185 results about "Calcium superphosphate" patented technology

The invention relates to the technical field of leymus chinensis planting, in particular to a method for planting leymus chinensis in a salinized sand land, which is used for interplanting mousse winterplant in an oat land. The row spacing is 80 cm, the sowing depth is 1-1.5 cm, the sowing amount is 0.5 kg / mu, sowing is carried out in line, and 27.8 kg / mu urea (N is greater than or equal to 46%) is applied as a base fertilizer. Timely irrigation. The fertilizer is applied once in spring every year. A test nitrogen fertilizer is urea (N > = 46%), a phosphate fertilizer is triple superphosphate (P2O5 > = 44%), a potash fertilizer is potassium sulfate (K2O > = 52%), and timely irrigation is carried out. According to the invention, not only is a proper fertilizer combination provided, but also the growth, development and asexual reproduction capabilities of leymus chinensis are greatly improved. The planting effect of leymus chinensis can be effectively improved, the yield and quality of leymus chinensis are improved, and good practicability is achieved. Meanwhile, the formula is economical and reasonable, and is easy to popularize and apply.

The invention relates to the technical field of fertilizers, and discloses a slow-release coated fertilizer and a preparation method thereof. Comprising the following raw materials in parts by weight: 57 to 77.6 parts of urea, 14.25 to 24.25 parts of diammonium phosphate, 0 to 5 parts of calcium superphosphate, 4.75 to 14.55 parts of potassium chloride, 0.03 to 0.2 part of chitosan, 0.0075 to 0.05 part of nano silicon dioxide, 0.001 to 0.015 part of glutaraldehyde, 2.96 to 4.94 parts of deionized water, 0.01 to 0.1 part of bacillus subtilis, 0.05 to 0.2 part of mesoporous silicon dioxide loaded nano selenium and 0.5 to 1 part of potassium fulvate. Chitosan, nano silicon dioxide and glutaraldehyde are matched with one another, and chitosan has pH responsiveness, so that the problems that a coating layer of a traditional slow-release fertilizer is prone to being affected by the environment and broken in advance, nutrients are rapidly released, and the slow-release effect is reduced are solved.

The invention discloses a preparation method for simultaneously and efficiently extracting crocodile polypeptide and crocodile oil, and relates to the technical field of biological extraction, crocodile meat is used as a raw material, and heating micro-pressure treatment is sequentially performed to promote component dissolution; a multi-stage enzymolysis process is adopted, alkaline protease, neutral protease and lipase are sequentially used, and a calcium phosphate system is used for assisting filtration and a natural antioxidant is added in a gradient manner in the enzymolysis process; performing plate frame filtration and standing layering subsequently to realize crude separation of the oil peptide; finally, the crocodile polypeptide liquid is subjected to multi-stage membrane filtration and spray drying, the crocodile crude oil is subjected to ultrasonic-assisted fishy smell removal, ceramic membrane fine filtration and gradient cooling phase change refining, and after enzymolysis treatment and before filtration, a composite additive is added into enzymatic hydrolysate and stirred. No organic solvent exists in the whole process, and the product yield, purity and oxidation stability are remarkably improved.

The invention discloses heavy metal resistant bacillus velezensis as well as a microbial remediation agent and application thereof. Bacillus velezensis DBS01 is screened from heavy metal contaminated soil in Dabaoshan mining areas in Shaoguan City, Guangdong province, is preserved in China Center for Type Culture Collection (CCTCC), has a preservation number of CCTCC M 20252228, not only has resistance to various heavy metals, but also can metabolize and secrete metabolites such as organic acid, cellulase and growth hormone in different growth stages, and can be used for preventing and treating various heavy metals. Multiple functions of curing heavy metals, dissolving phosphorus and potassium, promoting plant growth and the like are realized. According to the method, bacillus velezensis DBS01 is inoculated into a culture medium containing straw, calcium superphosphate, agar and sodium alginate are added, and a mixture containing the bacillus velezensis DBS01 is freeze-dried, so that the heavy metal contaminated soil in the mining area can be efficiently repaired in an environment-friendly manner at low cost, and the ecological function recovery of the soil is effectively promoted.

