71 results about "Phosphorus utilization" patented technology

The invention relates to a soil fertilizer technique, in particular to a long-acting slow-release corn special blending fertilizer and a preparation method thereof to solve the problems that the nitrogen and phosphorus utilization rate of the fertilizer is low, the after manuring in the corn growth period consumes a large amount of time and labor and the like. The blending fertilizer comprises the following components in percentage by weight: 45 to 58 percent of nitrogen fertilizer, 16 to 25 percent of phosphate fertilizer, 16 to 25 percent of potassium fertilizer, and 4 to 14 percent of nitrogen phosphorus fertilizer synergist; and nutritive substances of the blending fertilizer comprise the following components in percentage by weight: 24 to 28 percent of pure nitrogen, 8 to 12 percent of diphosphorus pentanitride, and 10 to 15 percent of potassium oxide. The preparation method comprises the following steps: adding the granular nitrogen fertilizer, phosphate fertilizer, potassium fertilizer and the nitrogen phosphorus fertilizer synergist into a mixing and stirring machine according to the weight ratio, mixing and stirring the materials evenly to obtain the long-acting slow-release corn special blending fertilizer, and performing sub-package to obtain the finished product; or selecting a urease inhibitor, a nitrification inhibitor and a phosphate fertilizer synergist to granulate by mixing so as to obtain the granular nitrogen phosphorus fertilizer synergist, and then blending the granular nitrogen phosphorus fertilizer synergist with the granular nitrogen fertilizer, phosphate fertilizer and potassium fertilizer to obtain the finished product. The long-acting slow-release corn special blending fertilizer and the preparation method have simple process and easy implementation, are suitable for one-step basal application without after manuring for corn production in the Northeast, and reduce the usage amount by 10 to 20 percent without reducing the yield.

The invention relates to a soil fertilizer technology and a crop disease and insect pest control technology, in particular to a disease-resistant synergy-type conditioner of protected horticultural vegetable field soil and a preparation method thereof, solving the problem that sustainable utilization of protected horticultural vegetable field is affected by the lowering soil quality. The soil conditioner comprises the following components in percentage by weight: 30-50% of medical stone powder, 20-30% of lime nitrogen, 20-30% of lignite, 5-10% of zeolite power and 5-10% of dicyandiamide. The preparation method of the soil conditioner comprises the following steps: medical stone powder screened by a 60-mesh screen, zeolite powder screened by a 60-mesh screen, the dicyandiamide and lignite are mixed and evenly stirred; then the mixture and granular lime nitrogen are mixed and evenly stirred; and after being completely mixed, the mixture is prepared into the soil conditioner. The preparation method of the invention is simple, has no pollution, can obviously improve fertilizer nitrogen and phosphorus utilization ratio of the protected horticultural vegetable field, effectively prevent and cure soil-borne diseases and has the effect on improving physical and chemical properties of soil at the same time.

The invention belongs to the fertilizer field and discloses a fertilizer effect enhancement and invalidation control agent and a method for preparing the same. The fertilizer effect enhancement and invalidation control agent comprises a nitrogen stabilizer, a biosurfactant, a biological fermentation compound amino acid, a metal ion chelating agent, a soil structure modifier and water, wherein the nitrogen stabilizer can control nitration decomposition loss of ammonium nitrogen, the biological fermentation compound amino acid can absorb combination ammoniacal nitrogen and reduce volatilization loss, and the metal ion chelating agent can complex high valence metal ions in soil, reduce phosphorus immobilization, and activate phosphorus and potassium fixed in the soil, so that the phosphorus loss is reduced, and the validity of phosphate fertilizers is enhanced. The soil structure modifier can loosen the soil and increase granular structures of the soil, and the biosurfactant can promote nutrient absorption of plants and improve the nutrient utilization. Pot culture and field fertilizer effect experiments show that the fertilizer effect enhancement and invalidation control agent can improve the phosphorus utilization rate apparently, and volumes and incomes of crops are increased.

