, and is additionally applied in a fertilization period. Compared with a traditional composting technology, the scheme has the advantages that the carbon conversion rate is increased by 2-3 times, the soil fertility can be improved, and the rice yield is increased.

The invention relates to the technical field of fertilizers, in particular to an environment-friendly water-soluble fertilizer containing a seaweed extract and polyglutamic acid. The water-soluble fertilizer is prepared by preparing seaweed oligosaccharide and double-grafted poly-L-gamma-sodium glutamate and compounding and complexing the seaweed oligosaccharide and the double-grafted poly-L-gamma-sodium glutamate, has the characteristics of low salting-out, high stability, no precipitation, good slow release performance and the like, and can continuously release nutrients and keep a solution clear and transparent under a low-salt condition; and because the polyglutamic acid and seaweed extract compound drip irrigation agent has the chelation and water retention characteristics of the polyglutamic acid and the natural growth promoting effect of the seaweed extract, the crop rhizosphere nutrient absorption efficiency and stress resistance are remarkably improved, the compound drip irrigation agent is suitable for drip irrigation and water and fertilizer integrated application of greenhouse vegetables, fruit trees and field crops, and the comprehensive effects of high efficiency, low salt load and environment friendliness are achieved.

The invention discloses a method for preparing a liquid fertilizer and co-producing a medium element fertilizer by using raffinate acid, and relates to the technical field of preparation of fertilizers by using raffinate acid. Comprising the following steps: S1, carrying out filter pressing on raffinate acid: adding a modified filter aid into the raffinate acid, uniformly mixing, pumping into a plate-and-frame filter press, and carrying out filter pressing to obtain a raffinate acid clear liquid and filter residues; s2, preparing a liquid fertilizer from the raffinate acid clear liquid: sequentially adding desalted water, nutrient elements, synergistic factors and the raffinate acid clear liquid into a reaction kettle, and completely dissolving to obtain an acidic liquid fertilizer; s3, preparing the medium element fertilizer from the filter residues: uniformly stirring and mixing the filter residues, phosphate tailings and a modified synergistic granulating agent, granulating, drying, screening and cooling to obtain the medium element fertilizer. The technological process is simple and easy to operate, raffinate acid is only subjected to filter pressing, the treatment cost is low, the fertilizer efficiency is improved through synergistic factors in the acid liquid fertilizer, the particle strength is improved after filter residues are granulated through the modified synergistic granulating agent, and meanwhile the medium element fertilizer is endowed with the biological stimulation effect.

The invention relates to the technical field of pineapple planting, in particular to a management and control method for reducing malformed fruits caused by non-development of pineapple kernels. The management and control method comprises the steps of regulating and controlling nutrition before a flowering period, optimizing a microenvironment in a flowering period, strengthening management in a young fruit period and comprehensively preventing and controlling diseases and insect pests. The operation of regulating and controlling the nutrition before the flowering stage comprises the following steps: supplying a water-dispersible slow-release fertilizer by adopting a drip irrigation system from a seedling stage to a flowering accelerating stage; the mass ratio of nitrogen to phosphorus to potassium in the water dispersible slow-release fertilizer is 1: (1.1-1.3): (1.4-1.6); the operation of optimizing the microenvironment in the flower forcing period comprises the following steps: forcing flowers in cloudy days at the temperature of 18-25 DEG C or at dusk; after the inflorescence develops, a mixed solution of ethephon and gibberellic acid is adopted for core filling; the operation of strengthening young fruit stage management comprises the following steps: in a young fruit stage, spraying a mixed aqueous solution of sugar alcohol calcium and monopotassium phosphate to leaf surfaces; the operation of comprehensively preventing and controlling diseases and insect pests comprises the following steps: covering with breathable insect-preventing fruit bags 20 days after flowers wither, and releasing natural enemies to control the cardinal number of pests.

