Product
Patsnap Eureka
For R&D, Patsnap Eureka makes reading and utilizing patents & technical documents easy.
Patsnap Eureka AIR
Designed for self-driven R&D workflows. Generate viable solutions, solve complex R&D challenges, empower your innovation with AI.
Patsnap Eureka Materials
Designed for material experts only. Revolutionize your material R&D, from search, analyze, to developing new materials.
Feature
TechResearch
Generate reliable direction feasibility study reports for your R&D in just a few steps.
TechSeek
Discover and master advanced knowledge NOW. Basics, ideas, possibilities, all at once.
TechMind
As an expert in R&D Theories, TechMind can generates customized viable solutions instantly.
TechRisk
Analyze your overall solution with one click, know your potential R&D risks in advance.
TechMonitor
Get weekly tech updates, stay abreast of the latest tech innovations and key insights.
Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
47results about How to "Long-term fertilizer effect" patented technology
Efficacy Topic
Property
Owner
Technical Advancement
Application Domain
Technology Topic
Technology Field Word
Patent Country/Region
Patent Type
Patent Status
Application Year
Inventor
Fertilizer capable of fixing soil heavy metal and preparing method thereof
InactiveCN106631598AMeet growth needsReasonable formulaCalcareous fertilisersMagnesium fertilisersAluminium sulfatePhosphoric acid
The invention relates to the technical field of chemical engineering, and discloses a fertilizer capable of fixing soil heavy metal and a preparing method thereof. The fertilizer is prepared from, by weight, 9-11 parts of urea, 12-18 parts of phosphoric acid, 20-50 parts of alkaline potassium, 12-20 parts of reaction auxiliary, 0.6-1.5 parts of water, 15-25 parts of modified smectite powder, 0.6-1.0 part of calcium sulfate, 0.2-0.6 part of aluminum sulfate, 0.3-0.9 part of magnesium sulfate and 0.4-1.2 parts of ferrous sulfate. The used reaction auxiliary can be used as a catalyst when urea reacts with phosphoric acid and can be used for removing heavy metal ions in soil, impurity removal is omitted, no effluent or waste gas is exhausted, raw materials used in production are fully and reasonably used, and the fertilizer has remarkable environment protection benefits.
Owner:GUIZHOU UNIV
Method for preparing dendrobium officinale nutrient fertilizer
InactiveCN104291903AReduce the degree of crystallizationHigh purityCalcareous fertilisersMagnesium fertilisersChemical industryAmmonia production
The invention relates to the technical field of chemical industry, and discloses a method for preparing a dendrobium officinale nutrient fertilizer. The method comprises the following steps: determining the proportion of nutritive elements in the dendrobium officinale nutrient fertilizer by analyzing various nutritive elements absorbed in a growth process of dendrobium officinale, reacting phosphoric acid with carbamide to generate an intermediate, then introducing ammonia gas into the intermediate to produce ammonium dihydrogen phosphate, separating part of ammonium dihydrogen phosphate by crystallization so as to control the content of nitrogen and phosphorus in a solution to meet the proportion required by the growth of dendrobium officinale, and then adding potassium and other medium trace element compounds into the solution to prepare a fertilizer special for dendrobium officinale. According to a production method disclosed by the invention, raw materials can be fully used, produced ammonium dihydrogen phosphate is relatively good in quality, and the prepared fertilizer special for dendrobium officinale is relatively low in cost.
