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195 results about "Calcium cyanamide" patented technology
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Calcium cyanamide is the inorganic compound with the formula CaCN₂. It is the calcium salt of the cyanamide (CN²⁻₂) anion. This chemical is used as fertilizer and is commercially known as nitrolime. It was first synthesized in 1898 by Adolph Frank and Nikodem Caro (Frank-Caro process).
Metallurgical V-N microalloying and compound deoxidation cored wire
A metallurgical V-N microalloying and compound deoxidation cored wire contains a core wire and a cladding steel belt. The technical key point of the cored wire is as follows: the core wire of the cored wire consists of a vanadium-increasing agent, a nitrogen-increasing agent and a deoxidizing nitrogen-fixing agent of which particle sizes are less than 6mm, wherein the vanadium-increasing agent is ferrovanadium, nitrided ferrovanadium or vanadium pentoxide; the nitrogen-increasing agent is ferrosilicon nitride, silicomanganese nitride, ferromanganese nitride, ferrochromium nitride, silicon nitride, aluminum nitride or calcium cyanamide; and the deoxidizing nitrogen-fixing agent contains one or more of aluminum, calcium, magnesium and barium, and can also contain one or more of titanium, zirconium, niobium, manganese, chromium, silicon, carbon and iron. By adopting the cored wire, the V / N ratio of steel can get closer to the optimal proportion, the enhancing function of vanadium can be utilized furthest, vanadium resources can be saved, the recovery rate of nitrogen is high, the nitrogen content is stable, the compound deoxidation function can also be realized, the V-N microalloying cost can be reduced and the quality of steel can be increased.
Owner:侯巍 +2
Soil conditioner
InactiveCN103320140AAchieve improvementOptimized areaOther chemical processesOrganic fertilisersPotassiumHigh activity
The invention provides a soil conditioner. The soil conditioner is prepared from the following raw materials in parts by weight: 0.15 part of water-soluble nano-silicon dioxide, 0.2 part of anionic polyacrylamide, 0.02 part of grondverbeteraar, 0.2 part of 50 percent calcium cyanamide, 0.05 part of abamectin, 0.05 part of 30 percent calcium chloride, 0.02 part of borax, 0.01 part of EDTA-Fe (ethylene diamine tetraacetic acid-Fe), 0.15 part of carboxymethyl cellulose, and 0.2 part of high-activity silicon-calcium-magnesium-potassium fertilizer. The soil conditioner has the function of improving soil and, and realizes improvement and fertilization of soil in one step by adding trace elements, bacteriostatic agent and the like.
Owner:山东亚联生物科技有限公司
Method of preparing cyanamide aqueous solution and dicyandiamide and coproducing carbon and calcium carbonate by calcium cyanamide
InactiveCN101016151AHigh purityAvoid mixingCalcium/strontium/barium carbonatesOrganic chemistryCalcium cyanamideNitrogen
The invention discloses a manufacturing method of mono-cyandiamide solution and di-cyandiamide and joint carbon and calcium carbonate, which comprises the following steps: adding limestone nitrogen into 3%-30% mono-cogeneration solution; stirring until reacting completely under 60 deg.c; separating insoluble matter to obtain carbon; making the effective nitrogen molar rate of mono-cogeneration and limestone nitrogen in the mono-cogeneration solution more than 1; aerating carbon dioxide into filtrate; evolving calcium carbonate with pH value below 10 under 60 deg.c; proceeding binary polymerization for mono-cogeneration to make di-cogeneration with high dissolving efficiency.