The invention discloses a low-cost production method for container steel casting blanks. The method is characterized in that a 100 to 120-ton system comprises molten iron (106-110 tons) and waste steel (12 tons); a 150 to 180-ton system comprises the molten iron (132-140 tons) and the waste steel (20 tons); the converter terminal alkalinity is controlled to be 1.6-2.5; a slag reservation operation is adopted; in the secondary cooling process, the 120-ton system has the specific water flow of 0.7-1.0 L / kg and the 150-ton system has the specific water flow of 0.7-1.1 L / kg; the tundish temperature is controlled to be 1529-1543 DEG C; and the drawing speed is controlled to be 1.45-1.10 m / min according to different cross sections (1000-1800 mm) of a casting machine. The method has the advantages that the molten steel yield is increased, the iron loss is reduced, the molten iron phosphorus utilization rate is increased, the production cost is greatly reduced, the consumption of slag-making materials is lowered, the environmental pressure is reduced, and the national energy-saving and emission-reducing requirements are met.

The invention relates to a long-acting slow release fertilizer special for cotton, which comprises, by mass, nitrogen fertilizer active ingredient 25.65, phosphate fertilizer active ingredient 12.7%, potash fertilizer active ingredient 6.8%, bentonite 9.7-10.7% and long-acting compound fertilizer additive 0.68-0.88%, wherein the bentonite contains montmorillonite 85-90% by mass, and the long-acting compound fertilizer additive comprises, by mass, 2-8 parts of hydroquinone, 3-25 parts of dicyandiamide, 0.1-0.8 part of complex rare earth and 70-95 parts of zeolite powder. The invention further provides a preparation method of the long-acting slow release fertilizer. By applying the long-acting slow release fertilizer special for the cotton, boll rate of Xinjiang cotton is improved, the requirements of the cotton to nitrogen fertilizer at full-bloom stage and the requirements of the cotton to phosphate fertilizer and potash fertilizer at boll stage are met, and nitrogen utilization rate and phosphorus utilization rate are both improved remarkably. In addition, the long-acting slow release fertilizer is safe to users, livestock and crops and has no residues in soil and the crops.

The invention relates to an ecological and environment-friendly piglet feed, which is prepared from grade-one corn, bean meal, extruded soybean, low-protein whey powder, fermented bean meal, fish powder, soybean oil, type I calcium hydrogen phosphate, lysine hydrochloric acid, stone powder, sodium chloride, threonine, methionine, 50% choline chloride, tryptophan, special piglet compound enzyme, phytase, a special piglet microecology preparation (WST-S01), and a special piglet premix. According to the present invention, from the fields of the piglet feed digestion and absorption improvement and the environmental protection improvement, on the basis of the optimal low-protein ration, the phytase is added while the calcium hydrogen phosphate addition amount is reduced so as to improve the phosphorus utilization rate and reduce the environmental emission of phosphorus, the organic trace element is used to replace the inorganic trace element so as to improve the trace element utilization rate and reduce the heavy metal emission in the environment, and the microecology preparation is used to completely replace the antibiotics so as to effectively reduce the piglet diarrhea rate, improve the immunity, avoid the waste of resources, and reduce the environmental pollution.

The invention belongs to the field of gene engineering, particularly discloses a function of purple acid phosphatase GmPAP33 gene for promoting reuse of phosphorus in soybean mycorrhiza, and proves a function of purple acid phosphatase GmPAP33 gene in phosphorus metabolism for the first time. In a root system, GmPAP33 genes are mainly located in root cells containing mycorrhizal arbuscular structures. The GmPAP33 genes have the effect on the reuse of phosphorus in soybean mycorrhiza; through the over-expression of GmPAP33, the soybean biomass and the phosphorus absorption quantity can be increased, so that the plant phosphorus efficiency is improved accordingly. Through the transgenic technology of the GmPAP33 genes, the efficient phosphorus utilization capability of mycorrhizal crops can be improved, and phosphorus-efficient plant materials can be cultured, so that new purposes of fertilizer saving and high yield can be realized, and important theoretical and practical significances are provided for development of the environmental-friendly sustainable agriculture.