Owner:GUIZHOU UNIV +2
Production method for preparing ammonium phosphate and coproducing special fertilizer for mulberry
InactiveCN104261372AAvoid the disadvantage of lower purityQuality improvementPhosphatesFertilizer mixturesChemical industryEconomic benefits
The invention relates to the technical field of chemical industry, particularly a production method for preparing ammonium phosphate and coproducing a special fertilizer for mulberry. By analyzing nutrient demand conditions in the mulberry growth process in combination with analysis and understanding of the defects in the ammonium phosphate product preparation technique, the preparation technique of the special combined compound fertilizer for mulberry is combined with the preparation technique of the ammonium phosphate product to perform complementation, thereby lowering the waste liquid discharge amount in the ammonium phosphate product preparation technique, avoiding the defect of lower ammonium phosphate product purity due to deep crystallization, and improving the quality of the ammonium phosphate product. The method enhances the mulberry growth rate, improves the mulberry yield and quality, prevents excessive elements from residing in soil due to improper matching of nutrient elements, lowers the soil hardening rate, enhances the land utilization ratio, and has obvious environmental protection value and economic benefit.
Owner:GUIZHOU KAILIN GRP CO LTD +2
Method for preparing nutritional fertilizer for apples
InactiveCN104310339AReduce the degree of crystallizationHigh purityPhosphatesFertilizer mixturesChemical industrySal ammoniac
The invention relates to the technical field of chemical industry, and discloses a method for preparing a nutritional fertilizer for apples. The method comprises the following steps: analyzing proportions of all nutritional elements required by the growth of apples by researching the amounts of absorption of all the nutritional elements from soil in the growth process of apples, reacting phosphoric acid with carbomite to generate an intermediate, introducing ammonia water into the intermediate to produce ammonium dihydrogen phosphate, crystallizing parts of ammonium dihydrogen phosphate to precipitate, and adjusting the content of nitrogen and phosphorus in a solution to meet the requirements of the growth of apples in order to prepare the nutritional fertilizer for apples. The preparation method has the advantages of full utilization of raw materials, no emission of waste liquids polluting environment, good quality of the prepared ammonium dihydrogen phosphate, and low cost of the prepared nutritional fertilizer for apples.
Owner:GUIZHOU UNIV +2
Quick-acting and long-acting controllable compound fertilizer and preparation method thereof
InactiveCN109134120AQuick resultsSustained fertilizer effectAlkali orthophosphate fertiliserExcrement fertilisersSeedlingFilm-coated tablet
The invention discloses a quick-acting and long-acting controllable compound fertilizer and a preparation method thereof. The compound fertilizer comprises a granular fertilizer core and a slow-release compound fertilizer film coating the surface of the fertilizer core, wherein the slow-release compound fertilizer film comprises the following raw materials: polylactic acid, perlite powder, acrylicacid and volcanic ash. The compound fertilizer provided by the invention takes effect fast, has sustained, long-lasting and stable fertilizer efficiency, and can continuously supply plant nutrients;after application of a large amount of the compound fertilizer at a time, seedlings are not burned, and the fertilization amount and the fertilization times are reduced.
Owner:ANHUI HUIPU BIOTECH
Method for preparing nutritional fertilizer for wheat
InactiveCN104311182AHigh purityImprove qualityPhosphorus compoundsPotassium fertilisersChemical industryChemistry
The invention relates to the technical field of chemical industry, and discloses a method for preparing a nutritional fertilizer for wheat. The nutritional fertilizer for wheat is prepared according to nutritional element proportions required by the growth of wheat, obtained by analyzing the nutritional components absorbed in the growth process of wheat, so the utilization of the fertilizer is improved, the fertilization cost is reduced, the output of wheat in unit area is improved, the production cost of the nutritional fertilizer for wheat is low, and the preparation method has the advantages of simplicity, no discharge of pollutants, and environmental protection.
Owner:GUIZHOU UNIV +2
Method for preparing polygonum multiflorum Chinese herbal medicine nutrition fertilizer
The invention relates to the technical field of chemical industry and discloses a method for preparing a polygonum multiflorum Chinese herbal medicine nutrition fertilizer. The method comprises the following steps: analyzing the ratio of the nutrient elements needed by growth of polygonum multiflorum by detecting the amount of various nutrient elements absorbed from soil in the polygonum multiflorum growth process, thereby obtaining the polygonum multiflorum fertilizer special for polygonum multiflorum. Phosphoric acid and carbamide react to generate an intermediate product, the intermediate product reacts with an alkaline calcium salt, and one part of monocalcium phosphate generated in the reaction is crystallized and separated out through control of the parameters in the reaction, so that the contents of nitrogen and phosphorus in the reaction solution are regulated to prepare the polygonum multiflorum Chinese herbal medicine nutrition fertilizer. According to the production method, the raw materials are fully utilized, and the prepared polygonum multiflorum Chinese herbal medicine nutrition fertilizer has the advantages that the yield and quality of the polygonum multiflorum can be improved, and the purity of the byproduct monocalcium phosphate is high.