The invention discloses an environment-friendly bio-organic fertilizer for improving acidified soil and a preparation method of the environment-friendly bio-organic fertilizer, and belongs to the technical field of organic fertilizers. The bio-organic fertilizer is prepared from the following raw materials in parts by weight: 10-20 parts of a composite gel material, 80-100 parts of decomposed livestock and poultry manure, 10-20 parts of a microbial agent, 30-50 parts of modified waste tea biochar, 10-15 parts of urea, 5-10 parts of humic acid, 1-5 parts of calcium superphosphate and 1-5 parts of sodium carboxymethyl cellulose, the microbial agent is prepared by mixing bacillus pseudofirmus, pseudomonas oryzae and azotobacter beijerinckii according to the volume ratio of 1: 1: 1. The bio-organic fertilizer can remarkably improve the pH of soil and increase the content of organic matters in the soil, has good buffering capacity and long-term effect, enhances the water and fertilizer retention capacity of the soil, and has a remarkable effect of increasing both production and income of crops.

The invention belongs to the technical field of organic fertilizer processing, and particularly relates to a sheep manure organic fertilizer and a production process thereof. The process comprises the following steps: adding straws into sheep manure to adjust the carbon-nitrogen ratio to (25-35): 1, carrying out composting fermentation and keeping ventilation, collecting ammonia gas by using a calcium superphosphate solution, and adding the calcium superphosphate solution into compost during turning in a high-temperature period. The process is realized through a specific organic fertilizer preparation device, the device comprises a fermentation box and a recovery box, the fermentation box is provided with a turning mechanism and a spraying device, and a calcium superphosphate solution and related structures are arranged in the recovery box to enhance ammonia absorption. In the process, parameters such as calcium superphosphate solution concentration, liquid level height, stockpiling ventilation rate and the like are limited. The organic fertilizer prepared by the process is small in nitrogen loss, supplements phosphorus element, effectively improves the fertilizer efficiency performance, can effectively avoid the risk of unqualified fertilizer, and enables the product quality to be more stable.

The invention discloses a lignin-based hydrogel water-retaining agent as well as a preparation method and application thereof, and belongs to the technical field of soil water retention improvement. The preparation method provided by the invention comprises the following steps: dissolving lignin under an alkaline condition to form a uniform solution; adding a polymerization reaction monomer into the uniform solution, stirring and mixing, sequentially adding an initiator, an accelerant, a cross-linking agent and a regulator, and stirring and reacting to obtain a reaction solution; the regulator is selected from one or more of clay, zeolite, ammonium bicarbonate, potassium carbonate or calcium superphosphate; injecting the obtained reaction liquid into a mold, and performing ultrasonic treatment to form hydrogel; the hydrogel is cleaned and aged, and the hydrogel is obtained. The preparation method is simple, environmentally friendly, low in energy consumption, short in process, wide in raw material source, low in cost and suitable for industrial production, and the obtained lignin-based hydrogel water-retaining agent is free of toxicity and pollution and has excellent water absorption performance and biodegradability.

The invention belongs to the technical field of coating breeding, and particularly relates to a pretreatment method for iron powder coating breeding. Comprising the following steps: (1) mixing granular urea, calcium superphosphate and potassium chloride to obtain granular fertilizer; (2) dissolving granular fertilizer in water to prepare a granular fertilizer aqueous solution, soaking the rice seeds in the granular fertilizer aqueous solution for 3-5 hours, taking out the rice seeds, spreading the rice seeds in a shade place, and airing the rice seeds for 10-20 minutes to obtain fertilizer-soaked seeds; (3) mixing iron powder, granular fertilizer and bentonite in a powerful mixer for 5-10 minutes to obtain an iron fertilizer mixture, and rolling the iron fertilizer mixture through a high-pressure roller mill to obtain a roller-milled material; the rice seeds are coated with iron powder, so that the dead weight of the seeds is increased, the floating rate and the bird damage loss rate are greatly reduced, and the purpose of direct seeding of the rice seeds can be achieved.