Owner:芮海平 +1
Method for efficiently reducing continuous cropping obstacles of facility soil
InactiveCN102487621AEfficient killingPrevention and treatment of umbilical rotSoil-working methodsContinuous croppingSoil treatment
Owner:南京市耕地质量保护站 +1
Chicken manure deodorant ammonia-fixing fertilizer and preparation thereof
InactiveCN101372426AReduce lossesImprove microbial activityBio-organic fraction processingClimate change adaptationFermentationPollution
The invention relates to an organic fertilizer, in particular to a chicken manure deodorizing and nitrogen preserving organic fertilizer and a preparation method thereof. Calcium cyanamide, natural zeolite, organic materials are taken as additive materials added to fresh chicken manure for stacking and fermentation treatment so as to prepare the organic fertilizer. The preparation method is characterized by simple process and low cost, and solves the problems of loss of nitrogen nutrients in wastes and environmental pollution in raising chicken. The components of the organic fertilizer based on weight ratio are 10-20% of the organic materials, 2-3% of the calcium cyanamide, 3-5% of the natural zeolite, and 73-84% of the chicken manure on dry basis. The preparation method is as follows: the organic materials, the chicken manure, the calcium cyanamide and the natural zeolite are stacked in layers according to a certain proportion; the outer layer is sprinkled with the organic materials, after 7-10 days of fermentation sealed by plastic cloth, turnover is done mechanically or artificially, then the sealed fermentation is carried out for another 7-10 days by the plastic cloth, and the organic fertilizer is obtained after being dried in the sun. The organic fertilizer has the advantages of reasonable formula, good nitrogen preserving and deodorizing effects, and easy application, thus being suitable for being used as a fertilizer for producing pollution-free agricultural products.
Owner:SHENYANG INST OF APPL ECOLOGY CHINESE ACAD OF SCI
Seedling raising substrate for machine-transplanted seedling tray for hybrid rice
InactiveCN104322311AHigh degree of fitReduce mechanical damageGrowth substratesCulture mediaPhosphoric acidFacultative anaerobic organism
The invention provides a seedling raising substrate for a machine-transplanted seedling tray for hybrid rice. The seedling raising substrate is prepared from the following raw materials in part by weight: 50 to 60 parts of crop stalk with lower than 10 percent of water content, 21 to 30 parts of animal waste with lower than 10 percent of water content, 13 to 20 parts of substrate carrier and 1 to 2 parts of substrate synergist, wherein the substrate synergist consists of the following components in percentage by mass: 65 to 75 percent of calcium cyanamide, 15 to 25 percent of calcium superphosphate, 7 to 9 percent of sodium silicate, 0.5 to 1.5 percent of boron and zinc and 0.5 to 1.5 percent of bioactive fungicide; the bioactive fungicide is one or several of bacillus subtilis, facultative anaerobe and agricultural photosynthetic bacteria; the raw materials are composted and fermented for three times to form the seedling raising substrate for the machine-transplanted seedling tray for hybrid rice. The seedling raising substrate is comprehensive in nutrition, is suitable for mechanized seedling raising for the hybrid rice, and ensures that germination and rooting of rice seeds are quick, the planting percent is high and seedlings are robust.
Owner:HUNAN HYBRID RICE RES CENT
Smelting method of non-quenched and tempered steel
ActiveCN110055450AImprove purityReduced activityManufacturing convertersProcess efficiency improvementSmelting processCalcium cyanamide
The invention discloses a smelting method of non-quenched and tempered steel. The smelting method comprises the working procedures of converter smelting, LF refining, VD vacuum treatment and continuous casting, and comprises the specific technological steps that (1) nitrogen is blown at the bottom in the whole converter smelting process, and converter high-carbon drawing and tapping is carried out; (2) diffusion deoxidation is carried out in the LF refining process, good deoxidation and desulfurization effects are guaranteed, and the N content of molten steel after LF finishing is 75-90ppm; (3) VD vacuum treatment is carried out, wherein the content of N in the molten steel after hollow breaking is 50-60 ppm, after hollow breaking, soft blowing time is larger than or equal to 30 min, and argon flow is smaller than or equal to 25 L / min; and (4) continuous casting adopts crystallizer stirring and tail-end stirring, medium-high carbon tundish covering agent and medium-carbon crystallizercovering slag are used, and continuous casting billets are cooled slowly in an off-line mode. According to the smelting method of the non-quenched and tempered steel, the nitrogen content yield is stable, the performance of the non-quenched and tempered steel is good, calcium cyanamide (CaCN2) is not adopted, environmental pollution is small, the feeding amount of the manganese nitride wire is small, and the production cost is low.
