323 results about "Nutrient absorption" patented technology

The invention relates to the technical field of intelligent control, in particular to a monopotassium phosphate intelligent control method and system.The method comprises the following steps that rhizosphere phosphorus and potassium concentration changes are obtained, whether the rhizosphere phosphorus and potassium concentration changes are in a critical rate interval or not is judged, an effective absorption time period identifier is generated, and an organ amplification ratio is analyzed to judge a cooperation period; and extracting a stalk concentration ratio, comparing the stalk concentration ratio with a reference interval to generate an application inhibition identifier, fusing information to judge a fertilization window, adjusting the concentration according to the root hair amplification and the water consumption rate, and generating a control instruction set. According to the method, the effective time period of phosphorus and potassium nutrient absorption of the crops is determined through crop rhizosphere phosphorus and potassium ion concentration difference calculation and average treatment, the objective interval of crop nutrient absorption rate indexes is defined, blind fertilization is avoided, the pertinence and accuracy of nutrient absorption and utilization of the crops are enhanced, the excessive application state of nutrient elements is dynamically identified, and the crop quality is improved. The risk of excessive nutrients caused by nutrient enrichment of crops is prevented, and resource waste and environmental burden are effectively reduced.

The present disclosure provides compositions, kits, and systems comprising engineered bacteria and agricultural biologics, and methods of using the same to treat plants and improve one or more plant beneficial traits, such as plant yield, nutrient uptake, and resistance to abiotic or biological stress. Using the compositions, kits, and systems disclosed herein can further 5 reduce fertilizer usage. The present disclosure also proposes methods of treating plants using the engineered bacteria with agricultural biologics.

The invention discloses a fertilization recommendation method combined with a rice seedling raising fertilizer carrying technology in the technical field of agricultural production. The fertilization recommendation method comprises the following steps: S1, acquiring geology and seedling raising states; s2, presetting rice growth requirements; s3, calculating to obtain an additional nutrient amount; s4, dividing the growth cycle of the rice; s5, recommending the fertilization amount according to stages; according to the method, nutrient supply of seedling raising fertilizer is brought into a whole-growth-period fertilization plan, and accurate matching is achieved; on the premise that the yield is not affected, the fertilizing amount in the early and whole growth periods of rice is remarkably reduced, and the fertilizer utilization rate is increased; through dynamic matching of the early-stage fertilizer loading and supplying amount and the middle and later-stage fertilizer needing amount, resource waste caused by excessive fertilization is avoided, and the fertilizer cost is reduced; the nutrient proportion is scientifically distributed according to the nutrient absorption efficiency of each stage, and the fertilizer utilization rate is increased; the final yield can be improved; soil fertility indexes and historical data are combined, the profit and loss trend of soil nutrients is recognized, and cyclic utilization of the soil nutrients is achieved through dynamic matching of the sustained and controlled release fertilizer and the organic fertilizer.

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 microbial agent for improving the yield and quality of strawberries and a preparation method and application thereof, and belongs to the technical field of microorganisms. The microbial agent comprises the following raw materials in parts by weight: 40-50 parts of a compound microbial agent, 0.3-0.5 part of xanthan gum, 1.5-2 parts of glycerol, 4-5 parts of a citric acid-sodium citrate buffer solution, 1-1.5 parts of potassium humate, 0.3-0.5 part of monopotassium phosphate, 0.2-0.3 part of chelated calcium magnesium and the balance of water, wherein the total parts by weight of the raw materials are 100; the compound microbial agent is prepared from arthrobacter Xinjiang, linear Prussella bursa-pastoris and bacillus coagulans. The microbial agent disclosed by the invention can be used for effectively preventing and treating strawberry diseases, including root rot, fusarium wilt, gray mold and anthracnose; through the synergistic effects of hormone secretion, nutrient activation, disease inhibition and the like, the microbial agent comprehensively promotes root development and nutrient absorption of strawberry plants, promotes strawberry growth, remarkably improves the strawberry yield and fruit quality, and meanwhile remarkably reduces the strawberry storage rotting rate.