The invention discloses a multi-effect soil conditioner for organic matter contaminated soil and a preparation method thereof, and relates to the technical field of compound fertilizers, the multi-effect soil conditioner comprises the following raw materials by weight: 5-7 parts of urea, 25-30 parts of calcium superphosphate, 7.5-8.5 parts of potassium sulfate, 13-17 parts of farmyard manure, 8-9 parts of perlite, 50-60 parts of straw biochar, and 8-10 parts of an organic pollutant adsorbent. The organic pollutant adsorbent is a MOFs-based composite material, and the stability, oxidation resistance and high-temperature stability of the organic pollutant adsorbent in wet soil are improved, so that the prepared multi-effect soil conditioner has relatively high organic pollutant adsorption capacity, and the soil conditioner has relatively good soil quality on the basis of meeting the nutritional requirements of soil. The organic pollutants can be adsorbed and gathered in cooperation with the straw biochar, subsequent pollutant removal is facilitated, and the method is worthy of application and popularization.

The invention belongs to the technical field of saline-alkali soil restoration, and particularly relates to a medium element fertilizer for saline-alkali soil improvement and a preparation method thereof. According to the invention, calcium superphosphate in the fertilizer can provide a phosphorus source required by crop growth and can release Ca < 2 + > to replace Na < + >, and the complexing agent can chelate Cl <-> and SO4 < 2-> to synergistically reduce soil salinity; wherein the nitrogen source, the potassium source and the magnesium source can provide nitrogen, potassium and magnesium required by plant growth, and manganese, silicon and calcium elements in the pretreated electrolytic manganese residues enhance the salt resistance of crops; through the synergistic effect of all the components, the finally obtained fertilizer can synchronously realize saline-alkali soil desalination, pH value reduction and organic matter and nutrient supply improvement, so that plant growth is promoted.

The invention discloses an iron tailing-based modifier for improving soda saline-alkali dry farmland as well as a preparation method and application of the iron tailing-based modifier. The iron tailing-based modifier comprises the following components in percentage by mass: 86.76%-89.18% of iron tailings, 5.28%-6.46% of humic acid, 5.28%-6.46% of aluminum sulfate and 0.26%-0.32% of calcium superphosphate. According to the present invention, based on the iron tailing-based composite modifier formula, the physical and chemical properties of the saline-alkali soil are improved, the pH value and the alkalization degree of the moderate-severe soda saline-alkali soil are significantly reduced, the physical and chemical properties of the soil are effectively improved, the air permeability, the water permeability and the nutrient supply ability of the soil are enhanced, and the significant promotion effect on the crop growth is provided so as to increase the crop yield; by establishing a modifier quantitative application model based on soil physical and chemical parameters before improvement, precise regulation and control of saline-alkali soil improvement materials are achieved, efficient resource utilization of the iron tailings is achieved, and meanwhile the soda saline-alkali dry farmland is effectively improved.

The invention relates to the technical field of improvement of coastal saline-alkali land, in particular to a soil conditioner for salt-control fertile soil of coastal fishery reclamation saline-alkali land and a preparation method of the soil conditioner. The invention relates to a soil conditioner for salt-control fertile soil of coastal fishery receding reclamation saline-alkali land. The soil conditioner comprises the following raw material components in parts by mass: 40-60 parts of urea, 25-45 parts of calcium superphosphate, 30-45 parts of potassium sulfate, 20-25 parts of modified oyster shell powder, 10-15 parts of humic acid, 3-5 parts of a compound microbial agent, 10-20 parts of desulfurized gypsum and 25-35 parts of a biochar composite material, the biochar composite material is prepared from the following raw material components in parts by mass: 1 to 2 parts of sodium alginate, 1 to 2 parts of chitosan, 3 to 8 parts of biochar, 1 to 5 parts of calcium chloride, 10 to 20 parts of tuff stone powder, 0.25 to 2 parts of acidified attapulgite, 0.01 to 0.08 part of graphene oxide, 1 to 5 parts of ferric nitrate, 0.6 to 3 parts of copper nitrate and 0.1 to 0.5 part of silane coupling agent. By adopting the soil conditioner prepared by the invention, the pH value of soil, the volume weight of the soil and the total amount of water-soluble salts can be remarkably reduced, meanwhile, the organic matters of the soil are increased, and the porosity of the soil is increased.

