1310 results about "Plant nutrition" patented technology

The invention relates to a fertilizer water dispersible granule and a method for preparing the same. The fertilizer water dispersible granule comprises one or more of plant nutrient substances and at least one surfactant which are processed to prepare the regular or irregular granular water dispersible granule. The fertilizer water dispersible granule consists of the following raw materials in portion by weight: 5 to 95 portions of the plant nutrient substance, 1 to 40 portions of the surfactant and 0 to 94 portions of an assistant. The invention has a preferential proposal: the plant nutrient substance comprises monopotassium phosphate, boric acid or borax, humic acid and salt thereof. The fertilizer water dispersible granule also comprises one or more of growth regulators. In addition, the fertilizer water dispersible granule can also comprise a disintegrating agent, an adhesive, a filler, a colorant and other assistants. The preparation method comprises: the metering, pulverization, even mixing, pelletization and drying of formula materials to obtain the fertilizer water dispersible granule. The fertilizer water dispersible granule has rapid disintegrating and dissolving (dispersing) speed in water, is fully dissolved, does not block a nozzle and a drop irrigation pipeline, is uneasy to absorb moisture, has high content of effective compositions, low packaging, storage, transportation, metering and use cost and high utilization rate of the effective compositions, reduces waste and environmental pollution, is widely applied to economic crop, gardening, lawn and urban greening and has extremely wide market application prospect.

The invention belongs to plant nutritious soil and a preparation method thereof and particularly relates to flower nutritious soil and a preparation method thereof. The flower nutritious soil contains the components of biomass water-retaining agent, turf, sapropel, black soil, corn straw, perlite, meerschaum, deer feces, fine sand, inorganic fertilizer, and the like and is processed by the steps of raw material selection, crushing, screening, disinfection, mixing, pH regulation and the like. By adopting the method of mixing organic materials and inorganic materials, the flow nutritious soil has the advantages of reasonable and loosened structure, complete nutrients, stable property, easily obtained raw materials, easy processing and low cost. In addition, the biomass water-retaining agent contained in the flow nutritious soil is a novel, multifunctional and natural macromoleclar polymer and has a three-dimensional space reticular structure, not only can absorb water and fertilizer, but also can retain water and fertilizer, and. the water absorbing capacity of the flower nutritious soil is more than 1000 times the weight thereof, a small reservoir of water and fertilizer is formed in the soil, and the water and the fertilizer are slowly released, thereby the flow nutritious soil has the functions of saving both water and fertilizer. The invention can be used for growing seedlings and planning seedlings.

The invention relates to an effervescent composition of a water-soluble fertilizer and a preparation method thereof. The effervescent composition contains one or a plurality of plant nutrient substances and one or a plurality of compounds which are contacted with water to generate gas. The effervescent composition comprises an optimized proposal that the plant nutrient substance is monopotassium phosphate. The effervescent composition can be also added with acid, a plant growth conditioner, a surfactant, a filler, a disintegrating agent, an adhesive, dye, a lube and the like. The preparation method comprises the following steps: ingredients are weighed, mixed, pulverized, pelletized and dried to obtain the effervescence composition. The effervescent composition can be manufactured through a routine production process, has rapid disintegrating and dissolving (diffusing) speed in the water, does not block a spray head or drip a pipeline, is uneasy to absorb dampness, has high content of effective compositions, low packaging, storage, metering and using cost and high utilization rate of the effective compositions, reduces waste and pollution to environment, is widely applied to economic crops, gardening, lawns and urban landscaping and has wide market application prospect.

The subject invention provides methods for producing homogenous organic base fertilizer for plant nutrition and soil fertility. Also provided by the subject invention are value added fertilizer products for plant nutrition and soil fertility and concentrated liquid formulations / nutrient supplements that provide the value added nutrients to fertilizer products. Methods according to the invention involve the application of concentrated liquid(s) and / or dry formulation(s) comprising a mixture of one or more plant nutrient(s), one or more additional organic compound(s), one or more penetrate(s), and one or more optional supplement(s) into one or more organic base material(s). These organic base materials include, and are not limited to, biosolids, activated sludge, municipal compost, animal manures (e.g., horse, cow, chicken, pig, and sheep), and composted organic byproducts.