Owner:GUIZHOU UNIV +2
Gel efficient biological fertilizer
InactiveCN104045395ALong-term fertilizer effectImprove fertilizer efficiencyFertilizer mixturesBiotechnologyPhosphate
A disclosed gel efficient biological fertilizer is prepared from the following raw materials in parts by weight: 20-40 parts of silkworm excrement, 20-30 parts of lotus root starch, 40-50 parts of chicken manure, 10-20 parts of wheat bran, 50-70 parts of pig manure, 15-25 parts of rice bran, 7-14 parts of sodium dihydrogen phosphate, 5-10 parts of sodium polyphosphate, 7-14 parts of manganese sulfate, 6-10 parts of zinc sulfate, 11-17 parts of urea, 4-6 parts of potassium dihydrogen phosphate, 5-8 parts of potassium sulfate, 3-7 parts of compound sodium nitrophenolate, 2-7 parts of naphthylacetic acid and 7-14 parts of humic acid. The provided gel efficient biological fertilizer is comprehensive in organic-fertilizer nutrients, balanced in nutrition and long in fertilizer efficiency, and is capable of promoting plant growth, reducing crop diseases and helping to obtain high output.
Owner:QINGDAO CHENQING INFORMATION TECH
Production method of special fertilizer for preparing calcium hydrogen phosphate and coproducing pepper
InactiveCN104276558AMeets requirementsAvoid pollutionAlkali orthophosphate fertiliserAmmonium orthophosphate fertilisersMinor elementHydrogen phosphate
The invention relates to the technical field of chemical engineering, particularly a production method of a special fertilizer for preparing calcium hydrogen phosphate and coproducing pepper. The effective absorption amounts of nitrogen, phosphorus and potassium are analyzed according to the fertilizer demanded by the pepper, the contents of the nitrogen, phosphorus and calcium in the production process are regulated and matched, and the potassium component and other minor element compounds are added, so that the prepared combined-state compound fertilizer can maximally satisfy the demands of pepper and can be completely absorbed by the pepper (the absorption rate is up to 96.1%), thereby lowering the overhigh cost due to improper element matching in the compound fertilizer production and further avoiding the environment pollution due to solidification of the compound fertilizer since excessive elements are added into the soil.
Owner:GUIZHOU KAILIN GRP CO LTD +2
Agricultural slow-release biological compound fertilizer
The invention discloses an agricultural slow-release biological compound fertilizer which comprises the following components in parts by weight: 1-3 parts of ammonium nitrate, 2-6 parts of calcium nitrate, 1-3 parts of potassium ore powder, 7-13 parts of rock powder, 25-35 parts of grass carbon powder, 0.1-0.2 part of bacillus thuringiensis var. powder, 0.1-0.2 part of Bacillus popilliae powder, 1-2 parts of amino acid, 0.01-0.02 part of Rhodococcus powder, 0.01-0.02 part of pityrosporion ovale powder, 0.01-0.02 part of Escherichia coli powder, 0.01-0.02 part of Bacillus subtilis powder, 14-25 parts of rape cake, 25-35 parts of chicken manure, 14-23 parts of rice bran and 1-2 parts of rare-earth microelement fertilizer. The solubility of the high-efficiency slow-release biological organic compound fertilizer is low in water, and thus, the nutrient elements are slowly released in soil, thereby reducing the loss of the nutrient elements; and high-efficiency slow-release biological organic compound fertilizer has long and stable fertilizer efficiency, and can continuously supply the nutrients required by plants in the whole growth period.