The invention discloses a special slow-release fertilizer for wheat in saline-alkali soil as well as a preparation method and application thereof, and relates to the technical field of slow-release fertilizers. The fertilizer contains various functional substances and a microbial agent, and specifically contains the following components in parts by weight: 5-10 parts of urea, 0.5-3 parts of potassium chloride, 5-10 parts of diammonium phosphate, 2-5 parts of triple superphosphate, 0.5-1 part of magnesium sulfate, 0.5-1 part of zinc sulfate, 0.2-0.5 part of boric acid, 0.2-0.4 part of resveratrol, 0.5-1 part of alginic acid, 0.3-0.5 part of fulvic acid and 1.0 part of a microbial mixed agent, and 0.1 to 0.3 part of a surfactant. According to the fertilizer, all the raw material components are reasonably compounded, the physicochemical properties of saline-alkali soil can be effectively improved while the growth requirement of wheat in the saline-alkali soil is met, and meanwhile the utilization rate of the fertilizer can be increased through the slow release effect, and damage to the environment is reduced.

The invention belongs to the technical field of compound fertilizers, and particularly relates to a mineral source nitro-humic acid complex phosphate fertilizer for treating land salinization and a preparation method of the mineral source nitro-humic acid complex phosphate fertilizer. Comprising the following components in parts by weight: 50-80 parts of mineral source nitro humic acid, 5-20 parts of calcium superphosphate, 1-5 parts of a soil conditioner, 1-3 parts of trace elements, 5-15 parts of biochar, 0.5-2 parts of a complex microbial inoculant and 3-8 parts of a coating material.

The invention discloses an organic compound fertilizer for promoting rice growth and application thereof, and belongs to the technical field of compound fertilizers. The organic compound fertilizer for promoting rice growth, provided by the invention, not only contains organic matters, but also contains inorganic nutrients and functional microorganisms, is rich in organic matters and various inorganic nutrients, can provide comprehensive nutrients for rice growth, and promotes healthy growth of rice. Urea, diammonium phosphate, potassium sulfate, calcium superphosphate and other inorganic fertilizers can provide nitrogen, phosphorus and potassium elements needed by rice growth and can be rapidly absorbed and utilized by rice; the animal waste, the rice straw enzymatic hydrolysate, the distillers' grains, the oil meal and the like can provide sufficient nutrients for rice and promote growth of the rice on one hand, can improve physical properties of soil and promote growth and development of rice root systems on the other hand, and are combined with the microelements, the compound microbial powder and the silicon fertilizer in use, and the components act together, so that the effect of improving the rice yield is achieved. The growth of the rice is promoted, the yield of the rice is increased, and the physical property of the soil is improved.

The embodiment of the application provides a calcium superphosphate chemical conversion device capable of improving stirring rate, and relates to the technical field of phosphate fertilizer processing. The device comprises a mixing tank, a feeding port is arranged at the top end of the mixing tank, a first motor is arranged at the center position of the top end of the mixing tank, a rotating shaft is fixedly arranged on one side of the first motor, a first gear is fixedly arranged on one side of the rotating shaft, second gears are symmetrically and meshingly connected on the two sides of the first gear, and rotating rods are fixedly arranged on one side of the two second gears. Through the operation of the first motor, the rotating shaft is driven to rotate, the two second gears on the two sides are driven to rotate through the meshing of the first gear, and then the rotating rods are driven to rotate, the first stirring rod, the L-shaped rod and the second stirring rod are driven to synchronously rotate, the coverage area is improved through the first stirring rod, the L-shaped rod and the second stirring rod, and the stirring process is more uniform and efficient, and good sufficient stirring is achieved.

The invention relates to the technical field of plant cultivation, in particular to a high-survival-rate seedling transplanting method. The transplanting method comprises the following steps: classifying and screening nursery stocks to obtain screened nursery stocks; lifting the screened seedlings according to a preset soil ball diameter to obtain a seedling transport body; loading the nursery stock transportation body into a container containing a pretreated nursery substrate (perlite, dried chicken manure, peat soil, straw and decomposed sweet potato seedlings) to obtain a nursery stock transplanting body; transferring the nursery stock transplanting body into the planting ditch for bed arrangement operation to obtain a nursery stock transplanting bed body; performing early-stage management on the nursery stock transplanting bed body to obtain a nursery stock bed; in the early-stage management, a compound organic fertilizer (rape seed cake, sheep manure, humic acid, wheat straw, bentonite, boric acid, magnesium sulfate, ammonium sulfate, calcium superphosphate, potassium sulfate and water) is used for additional fertilization; transplanting and planting the nursery stock bed to obtain transplanted nursery stocks. According to the method, by constructing a technical closed loop of root system microenvironment restoration, gradient adaptation and precise nutrition, the transplanting survival rate of the seedlings can be effectively increased.