Owner:石钢京诚装备技术有限公司
Particle calcium cyanamide compound fertilizer and technique for processing the same
ActiveCN101440000AEasy to differentiateSolve solubilityClimate change adaptationExcrement fertilisersDecompositionCalcium cyanamide
The invention relates to a fertilizer, in particular to a granular calcium cyanamide compound fertilizer and a technique for processing the same. The granular calcium cyanamide compound fertilizer comprises the following components according to the total weight: 10 to 80 percent of calcium cyanamide, 10 to 80 percent of adding components, and 5 to 30 percent of caking agent, wherein the adding components comprise one or more than one of animal wastes, plant straws, decomposed coal, humic acid and humic acid magnesium; and the caking agent is one or more than one of urea, ammonium nitrate and calcium nitrate. The processing technique comprises the steps of crushing, stirring and granulating. The processing technique uses the characteristics of easy decomposition of the adding components in water and difficult decomposition of the caking agent in air, solves the problems that the prior calcium cyanamide is easy to decompose in the air and is not easy to dissolve in the water, effectively exerts the properties of long lasting manurial effect of the calcium cyanamide in soil and slow absorption by crops, has the characteristics of certain weeding and sterilizing effects, and can prevent causing harm to health of human body during use at the same time after the fertilizer is manufactured into granules.
Owner:宁夏大荣化工冶金有限公司
Soil purifying agent and preparation method thereof
ActiveCN104046365AEfficient degradationDisease resistanceAgriculture tools and machinesOther chemical processesEnvironmental resistanceDisease
The invention provides a soil purifying agent and a preparation method thereof and belongs to the field of a soil conditioner. The soil purifying agent comprises the following raw materials in parts by weight: 25-35 parts of active humic acid, 25-35 parts of medical stone, 15-25 parts of zeolite, 7-13 parts of citric acid, 1-3 parts of trace elements, 1-3 parts of chitin and 1-3 parts of calcium cyanamide. The preparation method comprises the step of mixing the raw material according to parts by weight. The soil purifying agent disclosed by the invention, compared with the prior art, has the advantages of simple production, convenience in application, significant effect and environment friendliness; the soil can be well improved and purified and heavy metals, nitrites and pesticide residues in the soil are degraded and adsorbed to create conditions for the growth and development of the root system; the soil purifying agent has the effects in improving the disease resistance of crops, promoting the growth of crops and increasing both production and income and is quick-acting and high in input-output ratio; the soil purifying agent is suitable for being popularized and applied.
Owner:烟台新华生态农业研究所有限公司
Facilities vegetable farm nematocide and its use method
The invention relates to a soil disinfector, in particular to a facility vegetable field eelworm killing agent and an application method thereof to solve the problem of preventing and controlling the root knot nematode. The eelworm killing agent comprises the components in weight percentage: 10 to 20 percent of calcium cyanamide and 80 to 90 percent of organic material. The calcium cyanamide and the organic material are mixed and stirred evenly and mechanically to prepare the eelworm killing agent. The organic material is nutshell powder, sawdust or crop straw. The application method comprises the following steps: the vegetable field is cleaned in summer with high temperature and good sunlight, the eelworm killing agent is broadcasted, the subsoiling and the ridge forming processes are performed, a film is covered, and the irrigation is performed; and after the vegetable field is sealed for 14 to 21 days, the film is disclosed, the soil is plowed, and the vegetable field is air-cured for 5 to 7 days. The facility vegetable field eelworm killing agent and the application method thereof can be applied to prevent and control vegetable root knot nematode for more than 30 vegetable crops such as facility vegetable field cucumber, tomato, kidney bean, melon and celery, have simple technique, sufficient raw materials and low price, and prevent and control the vegetable root knot nematode by more than 70 percent.