The present invention relates to a crop nutrition and fortifying composition comprising: i. Elemental sulfur; ii. One or more water insoluble or water soluble magnesium salts or derivatives or mixtures thereof; iii. One or more water-insoluble or water-soluble potash fertilizers or salts or derivatives or mixtures thereof; iv. One or more water insoluble or water soluble iron salts or derivatives or mixtures thereof; v. One or more water insoluble or water soluble zinc salts or derivatives or mixtures thereof; vi. One or more water-insoluble or water-soluble boron salts or derivatives or mixtures thereof; vii. At least one trace element selected from the group consisting of water-insoluble or water-soluble vanadium salts or derivatives or mixtures thereof and water-insoluble or water-soluble selenium salts or derivatives or mixtures thereof; and viii. One or more excipients wherein the composition comprises microparticles having a size in the range of 0.1 to 50 microns, and wherein the total content of the water-soluble salts, derivatives or mixtures in the composition does not exceed 80% of the total weight of the composition. The invention also relates to a method for preparing the crop nutrition and fortifying composition and a method for treating a plant, a seed, a crop, plant propagation material, a locus, parts thereof or soil with the crop nutrition and fortifying composition.

The invention relates to the technical field of agricultural fertilizers, and particularly discloses a polypeptide fish protein flushing water-soluble fertilizer and a preparation method thereof, the water-soluble fertilizer is prepared from the following raw materials: unrotten small fish or fish sewer, edible cane sugar or brown granulated sugar, a self-prepared fish protein enzymolysis agent, a self-prepared fish protein anaerobic fermentation inoculant and water; the preparation method comprises an enzymolysis stage and a fermentation stage. The compound fertilizer can be used as a nitrogen fertilizer to replace a traditional chemical nitrogen fertilizer, or is matched with a trace element fertilizer in a compound fertilizer to be used in crop planting; the water-soluble fertilizer has the beneficial effects that the water-soluble fertilizer can supplement soil protein amino acid fertilizer nutrition and increase the content of nutritional ingredients in crops, fermented polypeptide micromolecule sugar can be directly absorbed by the crops to improve the taste, ecological organic planting is realized, meanwhile, the planting cost is reduced, and the water-soluble fertilizer is suitable for fruit and vegetable planting families, farms, picking gardens, greenhouse farmers and the like, is simple and easy to operate, and is suitable for popularization and application. Raw materials are easy to collect, low in cost and obvious in effect.

The invention provides brevibacillus laterosporus LY15-1 and application of the brevibacillus laterosporus LY15-1, the brevibacillus laterosporus LY15-1 is preserved in China General Microbiological Culture Collection Center on February 8, 2025, and the preservation number of the brevibacillus laterosporus LY15-1 is CGMCC No. 33504. The brevibacillus laterosporus disclosed by the invention has excellent effects of promoting growth and preventing and treating root rot at the same time.

The invention discloses a method for preparing a liquid fertilizer and improving crop yield by using tylosin waste liquid, and belongs to the technical field of agricultural waste resource utilization, and the method comprises the following steps: S1, preparing a novel liquid fertilizer: mixing the tylosin waste liquid with an antibiotic degradation agent for reaction, centrifuging, and collecting supernatant; adding nutrient substances and a mixed bacterial agent into the centrifugate for fermentation treatment, and filtering to obtain filtrate, namely the novel liquid fertilizer; s2, taking crop seeds, and soaking the crop seeds in a soaking solution before planting; s3, in the seed bud stage and the seedling stage, leaf surface spraying is conducted; wherein the antibiotic degradation agent is prepared by reacting modified silicon dioxide with sulfhydrylated sodium carboxymethyl cellulose. According to the method, resource utilization of the tylosin waste liquid is achieved, environmental pollution and use of chemical fertilizers are reduced, the agricultural production cost is reduced, and an effective way is provided for agricultural sustainable development.

The invention relates to the technical field of agriculture, in particular to a plant nutrient solution for saline-alkali soil improvement and a preparation method thereof. The invention relates to a preparation method of a plant nutrient solution for improving saline-alkali soil. The preparation method comprises the following steps: preparing NO3-intercalated layered double hydroxides and acid modified calcium-based montmorillonite; preparing humic acid chelated calcium magnesium powder; preparing a binary compound; and preparing the plant nutrient solution. The preparation method comprises the following steps: preparing NO3-intercalated layered double hydroxides from calcium nitrate tetrahydrate and aluminum nitrate nonahydrate, carrying out acid modification on calcium-based montmorillonite by using dilute sulphuric acid, purifying humic acid, and mixing with calcium chloride and magnesium chloride hexahydrate to prepare humic acid chelated calcium magnesium powder. Finally, the three components are added into pig excrement fermentation liquor to prepare a plant nutrient solution, an adsorption-replacement-leaching closed loop can be formed, the desalination and alkali reduction efficiency is remarkably improved, the soil structure is improved, the effect of synergistically improving the saline-alkali soil is achieved, and therefore plant growth is promoted.