The invention discloses an areca-nut solid fertilizer for improving the content of catechin and precise nutrition of areca-nuts and application of the areca-nut solid fertilizer, and belongs to the technical field of fertilizer preparation. The preparation method comprises the following steps: mixing cassava straws, cassava residues, hermetia illucens sand, calcium superphosphate, quick lime and zymophyte, and carrying out first composting fermentation to obtain a first fermented product; and adding macroelements containing monopotassium phosphate, potassium nitrate, urea, calcium carbonate and magnesium sulfate in a specific proportion, microelements containing boron, zinc, copper, iron and manganese in a specific proportion and bacillus subtilis into the first fermented product, carrying out second composting fermentation, and carrying out aging treatment to obtain the betel nut solid fertilizer. The prepared betel nut solid fertilizer can accurately provide nutrients according to the requirements of betel nuts for various nutrient elements, and negative effects on soil due to excessive nutrient elements are avoided; meanwhile, the content of areca catechin is increased, and the nutritional value of the areca catechin is enhanced.

This invention discloses a wheat-specific fertilizer suitable for rice-wheat rotation and its preparation method, comprising the following steps: mixing equal volumes of carboxymethyl chitosan solution, composite biochar dispersion, and agar solution, then adding sodium tripolyphosphate solution dropwise, stirring, allowing to stand, dialyzing, and freeze-drying to obtain hydrogel particles; swelling the hydrogel particles in a mixed aqueous solution of urea and superphosphate, filtering, and vacuum drying to obtain the wheat-specific fertilizer suitable for rice-wheat rotation; this invention uses a coating material to coat composite biochar powder, nitrogen fertilizer, and phosphate fertilizer, and improves the utilization rate of nitrogen and phosphate fertilizer through the slow-release effect of the coating material; by adsorbing fixed trace metal elements through the coating material, the slightly acidic state of the phosphate fertilizer during dissolution is used to convert the adsorbed fixed trace metal elements into a free state, and then titanium aluminum carbide promotes the movement of the free trace metal elements, thereby promoting the absorption and utilization of trace metal elements by wheat roots and improving wheat yield and quality.

The invention provides an oyster mushroom culture medium which comprises the following raw materials in percentage by weight: 40-50% of cottonseed hull, 10-15% of corncob, 8-15% of sawdust, 6-10% of purple perilla composite powder, 5-8% of tea seed cake pretreatment powder, 3-5% of mint composite powder, 5-8% of wheat bran, 1-2% of gypsum and 0.5-1% of calcium superphosphate, the water content of the culture medium is 65-70%, and the pH value is 6.5-7.5. The invention also provides a preparation method of the oyster mushroom culture medium, which comprises the following steps: mixing the materials according to the formula proportion, and uniformly stirring; adding clear water to adjust the water content to 65-70%, stirring, and standing for 12 hours to enable the raw materials to fully absorb water; the filling amount of each bag is 1.2 kg, sterilizing for 2-3 hours by adopting 121 DEG C high-pressure steam, and cooling to 25 DEG C or below for later use. By adding the purple perilla, the sasangua cake and the mint, the insect prevention performance of the culture medium is remarkably improved, the infectious microbe contamination rate is controlled to be 3% or below, the pest invasion rate is remarkably reduced, and the biological conversion rate and the oyster mushroom quality are remarkably superior to those of a traditional culture medium.

The invention discloses a nutrient element combined application combination for improving yield and quality of pinellia ternate and an application method. The nutrient element combined application combination comprises urea, calcium superphosphate, potassium sulfate, EDTA chelated copper, disodium octaborate tetrahydrate and sodium molybdate. The application method comprises the following steps: applying nitrogenous fertilizer and phosphatic fertilizer during sowing in April, applying nitrogenous fertilizer, phosphatic fertilizer, potash fertilizer, copper fertilizer, boric fertilizer and molybdenum fertilizer from June to July, and applying potash fertilizer, copper fertilizer, boric fertilizer and molybdenum fertilizer in August; according to the method, orthogonal experimental design is adopted, the nutrient element combined application combination most suitable for pinellia ternata production is obtained, the application method of the combined application combination designed by the invention is simple, convenient and easy to control, the yield of pinellia ternata can reach a relatively high level, the yield is 14619.42 kg: hm <-2 >, and the difference (P is less than 0.5) between the yield and the highest yield (14901.40 kg. Hm <-2 >) of the element combined application combination is not obvious.