Owner:SHENYANG INST OF APPL ECOLOGY CHINESE ACAD OF SCI
Calcium cyanamide oil suspension
ActiveCN102599191AImprove wet spreading performanceImprove permeabilityBiocidePlant growth regulatorsVegetable oilRetention time
The invention discloses a calcium cyanamide oil suspension, the formula of which comprises the following substances by mass percent: 5-30% of calcium cyanamide, 1-5% of wetting dispersant, 1-2.5% of structure regulator, 0.5-2% of stabilizer and the balance of vegetable oil or mineral oil. The calcium cyanamide oil suspension can greatly improve the wetting and spreading performance on fruit branches and permeating performance on branches of calcium cyanamide, improves rainfall erosion resistance, overcomes the shortcomings of fertilizer damage caused by nonuniform coating, low use work efficiency and the like of the original method, prolongs the retention time of the effective ingredients on the branches, reduces the consumption of calcium cyanamide, reduces dust pollution, greatly improves use effect of calcium cyanamide and is convenient for transportation and application. The calcium cyanamide oil suspension can be applied to a dormancy breaking agent of grape, apple, pear, peach cherry and other fruit trees.
Owner:CHEM TECH ACAD OF SHANDONG PROVINCE
Method for preparing aminoguanidin carbonate
InactiveCN101381327AReduce the impactSimple and fast operationOrganic chemistryCalcium cyanamideHydrazine compound
The invention relates to a method for preparing a chemical product, in particular to a method for preparing aminoguanidine bicarbonate. Under the double action of decalcification and pH value adjustment of a dilute sulphuric acid, hydrazine hydrate and calcium cyanamide are added with a cyanamide stabilizer for one-step hydrazinolysis reaction to obtain aminoguanidine water solution, and then ammonium hydrogen carbonate is added into the aminoguanidine water solution to precipitate to produce the aminoguanidine bicarbonate. The method has the advantages of simple process, easy control, steady quality, and high yield.
Owner:HUBEI ZHICHENG CHEM TECH
Reactive type sustained-release fertilizer compounded by nitrification inhibitor/urea formaldehyde and preparation method thereof
ActiveCN101817712ANo dry granulation requiredHigh granulation rateAgriculture gas emission reductionFertilizer mixturesCalcium cyanamideNitrogen
The invention relates to a reactive type sustained-release fertilizer compounded by nitrification inhibitor / urea formaldehyde and a preparation method thereof. The reactive type sustained-release fertilizer mainly comprises the following main raw materials of: the nitrification inhibitor, urea and formaldehyde, wherein the nitrification inhibitor is dicyandiamide or calcium cyanamide. The preparation method comprises the following steps of: according to a raw material proportion, adding the formaldehyde into urea melt or urea solution in proportion to obtain a mixture; simultaneously adding the nitrification inhibitor and a catalyst into the mixture and fully mixing the mixture to prepare slurry which contains sustained-release nitrogen; and then mixing the prepared slurry and components which contain phosphate fertilizer, potassic fertilizer, returned materials and the like to prepare the sustained-release compound fertilizer.
Owner:SHANGHAI RES INST OF CHEM IND
Compound preparation for killing nematodes
ActiveCN104621169ANo risk of excess residuesEfficient killingBiocideNematocidesChlorpyrifosPaecilomyces lilacinus
The invention discloses a compound preparation for killing nematodes. The compound preparation comprises effective components and an additive, wherein the effective components comprise iprodione and an active component, the active component is avermectin B2, carbosulfan, calcium cyanamide, fluopyram, amino-oligosaccharin, chlorpyrifos, imidacloprid, emamectin benzoate, phoxim, lentinan, an oligosaccharide, bacillus cereus, verticillium chlamydosporium or paecilomyces lilacinus, and the effective components account for 1-90% of the total mass of the compound preparation. The active component with good activity and matching rate is selected by carefully and repeatedly selecting and comparing various active components, and the compound preparation containing the carefully selected active component has significant nematode killing and synergistic effects. The nematodes which can be resistant to the single iprodione can not become resistant to the compound preparation.