The invention discloses an environment-friendly ecological broiler feed which comprises, by weight, 528 parts of corn, 100 parts of wheat, 275 parts of 46% soybean meal, 5 parts of soya-bean oil, 50 parts of 60% high protein powder, 15 parts of stone flour, 3 parts of salt, 13.5 parts of calcium hydrogen phosphate, 1.3 parts of 99% methionine, 4.05 parts of 65% lysine, 0.25 part of anti-oxidants, 0.31 part of vitamin for chicken, 0.13 part of colistin sulfate, 0.11 part of phytase, 0.9 part of probiotics, 0.15 part of kemzyme, 2.5 parts of choline, 0.5 part of salinomycin, 1 part of broiler multi-minerals, 0.5 part of 10% bacitracin zinc, and 0.5 part of Youpuding. The breeding method using the broiler feed is a broiler breeding method for reducing broiler manure nitrogen phosphorus discharge; because of the addition of phytase and probiotics in the feed, the nitrogen and phosphorus utilization rates of broilers are effectively improved, the excretion amounts of nitrogen and phosphorus are decreased, and the utilization rate of the feed is improved.

The invention discloses a technique for manufacturing an active phosphorus organic fertilizer from pig manure, which comprises the following steps: raw material pretreatment, anaerobic fermentation, aerobic fermentation and aging. The weight percent of the raw material pig manure on dry basis is 70-95%. An auxiliary material with the organic content of higher than 60% is utilized to regulate the total water content of the pig manure and auxiliary material to 50-70%; an organic matter decomposing inoculant is added until the effective viable count in the total material is up to 0.5 million / g; and in the aerobic fermentation period, a phosphorous acidic matter is utilized to regulate the pH value to be greater than or equal to 5.5 and smaller than or equal to 8.5. The technique can effectively treat the cultivation farm excrement, enhances the index stability of the fertilizer, greatly reduces the effluvium generated in the fertilizer production process, and enhances the phosphorus utilization ratio and humus content. The active phosphorus organic fertilizer has the advantages of high thermal insulation, high fertility retention and high air permeability, contains more activated phosphorus element, and thus, has excellent promotion effects on crop root system growth, seed development and the like.

The invention provides a balanced type liquid water-soluble fertilizer. The balanced type liquid water-soluble fertilizer contains a nitrogen solution, water-soluble ammonium polyphosphate, water-soluble potassium polyphosphate and potassium chloride and is prepared from, by weight, 390-410 parts of the nitrogen solution, 150-180 parts of the water-soluble ammonium polyphosphate, 200-240 parts of water-soluble potassium polyphosphate, 50-100 parts of potassium chloride, 30-40 parts of chelated-state complex trace elements, 20-30 parts of a surface active agent and 430-550 parts of water. The liquid water-soluble fertilizer is a high-concentration liquid water-soluble fertilizer, N is greater than or equal to 170 g / L, P2O5 is greater than or equal to 170 g / L, K2O is greater than or equal to 170 g / L, and the trace elements are greater than or equal to 5 g / L. The nitrogen utilization rate is 80-82.8%, the potassium utilization rate is 80-82.6%, and the phosphorus utilization rate is 70-73%. The yield increasing rates of the fertilizer used for grapes, tomatoes and melons are 23-24.1%, 18-19.5% and 25-26.4% respectively.