The invention provides a sisal hemp residue vegetable seedling organic fertilizer and a preparation method and application thereof. The sisal hemp residue vegetable seedling organic fertilizer comprises a first fertilizer bag, the first fertilizer bag is prepared by fermenting the following raw materials in parts by weight through a microbial composition: 90-150 parts of fresh sisal residues, 5-20 parts of sugarcane leaves, 5-20 parts of an organic nitrogen source, 2-5 parts of molasses, 0.5-1 part of monopotassium phosphate, 0.05-0.2 part of magnesium sulfate and 0.3-0.8 part of calcium superphosphate; the sisal hemp residues and other raw materials are compounded for vegetable seedling raising, nutrients are rich, the vegetable planting benefits are improved, and the planting cost is reduced.

This invention relates to the field of fertilizer production technology, specifically to a segmented ripening preparation process for low-free-acid, high-water-soluble superphosphate; the process includes the following steps: feeding phosphate rock powder into a ball mill for grinding to a particle size ≤120 mesh, preparing 93%±0.5% industrial sulfuric acid; adding phosphate rock powder at a molar ratio of available P2O5 to sulfuric acid of 1:1.05~1:1.07, adding 0.3%~0.5% (by weight of phosphate rock powder) of a modifying agent, and reacting at 65~70℃ for 40~50 minutes. In the later stage of the reaction, low-pressure steam of 0.2 MPa is introduced; staged maturation is carried out, first in a closed chamber at 55~60℃ for 24 hours, and then in a ventilated chamber at 45~50℃ and a wind speed of 0.8~1.0 m / s for 48 hours; granulation and screening are carried out, with the granulation drum rotating at 14~16 r / min and tilted at an angle of 3°~5°; through the above methods, the problems of high free acid, low proportion of water-soluble phosphorus and insufficient production efficiency in traditional processes are solved, and the product quality and production capacity are synergistically improved.

The invention relates to a soil conditioner for improving saline-alkali soil as well as a preparation method and application thereof, and relates to the technical field of agricultural soil improvement, and the conditioner comprises furfural residues, a deadwood fermented organic fertilizer, a microbial agent, a protein material and calcium superphosphate. Experimental results show that the conditioner can significantly improve the physical structure of saline-alkali soil, the porosity is increased to 90% or above, the field moisture capacity is increased by 40-80%, and the soil moisture content is greatly increased. Meanwhile, in planting of saline-alkali tolerant plants such as caragana microphylla and Sadong green, the seedling rate of the F2 group formula applying the conditioner is increased to 45-55%, and growth indexes such as plant height, stem diameter and root development of the plants are remarkably superior to those of a control group. The method realizes resource utilization of industrial wastes, has the advantages of good improvement effect, low cost, environmental friendliness, simple process and the like, and is suitable for rapid improvement and ecological restoration of the saline-alkali soil.

The invention relates to the technical field of fertilizers, in particular to a fertilizer for plant growth and a preparation method thereof, and the fertilizer is prepared from the following components in parts by weight: 20-60 parts of tylosin mushroom dregs; 10 to 40 parts of straw; 5 to 30 parts of livestock and poultry manure; 1 to 20 parts of calcium superphosphate; 1-10 parts of potassium sulfate; and 1-20 parts of modified humic acid. According to the prepared plant growth fertilizer and the preparation method thereof, the activity and water solubility of the fertilizer are improved by means of modifying humic acid, culturing white-rot fungi, adding carbon nanotubes and montmorillonite and the like, and the adsorption and desorption capability of the fertilizer on soil nutrients is enhanced; meanwhile, the raw materials such as the tylosin residues, the straw and the livestock and poultry manure are used for promoting the flourishing of soil microbial communities and continuously improving the soil fertility, so that the problems of insufficient nutrient content, slow release, low pertinence and the like of organic fertilizers and biological fertilizers in related technologies are solved.