Owner:山东科大创业生物有限公司
Soil conditioner containing calcium cyanamide and preparation method thereof
The invention relates to a soil conditioner containing calcium cyanamide and a preparation method thereof. The soil conditioner comprises, by weight percentage, 20-60% of carbonaceous organic material, 30-80% of calcium cyanamide, and 5-15% of grease. The preparation method includes: drying the carbonaceous organic material, crushing, well mixing the carbonaceous organic material, the calcium cyanamide and the grease according to the weight percentage, and extruding and granulating. By the preparation method, the problems that the calcium cyanamide particles is easy to resolve in water to generate cyanide ammonia gas causing effective components loss of the calcium cyanamide, and harm to human bodies can be caused by the cyanide ammonia gas can be well solved. When the soil conditioner containing calcium cyanamide is used in soil fumigation, the calcium cyanamide can be reacted with water to generate the cyanide ammonia gas which has evident killing effect to various soil-borne diseases. In the meantime, heat and ammonia generated during fermentation and decomposition process of the carbonaceous organic material can enhance the killing effect of the calcium cyanamide.
Owner:SHENZHEN BATIAN ECOTYPIC ENG
Pseudo-ginseng continuous cropping soil comprehensive treatment method
ActiveCN106304880AEfficient killingPromote growthExcrement fertilisersSoil-working methodsContinuous croppingBacteroides
The invention discloses a pseudo-ginseng continuous cropping soil comprehensive treatment method which comprises the following steps of 1, performing soil fumigation; 2, applying base fertilizer; 3, disinfecting secondarily; 4, top dressing biocontrol bacterium and humate fertilizer. The pseudo-ginseng continuous cropping soil comprehensive treatment method has the beneficial effects that nitrochloroform is utilized as a pseudo-ginseng continuous cropping soil fumigation agent to effectively kill creatures such as fungi, bacteria and insects; calcium cyanamide can slowly release nitrogen fertilizer, reduce soil-borne disease, reduce soil insects, supplement calcium and improve soil; the nitrochloroform and the calcium cyanamide both can be resolved in soil and are free of residue; the biocontrol microorganism can be colonized in the soil and at the roots of the pseudo-ginseng, and root rot pathogenic bacteria of the pseudo-ginseng are prevented from invading by occupying effective ecological niches, generating antibacterial substances and the like; humic acid water-soluble fertilizer can achieve fertilizer synergia, improve the soil and stimulate crop growth. The pseudo-ginseng continuous cropping comprehensive treatment method can enable the emergence rate of pseudo-ginseng seed branches in continuous cropping soil to be 95% or more, and the seedling survival rate to be 80% or more.
Owner:文山苗乡三七科技有限公司
Vegetable waste organic fertilizer and preparation method thereof
InactiveCN101514117BSimple processEasy to implementBio-organic fraction processingOrganic fertiliser preparationCalcium cyanamideResource utilization
Owner:SHENYANG INST OF APPL ECOLOGY CHINESE ACAD OF SCI
Multifunctional soil improved sustained-release environment-friendly fertilizer and preparation method thereof
The invention relates to a multifunctional soil improved sustained-release environment-friendly fertilizer and a preparation method thereof. The sustained-release environment-friendly fertilizer is prepared from the following raw materials in part by weight through adopting the dry extruding and pelleting technology: 16 to 25 parts of urea, 17 to 19 parts of monoammonium phosphate, 25 to 35 parts of potassium sulfate or potassium chloride, 8 to 12 parts of calcium cyanamide and 18 to 30 parts of filler. According to crop production in China and the current situation of soil, scientific proportion is realized, adaptability of the raw materials is high, the adding amount of urea is less than 20 percent, and drying and cooling procedures are not required during preparation. The multifunctional soil improved sustained-release environment-friendly fertilizer has a stable effect and high utilization ratio of nutrients, and can improve soil, promote growth of crops and improve yield and quality of the crops.