Owner:QINGDAO ZHAXI BIOLOGICAL TECH
Production method for preparing ammonium phosphate byproduct used as special fertilizer for red peonies
InactiveCN104229765AAvoid the disadvantage of lower purityQuality improvementPhosphatesAlkali orthophosphate fertiliserEconomic benefitsImpurity
The invention relates to the technical field of chemical engineering, particularly to a production method for preparing an ammonium phosphate byproduct used as a special fertilizer for red peonies. Nutritional need conditions of the red peonies during growth are analyzed, defects in a preparation technology for ammonium phosphate products are combined to be analyzed and comprehended, and a preparation technology for a special combined compound fertilizer for the red peonies is combined with the preparation technology for the ammonium phosphate products, so that the two technologies are mutually complemented, the waste liquid discharge quantity in the preparation technology for the ammonium phosphate products is reduced, the defect of the lower ammonium phosphate product impurity caused by deep crystallization is overcome, and the quality of the ammonium phosphate products is improved; nutrient elements in waste liquids are adjusted and matched, so that the prepared special compound fertilizer for the red peonies can satisfy nutritional needs of the red peonies, the growing speed of the red peonies is increased, the yield and the quality of the red peonies are improved, the soil hardening rate is decreased, the land utilization rate is increased, and the method has the significant environmental protection value and the significant economic benefit.
Owner:GUIZHOU KAILIN GRP CO LTD +2
Multi-trace element controlled release fertilizer and preparation method thereof
The invention discloses a multi-trace element controlled release fertilizer and a preparation method thereof, and relates to the field of chemical fertilizers. The fertilizer is characterized in that the fertilizer comprises, by weight, 12-32 parts of urea, 11-15 parts of dry ammonium chloride, 11-15 parts of wet ammonium chloride, 0-15 parts of ammonium phosphate, 0-5 parts of calcium powder, 0-5 parts of ammonium bicarbonate, 8-9 parts of ammonium sulfate, 8-13 parts of potassium chloride, and 1 part of a PASP and trace element mixed solution; and especially the surface of the fertilizer is uniformly coated with the PASP and trace element mixed solution and then is coated. The fertilizer can meet plants' demands of various nutrients and trace elements, and can slowly release microelement fertilizer nutrients to control the nutrient loss of the fertilizer. The multi-trace element controlled release fertilizer can promote absorption of trace elements by crops, promotes growth of crop roots, enhances the lodging resistance, reduces the fertilizer loss, improves the fertilizer utilization rate, has a long-term fertilizer effect, and can continuously and stably supply plants' demands of nutrients in the whole growth period.
Owner:HEBEI LYUWANG ECOLOGICAL FERTILIZER CO LTD
Preparation method of special fertilizer for cotton
InactiveCN104310351AAffect qualityFully absorbedAlkali orthophosphate fertiliserAmmonium orthophosphate fertilisersChemical industryTrace element
The invention relates to the technical field of the chemical industry, and discloses a preparation method of a special fertilizer for cotton. A technical problem of soil hardening caused by the change of the structure of soil due to less autilization of fertilizers applied to cotton the residual of some element compounds in soil because the matching of the nutritional elements in present fertilizers cannot meet requirements of the nutritional elements in the growth process of cotton is solved. The method comprises the following steps: reacting phosphoric acid with carbomite to generate an intermediate, reacting the intermediate with an alkaline sodium salt, crystallizing parts of generated sodium dihydrogen phosphate to precipitate, adjusting the content of nitrogen and phosphorus in a reaction liquid to meet the growth requirements of cotton, and adding potassium and other medium trace element compounds in order to prepare the special fertilizer for cotton. The special fertilizer for cotton has the advantages of low production cost, and no discharge of waste liquids polluting the environment in the production process.