The application belongs to the technical field of fertilizers, and provides a fertilizer based on SOD cultivation and a preparation method thereof.The preparation method comprises the following steps: S1, according to the weight fraction, 41-45 parts of urea, 26-28 parts of potassium chloride, 22-24 parts of calcium superphosphate, 5-7 parts of bacillus subtilis spore powder, 30-32 parts of rice husk charcoal, 3-5 parts of ammonium sulfate modified magnesium-aluminum hydrotalcite and 8-10 parts of calcium chloride modified attapulgite are put into a coating machine for stirring to obtain a mixture; S2, 5-7 parts of 4wt% polyvinyl alcohol aqueous solution and 3-4 parts of distilled water are added to the mixture obtained in S1 to accelerate the granulation of the material, and granular material is obtained; and S3, the granular material obtained in S2 is subjected to drying treatment, and the fertilizer based on SOD cultivation is obtained.The application can effectively reduce the nitrogen release speed of the prepared carbon-based microbial fertilizer.

This invention provides a cultivation method to enhance the medicinal efficacy of Paris polyphylla, relating to the field of Paris polyphylla cultivation and management technology. The cultivation method mainly involves the combined application of a foliar fertilizer prepared from potassium dihydrogen phosphate, compound amino acids, potassium lauroyl glutamate, and pomegranate peel fermentation extract, and a plant compound fertilizer prepared from straw and manure compost, pomegranate peel fermentation material, and superphosphate. This invention overcomes the shortcomings of existing technologies, effectively ensuring the normal growth of Paris polyphylla while increasing the content of Paris saponins in its rhizomes, thus comprehensively improving the economic benefits of cultivation.

The invention discloses a special compound fertilizer for food crops as well as a preparation method and application thereof, and belongs to the technical field of organic and microbial fertilizers. The compound fertilizer comprises a basic fertilizer and an organic biological fertilizer source, wherein the basic fertilizer is prepared from sulfur coated urea, urea, calcium superphosphate, potassium chloride, sodium metasilicate and oyster shell powder; the organic biological fertilizer source is composed of a vinasse fermentation product, a microbial activity protective agent and lignosulfonate. The vinasse fermented product is prepared by carrying out three-stage solid state fermentation on vinasse by adopting a compound bacterium suspension consisting of mycobacillus halophilus and ocean sediment vesicular bacillus. Through synergistic fermentation of functional strains, compounding of a microbial active protective agent and introduction of a slow-release nitrogen source and stress-resistant components, synergistic interaction of efficient release of nutrients, soil improvement and improvement of crop stress resistance is realized. The compound fertilizer is suitable for grain crops such as wheat and rice, can remarkably improve root activity, yield and stress resistance, and has a wide application prospect.

A sowing method for improving the yield of Vicia sativa, which method comprises: uniformly applying calcium superphosphate and potassium chloride to a field, performing a rotary tillage treatment, and then leveling the ground; performing manual furrowing for sowing, wherein the sowing depth is 3 to 4 cm, the sowing rate is 18 to 35 kg / hectare, and the row spacing is 20 to 50 cm; performing prompt weeding, wherein a herbicide is used for weeding from a sowing stage to a seedling stage, and manual weeding is performed after a flowering stage; and performing prompt control of pests and diseases during the growth of Vicia sativa. By means of controlling the sowing rate and the row spacing, the aims of controlling the harvest of fresh grass and straw or seeds, and increasing the yield of Vicia sativa are achieved.

The application belongs to the technical field of fertilizers, and particularly relates to a humic acid organic-inorganic compound fertilizer with slow release and improved fertilizer utilization rate and a preparation method thereof. The humic acid organic-inorganic compound fertilizer comprises the following raw materials in parts by weight: 22-30 parts of biogas residue, 35-55 parts of humic acid, 8-13 parts of fine columnar algae powder, 5-8 parts of urea, 12-17 parts of ammonium sulfate, 12-15 parts of superphosphoric acid calcium, 15-20 parts of potassium sulfate and 10-15 parts of slow release coating suspension. Test results show that the humic acid organic-inorganic compound fertilizer with slow release and improved fertilizer utilization rate prepared by the application can reduce the nitrogen and phosphorus release rates of the humic acid inorganic compound fertilizer, has better slow release effect, significantly promotes the plant height, stem diameter and root length of soybeans and corn, has obvious growth promotion effect, and has wide application prospect.