The invention relates to the field of compound fertilizer analysis, and discloses an analysis method and device for combining polyglutamic acid and a compound fertilizer, computing equipment and a storage medium, and the method comprises the following steps: determining a growth cycle and a critical period of crops of which a fertilization scheme needs to be analyzed; determining environment conditions and nutrient absorption characteristics of crop growth; determining types of fertilizer raw materials and fertilization modes according to environmental conditions and nutrient absorption characteristics; combined fertilization schemes corresponding to different growth cycles are generated according to fertilizer raw material types and fertilization modes; inputting the plurality of combined fertilization schemes into a first fertilizer effect prediction model to obtain evaluation results of the plurality of combined fertilization schemes; and determining an optimal combined fertilization scheme according to the evaluation results of the plurality of combined fertilization schemes. According to the application, a polyglutamic acid and compound fertilizer combination scheme is designed according to crop requirements, and then a scheme with an optimal crop growth effect is selected according to the evaluation model, so that crops can obtain required nutrients, and the production cost is reduced.

The invention discloses a fruit and vegetable nutrition dynamic monitoring and intelligent fertilizer supplementing system, belongs to the field of fruit and vegetable planting management systems, replaces a traditional manual observation or regular soil sampling detection mode, effectively avoids subjectivity and hysteresis of manual judgment, can reflect the current nutrition state of crops in real time, provides accurate data support for dynamic nutrition management, and improves the management efficiency. The problem that in the prior art, real-time management is difficult to achieve according to the current nutrition state of crops is solved, meanwhile, accurate matching of the fertilizer type, concentration and dosage with the crop growth stage and environmental conditions is achieved in the fertilizer supplementing process, a traditional one-step nutrition supply mode is avoided, the nutrient absorption efficiency is remarkably improved, and healthy growth of the crops is promoted.

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 provides infant rapid brewing rice flour based on enzymolysis and superfine water grinding and a preparation method thereof, and belongs to the technical field of food processing. Rice is subjected to raw material differential temperature pretreatment and multi-stage hydration pulping, and a stable three-dimensional microscopic network structure with starch particles as filler and soluble protein and colloid as a continuous phase is constructed; then, food-grade lactic acid bacteria pre-fermentation is combined with sequential action of various enzymes, and starch and protein are subjected to mild directional hydrolysis under the condition of simulating dynamic pH of gastrointestinal tract digestion, so that the nutritional and digestible infant healthy rice flour is prepared, and the problems that the rice flour is easy to agglomerate, non-uniform in dispersion and low in nutritional value during brewing are solved. The digestion and absorption efficiency of macromolecular nutrient components such as starch and protein is relatively low, and the nutrition and flavor of the product mainly depend on exogenous addition, so that the naturalness and functionality are insufficient. The rice flour disclosed by the invention has excellent reconstituability and nutrient absorption rate, and is suitable for being used as a healthy nutritional complementary food for infants of 6-36 months.

The invention belongs to the technical field of tree planting, and discloses an afforestation seedling raising device which comprises a base and further comprises a seedling raising assembly fixedly installed in the base and used for raising seedlings. The plastic film is placed at the top of the base, so that the plastic film forms the planting groove located in the cultivation pot, soil and the cultivation pot are separated through the plastic film, seeds can be placed in the soil of the groove for seedling raising, and after seedling raising of seedlings is completed, the plastic film is cut by means of a cutting tool such as an art knife or scissors. Each groove forms an independent individual, the seedlings in the cultivation pot can be taken out through the independent grooves formed by the plastic film, and the phenomenon that roots of the seedlings grow vigorously in the seedling cultivation process and are tightly attached to the inner walls of the seedling cultivation grooves, so that fibrous roots are broken due to excessive force in the taking-out process is avoided; the water and nutrient absorption capacity of seedling transplanting is improved, and the survival rate of seedlings is guaranteed.

The invention provides a temperature-increasing oxygen-increasing agent for waterlogging type medium and low yield fields and a preparation method of the temperature-increasing oxygen-increasing agent. The temperature-increasing oxygen-increasing agent is prepared from the following raw materials in parts by weight: 80 to 130 parts of tea seed cakes, 80 to 110 parts of aged chicken manure, 140 to 180 parts of straw powder, 7.7 to 10 parts of beneficial bacteria, 0.3 to 0.8 part of alginate oligosaccharide, 9.5 to 12 parts of silicon-calcium-magnesium ore powder, 200 to 220 parts of activated humic acid and 340 to 430 parts of calcium peroxide. The fertilizer has comprehensive nutrients, can effectively improve the utilization rate of the fertilizer, improve the soil structure and promote production and income increase, takes organic matters as a carrier, is added with a large amount of activated humic acid and silico-calcium-magnesium ore powder, has strong chelating ability, promotes the formation of soil aggregates and improves the absorption and utilization rate of plant nutrients, and has good application prospects through a unique coating technology. The active ingredients and the granulation rate of the product are effectively improved.