Owner:GUIZHOU UNIV +2
Slowly releasing or release controlled urea and its preparing process
InactiveCN1382669AReduce pollutionIncrease profitUrea compound fertilisersFertilizer mixturesControlled releaseUrease Inhibitors
A slowly-releasing or releasing controlled urea is prepared from ordinary big urea particles (50-120 wt. portions), urease inhibitor (0.4-1.2 wt. portions) and magnesium oxide (3-8 wt. portions). Itsadvantages is high effect on controlling the hydrolysis procedure of urea for higher utilization rate.
Owner:孙成
A kind of preparation method of special fertilizer for cockscomb
InactiveCN104310332BReduce manufacturing costReduce the degree of crystallizationPhosphatesAlkali orthophosphate fertiliserPhosphatePhosphoric acid
The invention discloses a method for preparing a special fertilizer for cockscomb. The method is to generate an intermediate by reacting phosphoric acid and carbonamide, and then inject ammonia gas into the intermediate to produce ammonium dihydrogen phosphate, so that a part of the dihydrogen phosphate Ammonium crystallization is used to adjust the ratio of nutrient elements in the reaction solution to meet the growth requirements of cockscomb, and add other nutrient elements required by cockscomb to prepare special fertilizer for cockscomb. This production method makes full use of raw materials, and no waste liquid is discharged to pollute the environment. By strictly controlling the amount of various parameters in the production process, the quality of the produced ammonium dihydrogen phosphate is better, and the cost of the prepared special fertilizer for cockscomb is lower. .
Owner:GUIZHOU UNIV +2
Production method for preparing special fertilizer for dasheen from diammonium hydrogen phosphate by-products
InactiveCN104276550AReduce manufacturing costReduce wastePhosphatesFertilizer mixturesHydrogen phosphateDiammonium phosphate
The invention relates to the technical field of chemical engineering and particularly relates to a production method for preparing a special fertilizer for dasheen from diammonium hydrogen phosphate by-products. By virtue of analyzing requirements on nutrient elements of the special fertilizer for dasheen and combining the defects existing in a preparation process of diammonium hydrogen phosphate products, the preparation process of diammonium hydrogen phosphate products is combined with a preparation process of the special fertilizer for dasheen so that the two processes are complementary, wastage rates of nitrogen and phosphorus and the discharge amount of waste liquid in the preparation process of the diammonium hydrogen phosphate products are reduced and the production cost of diammonium hydrogen phosphate is reduced; by controlling parameters in process steps, the purity of the diammonium hydrogen phosphate products can reach 96% and meanwhile an efficient special nitrogen-phosphorus-potassium complex salt combined-state compound fertilizer is provided for dasheen.
Owner:GUIZHOU KAILIN GRP CO LTD +2
Production method for preparing ammonium dihydrogen phosphate and by-product special fertilizer for chive
InactiveCN104326453AGuaranteed purityIncrease element contentPhosphatesAlkali orthophosphate fertiliserPhosphoric acidGrowth cycle
The invention relates to the field of chemical technique, especially to a production method for preparing ammonium dihydrogen phosphate and a by-product a special fertilizer for chive. By changing coefficients such as temperature and the like of wet-process phosphoric acid preparation of ammonium dihydrogen phosphate, purity of the product ammonium dihydrogen phosphate is raised, and a compound fertilizer containing N, P and K combined forms can simultaneously be produced. By the method, purity of ammonium dihydrogen phosphate can be raised, and the produced special fertilizer for chive has good absorptivity. Meanwhile, the produced special fertilizer for chive can meet nutritional requirements of each period of growth cycle of chive. By the use of the compound fertilizer, yield of chive is raised greatly. The special fertilizer is an efficient compound fertilizer.