Owner:范永强
Soil repair agent and preparation method thereof
The invention discloses a soil repair agent and a preparation method thereof. The soil repair agent comprises the following components in parts by weight: 10-80 parts of calcium cyanamide, 10-70 parts of a medium trace element fertilizer and 1-20 parts of beneficial bacteria, wherein the beneficial bacteria are sealed into capsules; corresponding parts of components are evenly mixed to obtain the soil repair agent. By adopting the soil repair agent disclosed by the invention, the soil pH value is adjusted, malignant bacteria and nematodes in the soil are killed, the soil-borne disease is reduced, the soil environment is repaired, the functions of the soil environment are restored, and especially, a series of vicious circles caused by soil environment degradation can be effectively contained. The soil repair agent is convenient to use, all components can be received by the soil, the soil repair agent is an ideal multifunctional soil environment repair agent with the functions of fertilization and fertility increase, slow release and nitrogen fixation, soil and water conservation, acid-base adjustment, bacterial inhibition and disease control and low price. The soil repair agent is less in equipment investment, simple in preparation process and low in manufacturing cost.
Owner:SHANDONG JINHONGYUAN ECOLOGICAL AGRI
Preparation method for organic fertilizer for preventing and treating secondary salinization of solar greenhouse vegetable field
InactiveCN105541489ASolve physical diseasesSolve the problems of harmful pests and diseases affecting the healthy growth of vegetablesBio-organic fraction processingAlkali orthophosphate fertiliserAnimal husbandryWilting
The invention discloses a preparation method for organic fertilizer for preventing and treating secondary salinization of a solar greenhouse vegetable field. The preparation method comprises the following steps: (1), mixing cow dung or a mixture of the cow dung with one or more of goat manure, chicken manure, pig manure, straws and waste tobacco shreds according to the volume ratio of 1:1 and fermenting, thereby obtaining a material A; (2), preparing earthworm cast after cow dung is fermented; (3), crushing crop straws, adding the crushed straws to chicken manure or pig manure, and enzyme microorganism, mixing uniformly, building stacks and fermenting, thereby obtaining a material D; (4), mixing the materials A, C and D to obtain a material E; (5), mixing the material E, calcium cyanamide, diammonium phosphate, zinc sulfate and sodium borate, thereby obtaining finished products organic fertilizer. According to the preparation method for the organic fertilizer for preventing and treating the secondary salinization of the solar greenhouse vegetable field, wastes of agriculture and animal husbandry industries are utilized as main materials and match natural antibacterial materials, such as lime nitrogen, in accompany with secondary and trace elements, such as calcium, boron and zinc, so as to solve problems of vegetable wilting and soil harmful bacteria caused by the salinization of the solar greenhouse vegetable field. Compared with application of common fertilizer, application of the prepared organic fertilizer has the advantages that the fertilization costs are reduced and the yield and quality of vegetables are improved.
Owner:HEBEI AGRICULTURAL UNIV.
Production method and device of calcium cyanamide
InactiveCN105217655ASmall fluctuationSmall temperature fluctuationsCyanamideGranularityCalcium cyanamide
The invention relates to a production method and device of calcium cyanamide. The method comprises the steps that smashed calcium carbide, catalysts and melted calcium cyanamide are added into corresponding feed bins; the smashed calcium carbide and catalysts are ball-milled to be with required granularity according to the weight proportion and sent into the calcium carbide bin; after the melted calcium cyanamide is ball-milled to be with the granularity ranging from 0.01 mm to 30 mm, the calcium cyanamide is sent to the melted calcium cyanamide bin; the materials in the calcium carbide bin and melted calcium cyanamide bin are sent to a rotary nitriding furnace according to proportions. The device comprises the rotary nitriding furnace, a feeding device installed on the furnace end, a nitrogen input device of a furnace body reaction zone and a cooling device of a furnace body cooling zone, a feed screw conveyor is installed on the furnace end, a heating device is installed on the nitrogen input device of the furnace body reaction zone, and a cooling device is arranged on the furnace body cooling zone. The production method and device of the calcium cyanamide have the advantages that the reaction temperature in the furnace can be adjusted in time, the temperature in the furnace is small in fluctuation, and the discharging and cooling effects are good.