The invention discloses a method for screening variety with high phosphorus utilization efficiency from multiple wheat varieties, comprising the following steps: selecting wheat varieties with same size seeds, putting the wheat varieties into a culture vessel to germinate seedlings with roots, selecting seedlings with consistent growth from the seedlings to divide into two groups, irrigating the seedlings with nutrient solvents with different phosphorus concentrations until the wheat is mature; detecting and calculating the relative plant height, the relative grain number and the relative thousand seed weight of each variety; comprehensively comparing to select several wheat varieties with the highest three indices in general to serve as varieties with the high phosphorus utilization efficiency; germinating the varieties with the high phosphorus utilization efficiency until secondary screened seedlings are rooted, selecting the secondary screened seedlings with consistent growth to divide into two groups, performing hydroponics with nutrient solvents with different phosphorus concentrations, detecting and calculating the relative weight of dry matter, the relative phosphorus content and the relative chlorophyll content of each variety; comprehensively comparing to select a wheat variety with the highest three indices in general to serve as the variety with the relatively highest phosphorus utilization efficiency. The wheat variety screened at the end by the method provided by the invention provides materials for further improving existing varieties and studying the biological property and the physiology and biochemistry mechanism of the existing varieties.

The invention relates to the technical field of chemical engineering, and particularly relates to a production method for calcium hydrogen phosphate. A calcium hydrogen phosphate product is prepared by reacting calcium oxide with a certain amount of water to form a calcium hydroxide solution; then reacting the calcium hydroxide solution with urea phosphate under stirring; controlling a pH value at 5.5-6.5; reacting for 5-20 min under stirring continuously and terminating the reaction. By adopting urea phosphate as a direct resource of phosphorus in the calcium hydrogen phosphate product, processes of removing impurities such as metal ions and fluorine in a process for producing feed level calcium hydrogen phosphate by using wet-process phosphoric acid are omitted; phosphorus utilization rate in the whole process is high; removal of a lot of wastes is prevented; and production cost of calcium hydrogen phosphate is reduced. In the obtained calcium hydrogen phosphate product, phosphorus content is 16.8-17.3%; calcium content is 20.35-22.2%; and fluorine content is 0.012-0.023%. The obtained calcium hydrogen phosphate product can fully meet the standard of feed level calcium hydrogen phosphate.

The invention provides a pseudomonas strain, which is named P623-9 and has been currently preserved in Guangdong Microbial Culture Collection Center (GDMCC). The address is Floor 5, NO.59 Building, No.100 Yard, Xianlie Middle Road, Guangzhou, the postal code is 510070, the preservation number is GDMCC NO.60806, and the preservation date is October 14, 2019. The invention also discloses applicationof the pseudomonas in improving the phosphorus utilization rate of greenhouse vegetable soil and promoting growth. According to the pseudomonas, the phosphorus dissolving amount of P623-9 is as highas 496 mg / L; the pseudomonas has good phosphorus dissolving capacity, can convert insoluble phosphatephosphorus such as fixed-state phosphorus in soil into soluble phosphorus which is easily absorbedand utilized by vegetables, reduces the application amount of a phosphate fertilizer, promotes the growth of vegetables, increases the yield by 15% or above in the application process, saves the planting cost and relieves the pollution problem.

The invention discloses a macroelement water soluble fertilizer and a preparation method therefor. Raw materials of the fertilizer comprise the following components in percentage by weight: ammonium phosphate, potassium chloride, a small molecular organic acid, a nitrogen source, a medium trace element nutrient chelate (complex), a speader and a penetrant. The preparation method comprises: by taking ammonium phosphate, potassium chloride and nitrogen source as the main raw materials, carrying out a liquid phase reaction in an aqueous solution; preparing a target product by virtue of multi-stage crystallization and filtration; then adding the spreader and the pentrant; adding the nutrient chelated medium trace elements; and converting water insoluble phosphorus by using the small molecular organic acid, wherein the phosphorus utilization ratio is improved, and the converted residues are directly used as fertilizer auxiliary materials so as to recycle resources. Moreover, the macroelement water soluble fertilizer disclosed by the invention is simple and safe in process, is fully soluble in water, is not hardened, is fast in dissolving speed, is uniform in appearance and is a chlorine-free product, and the content of water insoluble substances is less than or equal to 0.5%. The macroelement water soluble fertilizer is low in cost, is quickly absorbed by crops to improve the crop quality, and is nutritional and safe and free of environmental pollution.