The invention relates to the technical field of health management, and relates to a feeding chewing monitoring method and system, and the method comprises the steps: obtaining an image of to-be-eaten food; based on the food image, physical attributes of food are determined through an analysis model, preset user personalized information is combined, a recommended chewing target containing recommended chewing times and recommended chewing quality threshold values is generated, and the recommended chewing quality threshold values comprise a myoelectric force threshold value and a breaking degree threshold value; the chewing action of the user is monitored in real time through an acquisition unit worn on the head and face of the user to obtain actual chewing data, and the actual chewing data comprises actual chewing times and actual chewing quality parameters; and comparing the actual chewing data with the recommended chewing target, and outputting instructive feedback information to the user based on a comparison result, the chewing process of the user is monitored through an intelligent means, and personalized chewing guidance is provided, so that the eating efficiency, nutrition absorption and oral health of the user are improved.

The invention discloses an AIoT water and fertilizer integrated regulation and control method and system based on a crop growth dynamic model, and relates to the technical field of water and fertilizer regulation and control, and the method comprises the steps: firstly obtaining multi-dimensional environment parameters and soil characteristics through an AIoT sensing network, and deeply analyzing a restriction mechanism of soil moisture on nutrient effectiveness based on the crop growth dynamic model; and quantifying the nutrient effectiveness coefficient. And then, inputting the coefficient into a water-fertilizer coupling prediction model, and dynamically deducing the actual nutrient absorption amount and the moisture evapotranspiration amount of the crop in a specific water-fertilizer interaction environment, so as to realize digital representation of the physiological demand. And further, in combination with future meteorological information and cost constraints, multi-target collaborative optimization is carried out by using a rolling time domain optimization algorithm, and an optimal regulation and control strategy considering growth requirements and economic benefits is generated and driven to be executed. In this way, quantitative and accurate regulation and control of the water and fertilizer synergistic effect can be achieved, and therefore the resource utilization efficiency and agricultural production economic benefits in the whole growth cycle of crops are greatly improved.

The invention relates to a random forest and model predictive control (RF-MPC) cooperation-based wheat water and fertilizer amount intelligent decision-making method and system, environmental data are collected in real time by deploying a sensor network module, and a multi-dimensional decision-making system comprising a crop growth stage model, a soil layered moisture dynamic model and a nutrient absorption efficiency prediction model is constructed. Wherein the random forest algorithm is used for predicting key environment parameters in the next eight days, and inputting a prediction result into the MPC controller; and the MPC controller dynamically solves an irrigation volume distribution scheme and an optimal ratio of nitrogen to phosphorus to potassium in the whole growth cycle through a rolling time domain optimization method based on 9 growth stages of wheat and terrain and illumination differences of an irrigation area. According to the system, by establishing a dynamic moisture balance equation of soil at different depths, accurate quantitative coupling of root system water absorption, irrigation supply and deep seepage is achieved; and the fertilization module dynamically optimizes the nitrogen-phosphorus-potassium ratio based on an irrigation event triggering mechanism, so that accurate matching of nutrient supply and demand is realized.

The invention discloses a polypeptide fertilizer beneficial to cold resistance of crops and a preparation method thereof, and belongs to the technical field of agricultural fertilizers, the fertilizer is prepared by taking livestock and poultry blood (preferably pig blood) as a raw material, preparing high iron protein peptide through a compound protease hydrolysis process, and matching with a trace element compound, humic acid and a carrier. The preparation process comprises the steps of enzymolysis preparation of the ferritin peptide, fertilizer mixing, granulation, drying and the like. The polypeptide fertilizer disclosed by the invention takes the high-iron protein peptide as a core, the contained small-molecular amino acid polypeptide can enhance the antioxidant enzyme activity of crops at low temperature and reduce malonaldehyde accumulation, the porphyrin iron can promote chlorophyll synthesis and energy metabolism, and the high-iron protein peptide and the porphyrin iron cooperate to remarkably improve the cold resistance of the crops. Meanwhile, by cooperating with trace elements and humic acid, the cold resistance is enhanced, nutrient absorption of crops is promoted, the yield and quality are improved, multiple effects of resisting cold, improving quality, increasing yield and the like are achieved, the raw materials are wide in source, the cost is low, the preparation process is simple, and large-scale production and application are facilitated.