Owner:BEILITE CHEM CO LTD
Comprehensive preventing and treating fertilizer for soil-borne diseases and application method of comprehensive preventing and treating fertilizer
ActiveCN105110893AImprove aggregate structureImprove disease resistanceFertilising methodsFertilizer mixturesDiseasePlant disease
The invention discloses a comprehensive preventing and treating fertilizer for soil-borne diseases. The fertilizer comprises a bulk blend fertilizer and an ecological organic fertilizer, wherein raw materials of the bulk blend fertilizer comprise the following components in percentage by weight: 20-50% of calcium cyanamide, 10-40% of a calcium magnesium phosphate fertilizer, 5-30% of diammonium phosphate and 10-40% of large particle red potassium, totally 100%; and raw materials of the ecological organic fertilizer comprises the following components in percentage by weight: 0.5-3% of a fungicide, 30-70% of humic acid and 20-70% of amino acids, totally 100%. According to the fertilizer disclosed by the invention, soil is no longer invaded by harmful pathogenic bacteria and the fertilizer can provide nutrition to crops and is free of residues and green and environmental-friendly. Moreover, the fertilizer not only can provide organic matters, improve the granular structure of soil and provide a good environment for crops and microorganisms, but also supplements beneficial microorganisms, and the preventing and treating effect is more lasting.
Owner:SHENZHEN BATIAN ECOTYPIC ENG +1
Yield-increasing water retention fertilizer special for hickory nuts
InactiveCN106365817AImprove soil fertilityImproves soil fertility and increases pecan yieldsCalcareous fertilisersMagnesium fertilisersSodium BentoniteSlag
The invention discloses a yield-increasing water retention fertilizer special for hickory nuts. The fertilizer is prepared from, by weight, 50-150 parts of organic fertilizer, 5-15 parts of steel slag, 5-15 parts of urea, 15-25 parts of diammonium phosphate, 5-10 parts of ammonium bicarbonate, 3-15 parts of potassium sulfate, 2-10 parts of magnesium sulfate, 10-20 parts of calcium cyanamide, 3-10 parts of calcium sulfate, 1-10 parts of calcium oxide, 4-8 parts of microelements, 0.1-1 part of gamma-polyglutamic acid, 0.3-1.5 parts of vermiculite powder, 0.5-1.5 parts of bentonite, 5-15 parts of ardealite, 0.05-0.3 part of malic acid, 0.1-0.5 part of phosphate solubilizing bacteria, 0.5-3 parts of glucose, 2-5 parts of sodium potassium tartrate tetrahydrate, 2-5 parts of rare-earth salt and 1-5 parts of water-retaining agent. The yield-increasing water retention fertilizer special for the hickory nuts is reasonable in formula, comprehensive and balanced in nutrition, high in water retaining ability and capable of increasing the yield of the hickory nuts, improving quality and improving physical and chemical properties of soil.
Owner:ANHUI SIERTE FERTILIZER IND
Nitrogen synergistic agent for intensive vegetable filed and preparation thereof
InactiveCN101372429ASimple processEasy to implementFertilizer mixturesLand productivityCalcium cyanamide
The invention relates to a soil fertilizer synergist, in particular to a nitrogen synergist applied to protected horticultural vegetable fields and a preparation method thereof. The components by weight percentage are 10-30% of calcium cyanamide, 30-50% of zeolite powder and 30-50% of lignite. The preparation method comprises the following steps: the 10-30% of calcium cyanamide and the 30-50% of zeolite powder are mechanically and evenly mixed to obtain a mixture, and then the mixture is added with the 30-50% of lignite and mechanically mixed evenly, thus obtaining the nitrogen synergist. The preparation method is simple and pollution-free, and the nitrogen synergist is an organic and inorganic combined nitrogen synergist which has the effects of combining the slow release and quick release of nutrients, slowly releasing fertilizer nutrients, improving the utilization rate of the fertilizer, reducing the amount of chemical fertilizers used, improving the physical and chemical properties of soil and improving the productivity of the soil.