The invention discloses penicillium oxalicum (fungus) capable of efficiently dissolving phosphorous. The preservation number of the strain is CGMCC No.11126. The strain is separated from soil in a booth, which has been cultivated for many years. The culture medium of penicillium oxalicum is prepared from the following components by weight: 10 grams of glucose, 0.5 gram of ammonium sulfate, 0.3 gram of sodium chloride, 0.3 gram of potassium chloride, 0.03 gram of ferrous sulfate heptahydrate, 0.03 gram of manganese sulfate tetrahydrate, 0.3 gram of magnesium sulfate heptahydrate, 5 grams of tricalcium phosphate, and 20 grams of agar. The culture temperature is 30 DEG C, and the culture pH value is 7.0 to 7.2. The provided penicillium oxalicum has a very strong phosphorus dissolving function, can be used to prepare a soil phosphorus activator for improving the phosphorus utilization rate, and is capable of successfully positioning phosphorus to the plant roots, thus the using amount of phosphorus containing fertilizer is reduced, and the output of fruit and vegetable is increased.

The embodiment of the invention discloses a rapid identification method for genotype soybean varieties with different phosphorus efficiency genotypes, and belongs to the technical field of soybean breeding. The method comprises the following steps: (1) after soybean seeds to be detected germinate into buds, respectively carrying out low-phosphorus treatment and normal-phosphorus treatment on eachvariety; (2) measuring the root surface area and the root diameter of the soybeans in the seedling stage under low-phosphorus treatment and the relative value of the phosphorus utilization efficiencyof the roots in the seedling stage of the soybeans; and (3) substituting into a regression equation, carrying out systematic clustering on a D value, and identifying the phosphorus high-efficiency genotype soybean variety, the phosphorus low-efficiency genotype soybean variety and the intermediate type soybean variety according to a clustering result. According to the method, the phosphorus efficiency of the genotype soybean varieties can be rapidly identified through three indexes in the seedling stage, the overall screening workload can be reduced, the working period can be shortened, and afoundation is laid for rapid screening of the genotype soybean varieties with different phosphorus efficiencies.

The invention discloses a carbon-based phosphate fertilizer. The carbon-based phosphate fertilizer is a mixed fertilizer comprising biochar, a phosphate fertilizer, a bacteriostat and a synergist. The carbon-based phosphate fertilizer can improve the dissolubility of a nutritive element phosphorus in soil, improve a phosphorus utilization rate, reduce a fixation rate of a nutritive element phosphorus, activate dissolution activity of fixed phosphorus in soil, improve a utilization rate of a nutritive element phosphorus and a crop absorption and utilization rate, reduce a fertilizer investment cost, improve the total amount of phosphate solubilizing bacteria in soil, improve the activity of phosphate solubilizing bacteria, convert fixed phosphorus in soil into a soluble nutrient phosphorus which can be directly absorbed and utilized by crops, prevent soil hardening caused by utilization of a single conventional phosphate fertilizer, improve a soil loosening degree, delay soil hardening, improve a soil aggregate structure, reduce soil unit weight, improve biological activity of soil, improve the soil environment, increase a fat-storage and water-retention capacity of soil, supply trace elements which are needed by crops applied with a single phosphorus element, guarantee nutrient absorption balance of crops, and realize a yield increasing effect.

The invention discloses application of bacillus megaterium and bacillus licheniformis in degradation of inorganic phosphorus, and discloses a compound microbial agent for improving the phosphorus utilization rate. The compound microbial agent is composed of bacillus megaterium, bacillus licheniformis, phytase and mineral source fulvic acid / mineral source potassium fulvate, wherein the viable count ratio of the bacillus megaterium to the bacillus licheniformis is 1: (3-5), preferably 1: 4. According to experimental research, the bacillus megatherium combined with the bacillus licheniformis has excellent degradation effect on inorganic phosphorus. When the bacillus megaterium and bacillus licheniformis are prepared into a microbial agent and a compound microbial agent to be applied to soil, degradation of inorganic phosphate fertilizer in the soil is facilitated, the utilization rate of phosphorus by crops, fruits, vegetables and the like is increased, absorption of phosphorus is promoted, and curing of the phosphorus is reduced.