Methylobacterium strains that enhance early growth of plants, improve propagation / transplant vigor, increase nutrient uptake, improve stand establishment, improve stress tolerance, and / or increase a plant's ability to utilize nutrients are provided herein. Also provided are methods to identify Methylobacterium strains that improve nitrogen use efficiency in various crop plants.

The invention provides crab feed capable of improving the quality of crab cream. The feed is prepared from the following raw materials in parts by weight: 15-25 parts of white fish meal, 10-15 parts of fermented soybean meal, 50-60 parts of squid visceral meal, 45-50 parts of krill meal, 25-30 parts of beer yeast, 200-220 parts of high gluten flour, 45-50 parts of wheat bran, 10-20 parts of soybean lecithin oil, 5-10 parts of a vitamin premix special for crabs and 5-10 parts of a mineral premix special for crabs. According to the crab feed capable of improving the quality of the crab cream, on the basis of ensuring the ingestion and intestinal health of crabs, conditions are created for efficient nutrient absorption and utilization, then gonad development and flavor substance accumulation are driven through key substances, meanwhile, a three-dimensional anti-oxidation and immune protection system runs through all the time, the body health is guaranteed, and the crab feed has the effects of improving the crab cream quality and improving the crab cream quality. The method has the advantages of simple operation, stable color and flavor of the crab cream, sufficient energy supply in the whole process, and synergistic operation of all the systems, so that the disease resistance and survival rate of crabs are improved, and the accumulated nutrient substances are efficiently converted into the plump degree, delicious flavor and attractive color of the crab cream.

The present invention relates to urease inhibitor compositions containing tert-butylhydroquinone and optionally an additive component to enhance the inhibitory properties of tert-butylhydroquinone. Further described are uses of these compositions in agriculture to increase nutrient uptake and inhibit urease enzyme activity.

The invention discloses an ecological restoration matrix for a mining area as well as a preparation method and application of the ecological restoration matrix. The ecological restoration matrix for the mining area comprises the following components in parts by weight: 30-50 parts of modified coal gangue, 20-35 parts of decomposed straws, 10-20 parts of bentonite, 8-15 parts of zeolite powder, 5-12 parts of charcoal, 0.5-2.0 parts of a compound microbial agent, 1-3 parts of a water-retaining agent and 0.3-1.0 part of an organic acid chelating agent. The invention further discloses a preparation method and application of the ecological restoration matrix for the mining area. The ecological restoration matrix for the mining area realizes balance of heavy metal passivation and plant nutrient absorption, unification of physical structure stability and water retention and air permeability, and coordination of rapid soil formation and long-term sustainability. The method is simple in process, low in cost and suitable for industrial application.

The invention discloses a preparation method of a recombinant lactic acid bacteria preparation for expressing antibacterial peptide and interleukin 22 (IL-22) and application of a composite microecological preparation composed of the antibacterial peptide and the interleukin 22 in prevention and treatment of animal bacterial infection diseases. The probiotic preparation provided by the invention comprises lactic acid bacteria, antibacterial peptide and interleukin, the recombinant lactic acid bacteria preparation can be taken orally without generating toxicity to an organism, and the recombinant lactic acid bacteria preparation can be colonized in intestinal tracts and secrete the antibacterial peptide and IL-22. The antibacterial peptide secreted by the recombinant lactic acid bacteria can punch bacterial cell membranes to cause bacterial death, does not cause generation of drug-resistant bacteria, and can reduce or replace the use of antibiotics; iL-22 secreted by the recombinant lactic acid bacteria can promote the repair of damaged tissues of intestinal tracts, activate the immune system of the organism and enhance the resistance; the probiotic effect of lactic acid bacteria can regulate the balance of intestinal flora of the organism, promote nutrient absorption and enhance the immunity of the organism. The preparation provided by the invention has the advantages of innovativeness, good safety, no toxic or side effect, simple administration mode, remarkable effect and the like, can effectively reduce the use of antibiotics, and provides a new solution for preventing and treating bacterial diseases in animal husbandry.