An aeroponic growing system, double T-shaped sprayer design and method for cultivating larger plant crops and increasing harvest frequency. The system comprises a series of aeroponic growing units, each of which supports a plant's roots within an enclosure. The enclosure houses a sprayer, an interior volume of plant nutrient solution and a plumbing system for accepting and distributing the aqueous water-nutrient solution. The internal sprayer is a double T-shaped mister that sprays an atomized mist directed from a first set of nozzles onto the plant roots, along with a second set of nozzles directed toward the base of the enclosure to aerate the interior volume of plant nutrient solution. The T-shaped mister provides circumferential coverage of the plant roots, while the aeration of the plant nutrient solution provides an aerated solution that accelerates plant growth through a hybrid process of Nutrient Film Technique (NFT) called a Hyperactive Aeroponic Shallow Water Culture (HAS Culture). Several interconnected aeroponic growing units may be stationed in a parallel grid to provide ample space for rapid growth of crops, while supplying the water and nutrient solution through a network of pipes and tubes between units.

The invention relates to a plant nutrient liquid fertilizer. In order to solve the problem of over fertilization, the plant nutrient liquid fertilizer is prepared from the following raw materials in proportion by weight: aqua brassin 12-36, gibberellin 1-4, indoleacetic acid 30-80, abscisic acid 10-20, naphthaleneacetic acid 50-90, salicylic acid 80-180, vitamin C 1-3, cane sugar 40-100, chitin 20-80, 0.05-0.2 percent triacontanol 400-1,000, hydrolyzed protein 2-5, potassium dihydrogen phosphate 300-400, thiourea 40-120, cobalt chloride 5-12, borax 50-100, sodium silicate 30-55, urea 300-500, ammonium molybdate 50-80, copper sulfate 30-65, zinc sulfate 120-200, magnesium sulfate 100-150, calcium chloride 50-120, manganese sulfate 40-80 and water in the amount of 3-8 times the total amount of all the raw materials or water in the amount capable of dissolving all the raw materials, wherein the water is de-ionized water or micro cluster water; and the preparation method is that all the materials are prepared into aqueous solution. The plant nutrient liquid fertilizer has the advantages of favorably solving the problems of over fertilization and shortage of nutrient elements in soil, obviously improving the plant adverse resistance, improving the photosynthesis and the accumulation efficiency of nutritive materials and improving the yield and the quality.

The invention discloses a plant nutrition liquid, which is characterized by the following: comprising potassium nitrate, calcium nitrate, magnesium sulfate, ammonium phosphate, potassium sulfate, monopotassium phosphate and so on a good deal of element; comprising edetate disodium, ferrosi sulfas, boric acid, manganese sulfate, zinc sulfate, copper sulfate, ammonium molybdate and so on microelement; comprising azophoska fertilizer and fertilizer booster; including diverse nutritious element of vegetation development; providing nourishing element for large and medium scale bush and small arbor. This invention also discloses a utility scheme in large and medium scale woody plant soilless culture.

The invention relates to a drug fertilizer composition for preventing and treating green turf diseases. The drug fertilizer composition comprises the following components by mass percent: 0.05-5% of antimicrobial actives, 0.05-1.5% of plant growth regulator, 45-60% of macronutrient compound, 1-15% of trace nutrient element compound, 5-25% of active organic nutrient substance, and 0.5-15% of booster. By adopting the drug fertilizer composition, the plant growth regulator is reasonably compounded with a protective fungicide or a fungicide with treatment and eradication functions. An experiment proves that the drug fertilizer composition has an obvious synergic effect, and is further compounded and fused with the plant nutrient substance, so as to achieve dual effects of the drug and the fertilizer. The green turf diseases can be prevented and treated, sufficient balanced nutrient elements can be provided for maintaining the lawn, synchronous use of the drug and the fertilizer is achieved, and the drug fertilizer composition can be widely applied to growth of the golf green lawn and / or prevention and treatment of diseases.

The invention discloses a composite throwing applying agent and a preparation method thereof, and the throwing applying agent comprises the following components by weight: 35-90% of composite carrier materials, 2-7% of disease and insect pest-resistant or herbicidal raw drugs, and 3-20% of wood vinegar and tar; wherein the composite carrier materials comprise the following components by weight: 30-80% of organic powder, 5-80% of inorganic powder, 1-10% of moisture-retaining water-retaining agents, 0.1-5.0% of adhesives, proper amounts of water, and 1-10% of plant nutrient elements and / or plant growth regulators; the disease and insect pest-resistant or herbicidal raw drugs comprise one or more than one of insecticidal, bactericidal or herbicidal pesticides or microbial reagents. The invention not only makes every effort to make the application of the throwing applying agent be simple, but also allows the carrier material to have several functions of adsorption, moisture retention, continuous play of the drug effect of the loaded pesticides, and supply of large and medium trace nutrients required by crops.