The invention discloses a special fertilizer composition for high-yield cultivation of sugarcane, and belongs to the technical field of sugarcane planting. Comprising a disease-resistant fertilizer and an insect-resistant fertilizer; wherein the disease-resistant fertilizer comprises the following raw materials in parts by mass: 50 parts of diatomite, 5-10 parts of biomass charcoal, 1-2 parts of a compound microbial agent, 150-170 parts of an organic fertilizer and 50-60 parts of an inorganic fertilizer; wherein the compound microorganism bacterium agent comprises a bacillus subtilis bacterium agent, a trichoderma harzianum bacterium agent, a trichoderma viride bacterium agent and a paecilomyces lilacinus bacterium agent; the insect prevention fertilizer comprises beauveria bassiana suspension and matrine in a volume ratio of (3.5-4.5): 1. According to the fertilizer composition special for high-yield cultivation of sugarcane, the synergistic effect of microorganisms is utilized, the broad-spectrum inhibition effect on microorganisms in sugarcane continuous cropping disease soil can be achieved, the kieselguhr and the biomass charcoal cooperate to form a porous substance, nutrient elements are adsorbed in pores, the slow-release effect is improved, the fertilizer efficiency is prolonged, and the effect is good. Moreover, the soil structure can be improved, and the disease resistance of the sugarcane during continuous cropping is greatly improved through the synergistic interaction with the microbial complex microbial inoculants.

The invention relates to the technical field of suspending agent preparation, and discloses a macroelement water-soluble fertilizer suspending agent, which comprises macroelements, medium trace elements, a suspending agent and an auxiliary agent, and a preparation method of the macroelement water-soluble fertilizer suspending agent comprises the following steps of: preparing the macroelement water-soluble fertilizer suspending agent; the preparation method comprises the following steps: S1, raw material pretreatment, S2, macroelement dissolution, S3, medium trace element addition, S4, suspending agent and auxiliary agent addition, S5, fine treatment, and S6, packaging and storage, the stability of the suspending agent is significantly enhanced: a more stable suspension system is constructed by precisely adjusting the ratio of xanthan gum to the sodium carboxymethyl cellulose suspending agent, and the unique component proportion enables the fertilizer to have a better effect after the fertilizer is stored for 6 months. The nutrient precipitation rate can still be kept below 5%, the uniformity of the fertilizer in the storage and transportation process is effectively guaranteed, farmers do not need to worry about uneven fertilization caused by nutrient precipitation in the application process, it is guaranteed that crops can continuously and evenly absorb nutrients, and healthy growth is promoted.

The present invention belongs to the technical field of biomass resource utilization and microbial fertilizers, and specifically relates to a fertilizer based on oil-tea camellia cattail, a preparation method and its application. The fertilizer described in the present invention is prepared by a collaborative fermentation process of Aspergillus niger, Phanerochaete chrysosporium and Bacillus subtilis. The obtained fermentation product is separated into solid and liquid to obtain a solid, the solid being a solid fertilizer, and the liquid being a foliar fertilizer after post-treatment. Both can be used for the cultivation of crops such as tangerines and oil-tea camellias. Based on the microbial collaborative fermentation process, the content of anti-nutritional factors tannin and tea saponin in the obtained solid fertilizer is significantly reduced, which is less than 1.8 g / kg and 0.1% respectively on a dry basis, while maintaining a seed germination index higher than 95%. According to a planting comparative test, the average yield per mu of oil-tea camellias using the solid fertilizer and liquid fertilizer obtained in this application increased by 12%. The average yield per mu of tangerines increased by about 11%, and the sugar, vitamin C, and trace element contents in tangerines were higher than those using traditional fertilizers.

The invention relates to a rapid production method of bamboo reed seedlings based on an aerial fog cutting rooting induction system, belongs to the technical field of energy plant seedling culture, and solves the technical problems that the production quantity of the bamboo reed seedlings cannot meet the requirement and the quality of the seedlings is uneven, the rapid production method comprises the following steps: S1, selecting high-quality bamboo reed stalks, and cutting after cutting; s2, preparing a rooting solution and a bamboo reed enzyme nutrient solution; s3, atomizing and spraying a rooting solution, and inducing the stem sections to root; s4, spraying an arundo donax enzyme nutrient solution, and inducing the stem sections to germinate; s5, root growth monitoring of the seedlings. According to the method, the seedling raising period is effectively shortened, the seedling quality is improved, the rooting period is about 15 days, the cultivated bamboo reed seedlings are similar in individual size, and the method is an industrial seedling raising method for the bamboo reed suitable for saline-alkali soil improvement, marginal land utilization and heavy metal contaminated soil remediation and treatment.