The invention discloses a hybridization breeding method of high-phosphorus-efficiency maize. The hybridization breeding method includes the following steps: 1) hybridizing a male parent and a first female parent of maize to obtain hybridized F1-generation seeds; 2) under a screen planting condition, selfing the F1-generation seeds to form a second cycle line population, selecting a specific plant which has screening characters, and continuously selfing the specific plant for 8 generations, and culturing the specific plant to form a selfing line as a second female parent, wherein the screen planting condition comprises three treatment steps to the maize plant: a) sowing the seeds under a low phosphorus condition, b) performing drought treatment from a seven-leaf period to an emulsion period, and c) drought recovery: irrigating a maize planting zone in a milk-ripe period with water containing K20, and then normally irrigating the maize with water; and 3) hybridizing the second female parent with the male parent of the maize to obtain new F1-generation seeds, which are high-phosphorus-efficiency maize seeds. The selfing seeds and the hybridized seeds are high in phosphorus utilization rate, are high in yield and are drought-resistant.

The invention belongs to the field of genetic engineering, and relates to a soybean root specific efficient phosphate transporter GmPHT06 whose amino acid sequence is shown by SEQ ID No.2. The soybean root specific efficient phosphate transporter also has genes encoding the protein whose nucleotide sequence is shown by SEQ ID No.1. The soybean root specific efficient phosphate transporter GmPHT06 provided by the invention can be used to improve the phosphorus utilization of various plants and resistance ability of plants under phosphorus stress, so as to increase the yield of plants.

The invention discloses a yellow phosphorus spiral pipe type gasifying combustion furnace. The yellow phosphorus spiral pipe type gasifying combustion furnace comprises a combustion furnace, wherein the combustion furnace is connected with a molten phosphorus tank. The yellow phosphorus spiral pipe type gasifying combustion furnace is characterized in that a gasification pipe is arranged in the combustion furnace and is spirally arranged around the inner side of the combustion furnace, the tail end of the gasification pipe is arranged in the middle of the bottom of the combustion furnace and is provided with a nozzle, the other end of the gasification pipe is arranged outside the combustion furnace to be connected with the molten phosphorus tank, and the gasification pipe is fixedly arranged on a support hook of the inner wall of the combustion furnace and a support frame of a furnace chassis. According to the yellow phosphorus spiral pipe type gasifying combustion furnace, heat generated by combustion of yellow phosphorus is utilized to gasify liquid yellow phosphorus in the gasification pipe in the combustion furnace and enable the gasified yellow phosphorus to enter the combustion furnace to be fully mixed with air, thereby achieving complete combustion; the yellow phosphorus spiral pipe type gasifying combustion furnace is easy to operate, improves the phosphorus utilization rate while utilizing heat generated by phosphorus combustion, is suitable for large-scale industrial production and has good economic benefit, and the produced product has stable quality.

The invention discloses a nitrogen-phosphorus-potassium high-concentration compound fertilizer and a preparation method thereof. The nitrogen-phosphorus-potassium high-concentration compound fertilizer is prepared from, by weight, urea, coal humic acid, potassium chloride, potassium sulfate, ammonium chloride, ammonium bicarbonate, calcium superphosphate, monoammonium phosphate, bentonite, calcium carbonate, kaolin, yellow humic acid, brown humic acid, amino acid, plant probiotics, an initiator and a polymerization catalyst, wherein the plant probiotics is nitrogen-fixing bacillus or bacillus licheniformis or bacillus subtilis. The compound fertilizer is high in nutrient content, extremely few in accessory component and good in physical characteristic, reasonable matching and scientific proportioning are adopted, the concentration of the fertilizer is increased, the components are increased, the hygroscopicity is improved, the fertilizer caking problem can be improved, the fertilizer utilization rate is increased, the soil fertility is enhanced, the quality of crops is improved, and the yield of the crops is increased; after the plant probiotics is added, the nitrogen utilization rate is increased by 20%-50%, the phosphorus utilization rate is increased by 15%-25%, and the amount of potassium absorbed by plants is increased by 1.5 times or above.