The blended vegetable oil with balanced nutrients is compounded with three kinds of vegetable oil in different characteristics. The three kinds of vegetable oil include oleic acid type vegetable oil with high unsaturated fatty acid content, linoleic acid type vegetable oil with high N-6 polyunsaturated fatty acid content, and linolenic acid type vegetable oil with high N-3 polyunsaturated fatty acid content. The blended vegetable oil with balanced nutrients has balanced contents of oleic acid, linoleic acid and linolenic acid, can meet the physiological requirement of human body, and has the advantages of wide material source, low cost, rich nutrients, etc.

An effective conditioner-fertilizer of low and competitive cost particularly formulated for restoring or improving the cultivation properties and productivity of saline or alkaline soils, comprising: a) a chelating substance, for example sodium tripolyphosphate; b) a pH modifying or buffering substance, for example an inorganic acid; c) a surfactant, for example polyethylenglycols; and optionally, d) a plant nutrient substance, for example humic extracts which can advantageously derived from the pecan husk. The synergistic combination of polyphosphates, pH modifying and buffering substances and surfactants in the conditioner-fertilizer formulation significantly improves its effectiveness at a competitive cost. Other ingredients may also be added, for example, sodium lignosulphonate, calcium lignosulphonate and the like for modifying the physical structure of soils. The conditioner-fertilizer can be applied directly to the soil before plantation, mixed with the irrigation water or to the leaves during plant growth.

The embodiments herein disclose a nano-composite superabsorbent polymer (NC-SAP) composition encapsulating fertilizer / plant nutrient products and a method of producing NC-SAP based products. According to one embodiment, the method involves graft polymerizing a monomer, other than acrylonitrile, onto a carbohydrate in the presence of an initiator to form a graft carbohydrate copolymer, dispersing an inorganic nano powder, adding fertilizer nutrient to the reaction mixture, cross-linking the carbohydrate graft copolymer by adding a cross-linking agent, such as methylene bis-acrylamide, adjusting the pH of the cross-linked nano-composite carbohydrate graft copolymer and isolating the nano-composite carbohydrate graft copolymer. The method also includes drying the nano-composite carbohydrate graft copolymer, to yield particles that are NC-SAP containing fertilizer. The isolation of particles of NC-SAP polymer product may occur by the methods, including, but not limited to, granularization, extrusion and pelletization.

The invention discloses a nutrient solution cultivation method of Chinese yews and belongs to the method of plant nutrient solution cultivation. The method includes the steps: A, plant treatment: cutting off fibril and reserving main roots to be soaked in carbendazim and naphthylacetic acid; B, planting: planting the Chinese yews inside a planting basket with ceramicite; C, root speeding: placing the Chinese yews inside perlite matrix and enabling intelligentized laminas to be buried inside the perlite matrix, and controlling micro-environment factors to regulate and control a system through a plant non-test-tube rapid propagation expert system; D, root promoting: when matrix roots penetrate out the planting basket, enabling the Chinese yews to be soaked into a nutrient solution water tank and arranging the intelligentized laminas, and controlling the micro-environment factors to regulate and control the system through the plant non-test-tube rapid propagation expert system; E, cultivating to be strong, arranging the intelligentized laminas in the positions of hydrophilous root systems and plant laminas, and controlling the micro-environment factors through the plant non-test-tube rapid propagation expert system; F, modeling: trimming and modeling the Chinese yews into commodity bonsai. By the adoption of the method, breeding time is reduced by 60-80%, the new manual cultivation method of the Chinese yews is initiated, and the new way of utilizing the Chinese yews is expanded.