Owner:GUIZHOU UNIV +2
A kind of wild orchid mushroom fishnet cultivation method
ActiveCN111990160BImprove water retentionStable and balanced growthCultivating equipmentsMushroom cultivationMushroomCulture mediums
The invention discloses a planting method of wild orchid mushroom. The original species is obtained by screening the mother species of wild orchid mushroom; The seeds are cultivated on the planting compost; the soil is cultivated until fruiting. The method provides a scientific and reasonable growth and cultivation environment for the orchid mushroom, and is a cultivation method that is easy to popularize. The orchid mushroom cultivated by this method has the advantages of simple technology, low investment, short and quick tide-turning period, and high benefit. The biological efficiency is as high as 120%, and it only takes 8 days from sowing to commercial sale.
Owner:江门市给力生物科技有限公司
A kind of production method of preparing the special fertilizer of yew by-product of potassium dihydrogen phosphate
InactiveCN104326455BIncrease element contentQuality improvementPhosphorus compoundsFertilizer mixturesControlled releasePhosphate
The invention relates to the field of chemical technique, especially to a production method for preparing monopotassium phosphate and a by-product a special fertilizer for Taxus chinensis. By changing coefficients such as temperature and the like of wet-process phosphoric acid preparation of monopotassium phosphate, purity of the product monopotassium phosphate is raised, and a compound fertilizer containing N, P and K combined forms can simultaneously be produced. In addition, formaldehyde is added into a filtrate to prepare a controlled-release compound fertilizer. By the method, purity of monopotassium phosphate can be raised, and the produced special fertilizer for Taxus chinensis has good absorptivity. Meanwhile, the produced special fertilizer for Taxus chinensis can meet nutritional requirements of each period of growth cycle of Taxus chinensis. The special fertilizer is an efficient compound fertilizer.
Owner:GUIZHOU UNIV +2
A kind of production method for preparing ammonium dihydrogen phosphate by-product sugar beet special fertilizer
InactiveCN104310340BIncrease element contentQuality improvementPhosphatesFertilizer mixturesChemical industryPhosphoric acid
The invention relates to the technical field of chemical industry, and especially relates to a method for preparing ammonium dihydrogen phosphate and preparing a special fertilizer for beet as a byproduct. The temperature and other coefficients of the preparation of ammonium dihydrogen phosphate from phosphoric acid through a wet process are changed, so the purity of the ammonium dihydrogen phosphate product is improved, and the N, P and K compounded fertilizer is produced. The method improves the purity of ammonium dihydrogen phosphate, and the produced special fertilizer for beet has high absorptivity, can meet the nutrition needs of beet in all stages of the growth period of beet, greatly increases the output of beet, and is an efficient compound fertilizer.
Owner:GUIZHOU UNIV +2
Method for preparing ammonium phosphate and preparing special fertilizer for longan as byproduct
InactiveCN104310331AReduce waste dischargeAvoid lower purityPhosphatesFertilizer mixturesChemical industryChemistry
The invention relates to the technical field of chemical industry, and especially relates to a method for preparing ammonium phosphate and preparing a special fertilizer for longan as a byproduct. The nutrition demand condition in the longan growth process is analyzed, and the disadvantages of an ammonium phosphate product preparation technology are analyzed, so the method combining a technology for preparing a special combined composite fertilizer for longan with a technology for preparing the ammonium phosphate product makes the two technologies complement to each other, reduces the discharge amount of a waste liquid in the ammonium phosphate product preparation technology, avoids the disadvantages of low purity of the ammonium phosphate product due to deep crystallization and improves the quality of the ammonium phosphate product. The adjustment and the matching of nutritional elements in the waste liquid make the prepared special composite fertilizer for longan meet nutrition demands of longan, so the growth speed of longan is improved, the output and the quality of longan are improved, the hardening rate of soil is reduced, the utilization rate of soil is improved, and the method has substantial environmental protection values and substantial economic benefits.