The invention discloses a biological activating agent for improving the soil phosphorus utilization as well as a preparation method and application thereof, and belongs to the technical field of agricultural soil improvement. The biological activating agent for improving the soil phosphorus utilization is prepared from the following raw materials in parts by mass: 400 to 600 parts of glucose, 200to 300 parts of citric acid, 20 to 30 parts of fructose, 20 to 30 parts of fucose and 0.5 to 3 parts of quercitrin. The biological activating agent provided by the invention is applied into soil through drip application, furrow application or hole application; the microbial activity of the soil can be regulated and controlled; the soil accumulated state phosphorus utilization efficiency is improved. After the use of the biological activating agent provided by the invention, the soil phosphatase activity is obviously enhanced; the crop yield is obviously improved.

The invention discloses a yellow humic acid-potassium dihydrogen phosphate compound fertilizer and a preparation method thereof. The compound fertilizer comprises the following raw materials in part by weight: 610-660 parts of water, 350-390 parts of ethylamine, 120-140 parts of KOH, 160-200 parts of urea, 19-22 parts of boric acid, 15-21 parts of ZnSO4, 16-20 parts of MnSO4, 550-650 parts of liquid yellow humic acid, and 17-21 parts of phosphoric acid. The compound fertilizer of the invention has the functions of balanced nutrients, high fertilizer efficiency, improved quality and increased yield, has the functions of nitrogen fixation, phosphorus dissolving, slow release of potassium, and improving of the fertilizer utilization rate, has the unique functions of regulating soil pH and improving soil hardening and the like, can promote plant growth and improve plant drought resistance and anti-freezing ability, can increase a walnut single-fruit weight from 10.6 g to 13.1 g, an oleic acid content from 15.7% to 20%, and a yield by 7.3%, and reduces phosphorus fixation, promotes phosphorus absorption and increase the phosphorus utilization rate by using yellow humic acid to protect awater-soluble phosphorus fertilizer or a phosphorus-based compound fertilizer.

The invention discloses a novel sugar-containing and phosphorus-containing fertilizer. The novel sugar-containing and phosphorus-containing fertilizer is characterized in that the carbon-phosphorus ratio of the novel sugar-containing and phosphorus-containing fertilizer is (1-15): 1 according to the mass of carbon and phosphorus elements, and the novel sugar-containing and phosphorus-containing fertilizer is divided into a low-carbon type (the carbon-phosphorus ratio is (1-4): 1) and a high-carbon type (the carbon-phosphorus ratio is (4-15): 1); and the carbon source contains any one or more of glucose, cane sugar, cane molasses and beet molasses. The novel sugar-containing and phosphorus-containing fertilizer disclosed by the invention is applied to soil in a dripping or strip applicationmanner, and the phosphorus utilization efficiency of crops is improved by regulating and controlling the inherent phosphorus-dissolving microbial activity in the soil. After the novel sugar-containing and phosphorus-containing fertilizer disclosed by the invention is used at multiple test sites, the soil respiration is enhanced, the phosphatase activity is remarkably improved, the soil water-soluble phosphorus concentration is remarkably increased, and the yield of crops is remarkably increased.