The invention discloses nutrient soil for flowers, relating to the technical field of biofertilizers. The nutrient soil is composed of the following components in percentage by mass: 20% of leaf mould, 20% of mountain clay, 30% of soil, 2% of chicken manure, 18% of saw dust, 9% of bulking agent, 0.5% of preservative and 0.5% of plant nutrients. The nutrient soil is rich in nutrient, low in preparation cost, favorable in sterilization and insecticide functions and suitable for households; in addition, the nutrient soil can provide relatively-large proportional long-acting solid-phase organic matters, a stable pH value and favorable water and air control performance for plants, so that the plants are more convenient in cultivation management, the plants are promoted to be rapidly rejuvenated after the roots of the plants grow, the nutrient requirements of the flowers can be met, and the environment can not be polluted; the soil can be used for most of gramineous plants and a part of woody plants with short branches and compact crowns.

The invention provides a liquid biological organic fertilizer with high content of organic substances and a preparation method. The fertilizer is characterized by comprising the following components by weight: 60% of a humic acid release inhibitor, 0.4% of a composite biological agent, 10% of fulvic acid potassium, 12% of soluble nitrogen-phosphorus-potassium raw materials, 9% of a chelating medium trace element agent, 8.47% of a soil conditioner, 0.93% of compound sodium nitrophenolate and 0.1% of naphthalene acetic acid; and the fertilizer is prepared by mixing, heating, chelating, concentrating, cooling, microorganism adding, filtering and residue removing. The invention has the following beneficial effects: plant nutrition is directly supplemented; the contents of absorbable organic substances for a root system in soil are rapidly supplemented; growth of the root system is rapidly promoted; absorption area of the root system is enlarged; the chelating medium trace element agent can not be fixed by the soil and exists in a free state in the soil, so the chelating medium trace element agent is easy to be captured and absorbed by the root system in the soil; physiological diseases and pests are prevented from occurrence; quality of an agricultural product is improved; root-rot disease and stem-rot disease are prevented from occurrence; occurrences of fusarium and verticillium wilts and bacterial wilt are reduced; meanwhile, the fertilizer is capable of resisting salinity and alkalinity, resisting continuous cropping diseases, and killing soil-borne diseases.

The invention discloses a compound water soluble fertilizer used for citrus crops, a preparation method and an application method. The compound water soluble fertilizer used for citrus crops is mainly used in plant nutrition field, and comprises the following components: an amino acid raw material, macroelements P and K, secondary elements Mg and Ca, trace elements Fe, Mn, Zn, B, Mo and Cu, a beneficial element Si, an auxiliary agent, a PH conditioning agent and an aqueous solution. The preparation method is characterized in that composite amino acid chelates Mn, Fe, Cu, Mg, Ca and Zn at normal temperature of 15-35 DEG C and prepares the water soluble fertilizer with six metallic elements, the reasonable fertilizing can be carried out at different growth period of the crops, the balance supplement of a plurality of nutrient elements required by citrus crops can be realized, and the output and quality of the citrus crops can be increased.

A flexible mobile or stationary automated plant growth and display system having a plurality of inter-connected removable or non-removable growing trays. It can be sized as needed and operates in a single or multiple modes using a pump, controller, and mixer that distribute plant nutrients via hydroponic and / or aeroponic water lines to grow chambers using one or more growth methods. It houses a storage area, dual hose bib for external use and a quick access door or lid for the addition of plant nutrients or servicing of pump if submerged. Fluid is recycled from the grow trays through a filter to the plant solution reservoir. The system is equipped with wheels for mobility and anchors for secure and safe operation. It can be mounted on, attached to vehicle or other device, or constructed as part of a vehicle or other device and operated indoors and outdoors.

The subject application provides methods for the direct or indirect improvement of levels of key phytonutrients and / or stress tolerance in plants. Methods of providing for the improvement in key phytonutrient levels and / or stress tolerance in plants are provided through the application of safeners, herbicides, fungicides, insecticides, nematicides, miticides, defoliants / desiccants, antibiotics, and / or plant growth regulators to plants. Agricultural products arising from the disclosed methods are also provided.

A composition is provided that includes in combination fertilizer particles inclusive of a plant nutrient component and a binder inhibitive of particle disintegration. The fertilizer particles are mixed with and dispersed in concert with bait particles attractive to a pest and inclusive of a pesticide or pest reproduction control agent. The bait particles remain sufficiently devoid of adherent fertilizer particle fragments so as to remain attractive to a target pest. Composition homogeneity is maintained by density matching between the fertilizer particles and bait particles or compensating for differences in density by sizing the lower density particles larger than the higher density particles.