The invention discloses a polypeptide fertilizer for promoting plant growth and a preparation method thereof, and belongs to the technical field of agricultural fertilizers. The polypeptide fertilizer disclosed by the invention is prepared by taking livestock and poultry blood (preferably pig blood) as a raw material, preparing amino acid polypeptide through an enzyme hydrolysis process, and matching the amino acid polypeptide with a nitrogen-phosphorus-potassium compound fertilizer, a microelement chelate, humic acid, an auxiliary agent and micron-sized calcined attapulgite. The preparation process comprises the steps of enzymolysis preparation of amino acid polypeptide, fertilizer mixing, granulation and the like. The polypeptide fertilizer contains high-activity amino acid polypeptide and can promote plant root development, improve photosynthesis efficiency and nutrient absorption rate, enhance stress resistance and remarkably improve crop yield and quality. Compared with dressing of a traditional nitrogen-phosphorus-potassium compound fertilizer, the polypeptide fertilizer has the advantages that the yield per mu of potatoes can be increased by 32.8%; the commodity potato rate is increased by 42.1 percentage points; the vitamin C content of the potatoes is increased by 24.9%, the starch content is increased by 31.8%, the soluble sugar content is increased by 16.5%, and the nutrient content is obviously increased. Meanwhile, the raw materials are wide in source, low in cost, simple in preparation process and beneficial to large-scale production and popularization, the soil structure can be improved, and economic benefits and ecological benefits are achieved.

The invention discloses a method for preparing a special fertilizer for corn crops by cooperatively applying an organic fertilizer and an inorganic fertilizer, and relates to the technical field of agriculture. On the premise of considering the replacement ratio and the release rate of the organic fertilizer, the appropriate amount of the organic fertilizer is rapidly and accurately provided through key parameters such as nutrient absorption and yield reaction of the corn, and the nitrogen-phosphorus-potassium nutrient demand ratio and the application method of the special fertilizer for different growth stages of the corn are provided; the method is an organic-inorganic combined recommended fertilization method, can effectively improve the yield of corn crops, improve the soil fertility and realize a chemical fertilizer application reduction and efficiency improvement technology, and meanwhile, can provide technical support for fertilizer manufacturers to produce special organic-inorganic blended fertilizers special for corn crops.

The invention discloses an organic fertilizer which is prepared from the following raw materials in parts by weight: 30-60 parts of agricultural waste powder, 10-20 parts of mineral powder, 5-15 parts of animal and plant grease residues, 3-10 parts of a seaweed extract, 5-15 parts of humic acid, 1-5 parts of a microbial agent, 0.5-3 parts of a trace element additive and 2-8 parts of a natural adhesive. The problem that an existing organic fertilizer is single in nutrient element is solved, the organic fertilizer can provide macro and trace nutrients at the same time, the nutrient solubility is improved through the chelation of humic acid, and the nutrient absorption efficiency of crops is improved.

According to the invention, lactobacillus rhamnosus UP180 with relatively strong cellulase activity and lactobacillus paracasei ID001 with relatively strong protease activity are combined to prepare composite probiotic powder, the composite probiotic powder is used for jointly fermenting the endothelium corneum gigeriae galli formula, and meanwhile, a polypeptide capable of improving the digestive enzyme activity of Caco-2 cells is found from a fermentation product. The compound strain fermentation effectively decomposes macromolecular proteins in the endothelium corneum gigeriae galli formula and converts the macromolecular proteins into small molecular peptides, effective active ingredients in the formula are fully released, and the conversion effect is obviously superior to that of single strain fermentation. Besides, the endothelium corneum gigeriae galli composition leavening prepared by the invention can improve nutrient absorption of the rats by improving enzyme activity and metal ion chelation in intestinal tracts of the rats in the weaning period and promote growth of the rats in the weaning period, and has a potential application prospect in the field of nutrient absorption of children.

This invention discloses a reconstituted rice made from leafy greens and its preparation method. The method involves mixing brown rice flour pretreated with leafy green filtrate with leafy green residue obtained by treatment with sodium hydroxide and alkaline protease. The mixture is then extruded, molded, and air-dried to obtain high-quality, high-nutrient reconstituted rice made from leafy greens. This method solves the problem of nutrient loss in grain raw materials without adding other additives, while synergistically promoting nutrient absorption, improving raw material utilization and nutrient absorption efficiency, and enhancing the nutritional value of the reconstituted rice.