The invention discloses a novel bradyrhizobium strain SBM1 as well as a preparation and application thereof, and belongs to the technical field of microorganisms. The novel bradyrhizobium strain SBM1 disclosed by the invention is preserved in the China General Microbiological Culture Collection Center (CGMCC), and the preservation number is CGMCC No.29121. The strain has good tolerance to herbicides, bactericides and insecticides, and is high in nodulation and nitrogen fixation capacity, wide in symbiotic spectrum and remarkable in nitrogen-saving and high-yield-promoting capacity. Under the field planting condition that the application amount of nitrogen fertilizer is reduced by 50%, the strain can remarkably improve the nitrogen fixation and growth performance of crops, so that a strain source is provided for obtaining a rhizobium inoculant suitable for planting various varieties of peanuts, the application amount of the nitrogen fertilizer is reduced, normal implementation of crop pesticides is guaranteed, and the economic benefit is increased. The important significance is realized on the increase of the crop yield.

The invention relates to the technical field of agricultural fertilizer preparation, and discloses a preparation method of a water-soluble fertilizer rich in various active amino acids, which comprises the following steps: S1, preparing an amino acid solution: dissolving various free amino acids or polypeptides in a buffer solution to form an amino acid precursor liquid; s2, constructing a nutrition core layer: adding one or more types of soluble trace element salts and a gelation auxiliary agent into the amino acid precursor liquid to form gelatinous particles; s3, forming an intermediate response layer: coating the core particles with chitosan and phospholipid to form a bimolecular membrane structure. The stability of the particle structure is improved through low-temperature crosslinking and bi-component gelation, and quick response and continuous controlled release in a weak acid environment are realized by combining an intermediate response membrane and an outer controlled release shell layer; by adopting a structure-function integrated design, the suspension property and the dispersity are remarkably improved, and the multi-crop and multi-period precise fertilization requirements are met.

An improved solvent system for the formulation and application of N-alkyl thiophosphoric triamide urease inhibitors. These formulations provide safety and performance benefits relative to existing alternatives and enable storage, transport and subsequent coating or blending with urea based or organic based fertilizers. These formulations are comprised primarily of environmentally friendly aprotic and protic solvents (particularly dimethyl sulfoxide and alcohols / polyols) to stabilize the urease inhibitor.

The invention relates to a method for improving low-temperature weak-light resistance of pepper seedlings. NO-containing substances are added in the cultivation process. According to the method, the compound solution of sodium nitroprusside and urea is sprayed in the three-leaf and one-core period of the pepper, the low-temperature and weak-light resistance of the pepper seedlings is remarkably improved, the adverse effect of low-temperature and weak-light stress on the pepper seedlings is overcome, the normal growth state of the pepper seedlings is achieved, and the method is easy to operate, suitable for being applied to production and high in economic benefit. And the method has a relatively high application value.

The invention discloses an element liquid fertilizer for promoting nutrient absorption and a preparation method thereof, and belongs to the technical field of fertilizers. Comprising monoammonium phosphate; urea; potassium nitrate; cake fertilizer leach liquor; trace elements; a wetting agent; a stabilizer; a biological agent; an adsorbent; deionized water; the preparation method of the adsorbent comprises the following steps: A1, taking loofah sponge powder, and removing lignin and hemicellulose to obtain loofah sponge cellulose powder; a2, mixing the loofah sponge cellulose powder, deionized water, a chitosan solution and plant ash, mechanically pulping uniformly, performing vacuum freeze-drying treatment to form holes, crushing and grinding to obtain the adsorbent, root development can be promoted, elongation and thickening of stems are promoted, the photosynthetic rate of plants is increased, and the crop yield is increased.