The invention discloses plant nutrient solution with high bioactivity, which is prepared by uniformly mixing, stirring and dissolving the following raw materials in percentage by weight: 8 to 12 percent of nitro-fulvic acid, 10 to 15 percent of chelating protein, 8 to 15 percent of nitrogen, phosphorus and potassium, 2 to 4 percent of microelement and rare earth, 0.8 to 1.0 percent of compound microbe and the balance of water. The nutrient solution has the advantages of having comprehensive nutrition, low molecular weight of oxides, high bioactivity, good water-solubility, strong anti-hard water capacity, high stability in natural environment, and difficult reduction when mixed with reductive substances, well promoting the growth of root system of the plant, helping the absorption of nutritive elements, stimulating the crop growth, improving the content of chlorophyll, promoting the crop photosynthesis, particularly properly controlling the opening degree of leaf stomas of crop, reducing moisture transpiration, increasing antivirus capacity of the crop, also strengthening drought resistance and resilience capacity of the crop, effectively improving the quality of farm products, and having remarkable output increasing effect.

The invention provides a greenhouse information automatic monitoring method based on a suspension-type slide rail platform. The method realizes online patrol monitoring of greenhouse crop comprehensive information of image and infrared temperature characteristics of plant nutrition, water, diseases and diseases and pests as well as plant crown breadth, plant height and fruit growth characteristicsand the like through multi-sensor information fusion by adopting a multi-sensor system, utilizing a binocular vision multifunctional camera and combining with a laser ranging sensor and an infrared temperature sensor. By mounting the multi-sensor system on the suspension-type slide platform and combining an elevating system and an electric control rotation pan-tilt, not only accurate positioningand stationary point detection can be realized in the detection heading direction, but also multi-sensor information patrol detection at different detection distance, different pitching view fields and different detection angles is realized; and by adjusting the detection range and pan-tilt azimuth angle, the method not only can detect big plants, such as tomatoes and cucumbers, but also can meetdetection requirements of lettuce and medium and small plants in different growth periods.

The present invention relates to an organic liquid fertilizer, which is made of the following components after being fermented: 600kg of marine produced serosity, 200kg of syrup, 150kg of bean grain, 80kg of bone dust, 50kg of mother liquor and 310kg of tap water. The organic liquid fertilizer in the prevent invention is characterized in that the fertilizer can improve the soil quality with full nutrient and accelerate the growth for the plant nutrient greatly and so on.

The invention belongs to the fields of development and utilization of plant growth regulating substances, and discloses a hydrogen-rich liquid plant growth regulator. The saturation of hydrogen in a solvent is 0.1 to 100 percent, and the solvent is water, a 25 to 100 percent Hoagland nutrient solution, a Kimura B nutrient solution, a TAP nutrient solution or an MS culture solution. Calcium salt, salicylic acid, salicylate, salicylic acid derivative, humid acid or humic acid salt at the final concentration of 0-1,000mu mol / L is added into the solvent. Plants, plant tissues and seeds are irrigated, sprayed or soaked, the plant growth and morphogenesis can be effectively promoted, seed germination is quickened, heavy metal accumulation is reduced, and the oxidation resistance and stress resistance / tolerance are improved. The method has the characteristics of no pollution, environmental protection, low cost, and wide application range, and is applied to the fields such as farmland chemical regulation, provenance agriculture, environment and plant nutrition, plant tissue culture and cut flower preservation time prolonging.

The invention provides a plant nutrient solution which consists of the following components: potassium nitrate, urea, ammonium nitrate, magnesium sulphate, ammonium dihydrogen phosphate, calcium nitrate, manganese sulfate, zinc sulfate, ferric citrate, boric acid, sodium molybdate, sodium iodide, folic acid, asparagine and deionized water. According to the invention, the plant nutrient solution is comprehensive in nutrition, has no poisonous substance, cannot pollute the environment after being used, cannot cause harm to human body, and is free from undesirable odor. Through the adoption of the plant nutrient solution to cultivate foliage plants such as monstera deliciosa and rohdea japonica without soil, the leaf color is dark green, the growth is vigorous, death is hard, and compared with the conventional plant nutrient solution in the market, the growth rate is increased by 20%.