The invention discloses a functional additive composition for animal food. The functional additive composition is prepared from coenzyme Q10, glutamic acid, galactooligosaccharide, fructus lycii powder and the balance of food-grade carrier. The components of the composition cooperate with each other, so that the composition can support the effects of enhancing the physique vitality of animals, promoting nutrient absorption, helping to maintain a healthy intestinal environment and the like, has remarkable innovativeness and practicability, and is expected to create good benefits in the field of animal foods. The invention can be used in economic animals and pet animals.

The application relates to a feed additive of herbal extracts for Litopenaeus vannamei and application thereof. The feed additive of herbal extracts is composed of dandelion extracts and houttuynia cordata extracts. The dandelion extracts and the houttuynia cordata extracts are mixed in a proportion of 1:1 and then added into the basic feed of Litopenaeus vannamei, so that the growth performance of the Litopenaeus vannamei is remarkably improved, the intestinal and hepatopancreas tissue structures are improved, and the immunity is enhanced. Meanwhile, the extracts effectively regulate the intestinal flora structure, increase the abundance and diversity of the intestinal flora, and promote the nutrient absorption and digestion functions. The extracts have a synergistic effect, are low in price, green in environmental protection, safe and free of residues.

The invention relates to the technical field of fertilizer preparation, in particular to a preparation method of a controlled-release fertilizer capable of accurately regulating and controlling nutrients, which comprises the following steps: S1, preparing a core; s2, gradient film coating; S21, inner layer film coating; s22, coating the middle layer; s23, coating the outer layer with a film; and S3, curing and forming. Through a pH-temperature-buffer synergistic regulation mechanism, the controlled-release fertilizer conforms to the S-type nutrient absorption rule of crops, the nutrient release rate in acid soil is increased, and the fertilizer utilization rate is increased; the invention also adopts an agricultural waste modified coating material, has the advantages of good biodegradability, low cost and compressive strength of more than or equal to 20N / particle, is suitable for soil with different acidity and alkalinity and various crops, can solve the problems of low utilization rate, serious pollution, poor adaptability and the like of the traditional controlled-release fertilizer, and has a large-scale industrial application prospect.

The application discloses a kind of blending fertilizer raw material potash fertilizer and its preparation method, including the following weight parts of raw materials: 980 parts of potassium sulfate powder, 3 parts of zinc sulfate monohydrate, 10 parts of magnesium sulfate heptahydrate, 2 parts of sodium octaborate tetrahydrate, 1 part of DA-7, 4 parts of alginic polysaccharide.Seven water magnesium sulfate replenishes magnesium element, promotes the synthesis of carbohydrates, fats and proteins, is essential to maintain the green and healthy growth of crop leaves, and is conducive to improving the overall growth vigor and yield of crops.Four water sodium octaborate provides boron element, can promote pollen germination and pollen tube elongation, improve the flowering rate of crops, reduce the phenomenon of flower and fruit drop, DA-7 can promote plant cell division and elongation, improve the photosynthetic efficiency of plants, enhance the stress resistance and nutrient absorption capacity of plants, make crops grow more robustly, and improve fertilizer utilization.

This invention relates to the field of microbial fertilizer technology, specifically to a microbial compound phosphorus and potassium fertilizer that promotes nutrient absorption and its preparation method. The preparation method of a microbial compound phosphorus and potassium fertilizer that promotes nutrient absorption includes: preparing sunflower disc extract and Moringa leaf extract; preparing slow-release microcapsules; preparing microspheres loaded with bacteria; and preparing the compound phosphorus and potassium fertilizer. This invention first selectively oxidizes konjac glucomannan using sodium periodate, then crosslinks the oxidized konjac glucomannan with lignin under weakly acidic conditions to form a three-dimensional network crosslinked polymer framework. Urea and dipotassium hydrogen phosphate are encapsulated in the network channels or adsorbed onto the framework during the crosslinking process, forming nutrient-loaded slow-release microcapsules. After the slow-release microcapsules are made into a compound phosphorus and potassium fertilizer and applied, nutrients are gradually released as the crop grows, which helps improve nutrient absorption and utilization, thereby promoting nutrient absorption.