Owner:GUIZHOU UNIV +2
A kind of production method for preparing special fertilizer for ammonium phosphate by-product red peony
InactiveCN104229765BAvoid the disadvantage of lower purityQuality improvementPhosphatesAlkali orthophosphate fertiliserProduct analysisWaste product
The present invention relates to the field of chemical technology, in particular to a production method for preparing ammonium phosphate by-product Radix Paeoniae Rubra special fertilizer, by analyzing the nutrient requirements in the growth process of Radix Radix Radix Radix Paeoniae Rubra, combined with the shortcomings in the preparation process of ammonium phosphate products for analysis and analysis. It is understood that the combination of the preparation process of the special compound fertilizer for red peony root and the preparation process of ammonium phosphate products makes the two processes complement each other, reduces the waste liquid discharge in the preparation process of ammonium phosphate products, and avoids the deep crystallization. The shortcomings of the low purity of the ammonium phosphate products from the past have improved the quality of the ammonium phosphate products; by adjusting and matching the nutrient elements in the waste liquid, the prepared special compound fertilizer for red peony can meet the nutritional needs of red peony and improve the quality of the ammonium phosphate product. The growth speed of Radix Paeoniae Rubra improves the yield and quality of Radix Paeoniae Rubra, reduces the soil compaction rate, improves the land utilization rate, and has significant environmental protection value and economic benefits.
Owner:GUIZHOU KAILIN GRP CO LTD +2
A kind of preparation method of special fertilizer for cotton
InactiveCN104310351BAffect qualityFully absorbedAlkali orthophosphate fertiliserAmmonium orthophosphate fertilisersChemical industryTrace element
The invention relates to the technical field of the chemical industry, and discloses a preparation method of a special fertilizer for cotton. A technical problem of soil hardening caused by the change of the structure of soil due to less autilization of fertilizers applied to cotton the residual of some element compounds in soil because the matching of the nutritional elements in present fertilizers cannot meet requirements of the nutritional elements in the growth process of cotton is solved. The method comprises the following steps: reacting phosphoric acid with carbomite to generate an intermediate, reacting the intermediate with an alkaline sodium salt, crystallizing parts of generated sodium dihydrogen phosphate to precipitate, adjusting the content of nitrogen and phosphorus in a reaction liquid to meet the growth requirements of cotton, and adding potassium and other medium trace element compounds in order to prepare the special fertilizer for cotton. The special fertilizer for cotton has the advantages of low production cost, and no discharge of waste liquids polluting the environment in the production process.
Owner:GUIZHOU UNIV +2
A kind of production method of preparing dipotassium phosphate byproduct plum tree special fertilizer
InactiveCN104326457BAdjust nutrient contentIncrease element contentPhosphorus compoundsFertilizer mixturesDipotassium hydrogen phosphateControl release
Owner:GUIZHOU UNIV +2
Method for preparing ammonium dihydrogen phosphate and preparing special fertilizer for sorghum as byproduct
InactiveCN104310337AReduce the degree of crystallizationLow purityPhosphatesFertilizer mixturesChemical industryAmmonia production
The invention relates to the technical field of chemical industry, and discloses a preparation method of a special fertilizer for sorghum as a byproduct. The method comprises the following steps: analyzing the ratio of nutritional elements required by the growth of sorghum by detecting the amounts of absorption of all the nutritional elements from soil in the growth process of sorghum, reacting phosphoric acid with carbomite to generate an intermediate, introducing ammonia gas into the intermediate to produce ammonium dihydrogen phosphate, crystallizing parts of ammonium dihydrogen phosphate to precipitate, adjusting the ratio of nutritional elements in a reaction solution to meet the growth of sorghum, and adding other nutritional elements required by sorghum in order to prepare the special fertilizer for sorghum. The preparation method has the advantages of full utilization of raw materials, good quality of the prepared ammonium dihydrogen phosphate, and low cost of the prepared special fertilizer for sorghum.