The invention provides an active amino acid water-soluble fertilizer. The fertilizer is composed of the following components in parts by weight: 480-836 parts of an active compound amino acid preparation, 210-410 parts of a compound amino acid microelement chelate, 8-16 parts of a plant nutrient element and 14-26 parts of a plant activator, wherein the effective components of the active compound amino acid preparation comprise L-amino acid with biological activity and bioactive peptides, and the compound amino acid microelement chelate is formed by chelating the active compound amino acid with the microelements in proportion. The invention also provides a preparation method and an application of the fertilizer. Agricultural resources are used as the main raw materials to prepare a new generation of the environmentally friendly amino acid fertilizer by biological fermentation technology, and the fertilizer is applied to the plants, with good plant absorption efficiency. The fertilizer takes effect quickly and has obvious effects of initiating roots, promoting seedlings, strengthening rods, increasing the resistance ability, preventing cracking and increasing the yield and the quality; and moreover the fertilizer is safely applied, and widely used in green organic agriculture and agricultural facilities.

In the invention, bamboo vinegar liquid is base material, each litre of it contains urea 1-500g., potassium dihydrogen phosphate 1-500g., potassium nitrate 1-500g., magnesium sulfate 0.1-300.0g., ferrous sulfate 0.1-300.0g., manganese sulfate 0.1-300.0g., zinc sulfate 0.1-300.0g., copper sulfate 0.1-300.0g., borax 0.1-300.0g., molybdenate 0.1-300.0g., said materials are uniformly mixed. The bamboo vineger liquid has effect of controlling plant growth, bacteriostating, sterilizing and expelling parasite which is increased by adding various nutrition elements.

The invention discloses a farmland planting method of high-selenium crops. The method is characterized by comprising the following steps: (1) uniformly mixing a nano selenium plant nutrient with a base fertilizer, applying the mixture to the surface of farmland soil and plowing so that the nano selenium plant nutrient is uniformly distributed on a plowing layer; (2) uniformly seeding on the farmland soil according to the crop types, and wetting and irrigating the soil surface layer 5-10 days after the crop seedling emerges; and (3) performing conventional field management on the crop according to different crop types until the crops are mature. According to the invention, the high-selenium crops can be cultivated, the selenium content is stable, and the proportion of organic selenium is high.

The invention discloses a hot pepper rich in organic selenium and a production method thereof. The total selenium content in the hot pepper rich in organic selenium is 10-300 micrograms per kilogram and the content of the organic selenium is equal to or more than 80% of the total selenium content. The method comprises the following steps: using a selenium-enriched seedling culture matrix of hot pepper to culture the seedlings of the hot pepper rich in organic selenium; transplanting the seedlings together with soil into a land; and finally harvesting the hot pepper rich in organic selenium, wherein a selenium-enriched seedling culture matrix of hot pepper contains nanometer selenium plant nutrient agent, garden soil, organic fertilizer, pond sludge and plant ash, and the mass ratio of the nanometer selenium plant nutrient agent to the garden soil to the organic fertilizer to the pond sludge to the plant ash is (0.001-0.1): (2-8):(1-4): (1-4): (0.5-1). The hot pepper is rich in selenium element and the whole content is uniform. By using the method, the proportion of organic selenium is increased, the problem of the prior art of the stability of selenium content in the hot peppers grown in different batches is solved, the uniform selenium content in the hot pepper is ensured, and the standard mass production can be realized.

The invention discloses a soil improvement type biological organic composite coated fertilizer which is characterized by being prepared from the following raw materials in parts by weight: 67-70 parts of human and animal excreta, 25-30 parts of riverway sludge, 8-10 parts of diatomite, 25-28 parts of diammonium phosphate, 12-15 parts of magnesium sulfate, 15-19 parts of potassium chloride, 45-49 parts of furfural residue, 40-45 parts of animal bone meal, 50-54 parts of rice husk, 35-40 parts of saw dust, 27-29 parts of urea, 3-5 parts of amino acids, 1-2 parts of sodium tetraborate, 7-8 parts of an EM fungicide, 7-9 parts of a soil improvement agent and a proper amount of water. The fertilizer disclosed by the invention is balanced in nutrition, contains inorganic elements and mineral substance components such as the riverway sludge and diatomite, the nutrient needed by plant growth is met, the soil is activated, and the water and fertilizer retaining properties of the soil are improved; and due to the addition of the soil improvement agent, the fertilizer has the effects of improving the efficiency and promoting plant nutrition absorption. According to the fertilizer disclosed by the invention, the urea melting and coating process is adopted, the slow-release effect is obvious, and the fertilizer efficiency is lasting.