The invention relates to the technical field of water-soluble fertilizers, in particular to an amino acid water-soluble fertilizer and a preparation method thereof. The amino acid water-soluble fertilizer is prepared from the following raw materials in parts by weight: 60-80 parts of an amino acid solution, 20-30 parts of a nitrogen-phosphorus-potassium fertilizer, 6-10 parts of filler, 4-6 parts of a fermentation material, 2-4 parts of brown sugar, 2-4 parts of ethylenediaminetetraacetic acid ferric sodium salt and 0.6-0.8 part of a microbial agent. According to the amino acid water-soluble fertilizer, the filler is added in the preparation process of the amino acid water-soluble fertilizer, after balsa wood is soaked with sodium hydroxide, lignin is partially degraded, a honeycomb-shaped porous structure is formed, the purpose of increasing the specific surface area is achieved, and the effect of adsorbing nitrogen and potassium ions can be achieved; and after the microbial inoculum is inoculated, mycelia are planted in pores of the filler and secrete exopolysaccharide to wrap fertilizer particles, so that the effect of reducing leaching loss is achieved, the retention time of the fertilizer in soil is delayed, and the loss rate of the fertilizer is effectively reduced.

The invention belongs to the field of fertilizers, and particularly relates to a foliar fertilizer with high amino acid synthesis efficiency and a preparation method thereof.The preparation method comprises the steps that spermidine is taken to be subjected to formic acid esterification modification, and formic acid esterification spermidine is obtained; the preparation method comprises the following steps: hydrolyzing 2, 4-epibrassinolide to obtain carboxylated brassinolide; under the action of Tween, carboxylated brassinolide and formic acid esterified spermidine are combined to form a fertilizer base full of emulsified liquid drops; and adding other nutrients to obtain the foliar fertilizer. The leaf fertilizer for increasing the amino acid content of rice can increase the content of amino acids, especially lysine, in grains on the premise of increasing the yield of rice, and nitrogen absorption and utilization of the rice grains are improved.

The invention belongs to the technical field of environment, and relates to a method for preparing a fulvic acid-rich forestry liquid fertilizer by quickly decomposing municipal sludge, which comprises the following steps: carrying out hydrodynamic cavitation treatment on municipal sludge, adding a reaction reagent into the municipal sludge to carry out Fenton-like reaction, adding an adsorbent into the municipal sludge to carry out adsorption treatment, and carrying out solid-liquid separation to obtain the fulvic acid-rich forestry liquid fertilizer. The fulvic acid type forestry liquid fertilizer is obtained. The hydraulic cavitation treatment is combined with the Fenton-like reaction and the adsorption treatment, so that the problems of high heavy metal activation risk and serious ammonia nitrogen loss in the traditional process for preparing the fulvic acid-rich fertilizer from the sludge are effectively solved, the rapid decomposition of the municipal sludge is realized, and the yield of the fertilizer is improved. The fulvic acid-rich forestry liquid fertilizer with the functions of improving soil, promoting plant growth and the like is prepared, and the purpose of efficient, environment-friendly and low-cost sludge resource utilization is achieved.

The invention relates to the technical field of agriculture, in particular to a preparation method and an application method of a zinc-rich cadmium-reducing yield-increasing foliar fertilizer. The specific technical scheme is as follows: the zinc-rich cadmium-reducing yield-increasing foliar fertilizer is prepared from the following components in percentage by mass: 20 to 30 percent of porous chitosan, 30 to 40 percent of L-malic acid and 40 to 50 percent of nano zinc oxide. The technical problem that in the prior art, the zinc content of rice cannot be increased, meanwhile, the rice yield cannot be increased, and the cadmium content of rice cannot be reduced is solved.

The invention relates to a low-temperature preparation method of a high-activity chelated zinc fertilizer, and belongs to the technical field of fertilizer chemical industry. Aiming at the problems of chelate decomposition and high energy consumption caused by an existing high-temperature process, ethylene diamine tetraacetic acid is added step by step in a low-temperature environment of 35-45 DEG C: firstly, an initial chelating solution is formed by adding 0.8-1.0 time of theoretical chelating molar weight, and then a sodium hydroxide solution is dropwise added to control the pH to be 3.5-4.5 within 60-120 minutes and is stable; and then supplementing ethylenediaminetetraacetic acid which is 0.1-0.2 time of the theoretical amount, reacting for 60-120 minutes to achieve chelation balance, and finally stirring, aging and naturally cooling. The method obviously improves the chelating efficiency and the product stability, reduces the energy consumption, and is used for preparing the efficient and stable liquid zinc fertilizer.