The invention discloses a fertilizing method capable of improving the utilization efficiency of a phosphate fertilizer in vegetable farmland in south China. The fertilizing method comprises the following steps: testing soil for formulated fertilization, calculating a standard fertilizing amount for soil vegetable, using an organic fertilizer with a mol ratio of carbon to nitrogen of 20-35: 1 as a base fertilizer, spreading 300 to 1000 kg of the organic fertilizer over each mu of the soil in one step 2 to 3 weeks before planting of the vegetable, carrying out plowing and carrying out irrigation once, wherein plowing depth is 10 to 25 cm; and drying a field in the air, applying an inorganic fertilizer as a base fertilizer and carrying out topdressing three times in different growth periods of the vegetable. According to the invention, through application of the organic fertilizer with a certain carbon-to-nitrogen ratio, phosphorus absorption and activation capabilities of crops can be improved, the phosphorus concentration at a rhizosphere area is increased, the utilization efficiency of phosphorus is enhanced, and crop growth and high efficiency utilization of the phosphorus resource are promoted; so the key bottleneck problem of low fixed phosphorus utilization efficiency of red soil where accumulation of the fixed phosphorus is high in China is overcome, and the fertilizing method is of an important practical application value.

The invention discloses a recommended applying method for wheat phosphorus chemical fertilizers. According to wheat target yield and soil nutrient conditions, phosphorus fertilizer recommended quantity in a wheat growth period is determined on the basis of a formula that PT:PT=PP*YM+(20-PS)*PC+CP, wherein PT refers to phosphorus fertilizer recommended quantity for wheat per mu, YM refers to wheattarget yield, PP refers to a phosphorus unit yield coefficient of wheat, PS refers to soil effective phosphorus content measured value, PC refers to a soil effective phosphorus utilization coefficient, and CP refers to phosphorus recommended ecological environment comprehensive correction parameters. According to the recommended applying method for the wheat phosphorus chemical fertilizers, the target yield is multiplied by the phosphorus unit yield coefficient of wheat to obtain the nitrogen fertilizer quantity required by the target yield, wheat planting personnel can quickly and accuratelycalculate wheat nitrogen and phosphorus-potassium fertilizer applying quantity according to the formula, defects of common recommended fertilizing methods are overcome, and convenience in understanding, convenience, practicality, remarkable effects and suitableness for application and popularization are realized.

The invention provides a method for improving the calcium and phosphorus utilization ratio of livestock and poultry. The method comprises the following steps: (1) obtaining full-length DNA of a phytase gene; (2) preparing a coccidium transfection vector pMDEA-phytase; (3) performing transfection on the vector and screening transgenic coccidia; and (4) inoculating the transgenic coccidia for expressing phytase into bodies of the livestock and poultry in an oral administration manner to ensure that the coccidia express and release phytase while developing in intestinal tracts, and degrading phytic acid. By adopting the method provided by the invention, phytase genes with different sources are expressed in the coccidia for the first time, so that a recombinant micro biological reactor is obtained and can generate phytase directly applied to the livestock and poultry, and equipment for production and purification and related operations are not needed.

The invention discloses efficient green Chinese onion planting fertilizer rich in microelements. The efficient green Chinese onion planting fertilizer comprises, by weight, oyster shells, polylactic acid, sodium bentonite, potassium mineral powder, manioc waste, furfural residues, oil residues, saccharomycetes, phosphobacteria, potassium bacteria, cytokinin, a proper amount of hydrogen peroxide, a proper amount of ammonium hydroxide and the like. The potassium mineral powder, the manioc waste, the furfural residues and the oil residues are adopted to be matched with nutrient substances, enveloping controlled release fertilizer is prepared after fermentation, the fertilizer is rich in organic matter, mineral elements and microelements, and nutrients are abundant. An enveloping layer capable of supplying oxygen and dynamically adjusting holes is adopted, the fertilizer effect time is long, organic matter nutrients can be released for a long time, metabolism of green Chinese onions can be promoted, the nitrogen and phosphorus utilization rate of the green Chinese onions is increased, the growth and photosynthesis of the green Chinese onions are promoted, and the utilization efficiency of the green Chinese onions for the fertilizer is improved, green Chinese onion plants are stout and strong in meat quality, the content of proteins, cellulose, mineral elements and microelements is increased, the quality of the green Chinese onions is improved, efficient cultivation of the green Chinese onions is improved, and the green Chinese onions can be widely popularized and applied.