Owner:GUIZHOU UNIV +2
Method for preparing monocalcium phosphate and fertilizer for garlic
InactiveCN104291307AHigh purityImprove qualityAlkali orthophosphate fertiliserAmmonium orthophosphate fertilisersPhosphoric acidMonocalcium phosphate
The invention relates to the technical field of chemical engineering, and discloses a method for preparing monocalcium phosphate and a fertilizer for garlic. The method comprises the following steps: carrying out reaction on phosphoric acid and carbamide to generate a midbody, carrying out reaction on the midbody and alkali calcium salt to generate monocalcium phosphate, analyzing the amounts of various nutrient elements required for the garlic growth through researching the amounts of the nutrient elements absorbed by the garlic from the soil, and preparing the fertilizer for garlic by utilizing the waste liquor obtained by producing the monocalcium phosphate. According to the method, the raw materials are fully utilized, the produced monocalcium phosphate is relatively good in quality and the prepared fertilizer for garlic is relatively low in cost.
Owner:GUIZHOU UNIV +2
A method for preparing calcium dihydrogen phosphate and by-product special fertilizer for garlic
InactiveCN104291307BHigh purityImprove qualityAlkali orthophosphate fertiliserAmmonium orthophosphate fertilisersPhosphoric acidMonocalcium phosphate
The invention relates to the technical field of chemical engineering, and discloses a method for preparing monocalcium phosphate and a fertilizer for garlic. The method comprises the following steps: carrying out reaction on phosphoric acid and carbamide to generate a midbody, carrying out reaction on the midbody and alkali calcium salt to generate monocalcium phosphate, analyzing the amounts of various nutrient elements required for the garlic growth through researching the amounts of the nutrient elements absorbed by the garlic from the soil, and preparing the fertilizer for garlic by utilizing the waste liquor obtained by producing the monocalcium phosphate. According to the method, the raw materials are fully utilized, the produced monocalcium phosphate is relatively good in quality and the prepared fertilizer for garlic is relatively low in cost.
Owner:GUIZHOU UNIV +2
Method for preparing ammonium dihydrogen phosphate and preparing special fertilizer for honeysuckle flower as byproduct
InactiveCN104310338AReduce manufacturing costReduce the degree of crystallizationPhosphatesAlkali orthophosphate fertiliserChemical industryAmmonia production
The invention relates to the technical field of chemical industry, and discloses a method for preparing ammonium dihydrogen phosphate and preparing a special fertilizer for honeysuckle flower as a byproduct. The method comprises the following steps: reacting phosphoric acid with carbomite to generate an intermediate, introducing ammonia gas into the intermediate to produce ammonium dihydrogen phosphate, analyzing the proportions of all nutritional elements required by the growth of honeysuckle flower through researching the amounts of absorption of all the nutritional elements from soil by honeysuckle flower, and using an ammonium dihydrogen phosphate production waste liquid in order to prepare the special fertilizer for honeysuckle flower. The preparation method has the advantages of full utilization of raw materials, good quality of the prepared ammonium dihydrogen phosphate, and low cost of the prepared special fertilizer for honeysuckle flower.
Owner:GUIZHOU UNIV +2
Preparation method of special fertilizer for Celosia cristata
InactiveCN104310332AReduce manufacturing costReduce fertilizer inputPhosphatesAlkali orthophosphate fertiliserPhosphoric acidChemistry
The invention discloses a preparation method of a special fertilizer for Celosia cristata. The method comprises the following steps: reacting phosphoric acid with carbomite to generate an intermediate, introducing ammonia gas into the intermediate to produce ammonium dihydrogen phosphate, crystallizing parts of ammonium dihydrogen phosphate to precipitate, adjusting the ratio of nutritional elements in a reaction solution to meet the growth of Celosia cristata, and adding other nutritional elements required by Celosia cristata in order to prepare the special fertilizer for Celosia cristata. The preparation method has the advantages of full utilization of raw materials, no emission of waste liquids, no pollution to environment, good quality of ammonium dihydrogen phosphate by strictly controlling all parameters in the production process, and low cost.
Owner:GUIZHOU UNIV +2
Who we serve
- R&D Engineer
- R&D Manager
- IP Professional
Why Patsnap Eureka
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com