Owner:SHENYANG INST OF APPLIED ECOLOGY - CHINESE ACAD OF SCI
Ca/Fe/GO/biomass charcoal, carbon-based slow-release fertilizer special for corn and application of carbon-based slow-release fertilizer
InactiveCN109809926AImprove adhesionFine grainClimate change adaptationAgriculture gas emission reductionSodium BentoniteSlag
The invention provides Ca / Fe / GO / biomass charcoal, carbon-based slow-release fertilizer special for corn and application of the carbon-based slow-release fertilizer, and belongs to the technical fieldof fertilizer. The Ca / Fe / GO / biomass charcoal is prepared by the following steps: mixing biomass raw material slag powder with calcium chloride, ferric chloride and graphene oxide, carbonizing the mixed material at 100 to 120 DEG C for 1 to 2hours and at 500 to 600 DEG C for 4 to 6 hours in sequence, and washing the carbonized product to be neutral to obtain modified biomass charcoal. The carbon-based slow-release fertilizer special for the corn is prepared from the following components in parts by weight: 15 to 20 parts of the modified biomass charcoal, 5 to 8 parts of calcium cyanamide, 35 to40 parts of superphosphate, 20 to 30 parts of potassium salt, 6 to 9 parts of plant ash, 5 to 10 parts of bentonite, 1 to 5 parts of calcium sulfate and 3 to 7 parts of a mushroom dreg composted material. The slow-release fertilizer provided by the invention is not easily broken, and the fertilizer effect is prolonged; when the slow-release fertilizer is applied in a corn planting process, the yield is increased by 5% or above and the soil structure can be improved.
Owner:QINGDAO AGRI UNIV
High nitrogen compound fertilizer and preparation method thereof
InactiveCN106316532AAvoid churnAvoid pollutionFertiliser formsAmmonium salt fertilisersWater qualityPotassium
The invention relates to a high nitrogen compound fertilizer and a preparation method thereof. The high nitrogen compound fertilizer is prepared from, by weight, 5-10 parts of ammonium sulfate, 2-4 parts of ammonium chloride, 3-5 parts of ammonium bicarbonate, 5-10 parts of urea, 2-4 parts of calcium cyanamide, 5-7 parts of potassium magnesium fertilizer, 8-10 parts of plant ash, and 70-80 parts of straw fermentation substance. The high nitrogen compound fertilizer is prepared into granular fertilizer, wherein the granular fertilizer is divided into an inner layer and an outer layer, the outer layer comprises straw fermentation substance; ammonium sulfate, ammonium chloride, ammonium bicarbonate, urea, calcium cyanamide, potassium magnesium fertilizer and plant ash are located in the inner layer. The high nitrogen compound fertilizer can avoid the nutrient loss of the fertilizer due to irrigation, thereby ensuring the nutrients in cultivation, at the same time, avoiding the pollution of downstream water quality.
Owner:PINGLE AGRI CHEM PLANT GUANGXI PROV
Farm for killing harm-germina and pests in soil, its preparing technology and using method
InactiveCN1977614AEfficient killingPlay a role in preventionBiocideContaminated soil reclamationGrowth plantFungicide
The present invention relates to a pesticide, in particular, it relates to a pesticide for killing injurious germ and pest in soil, its preparation process and application method. Said pesticide contains (by wt%) 15-70% of calcium cyanamide, 10-75% of calcium oxide and the rest is impurity. Its preparation method includes the following steps: placing calcium carbide, calcium cyanamide and additive into a reaction furnace, introducing nitrogen gas at 1000-1100 deg.C to make azotizing reaction for 18-24 hr so as to obtain the invented finished product. Said pesticide can be used as fungicide, insecticide, weedicide, nematocide and plant growth regulator, etc.
Owner:宁夏大荣化工冶金有限公司
Preservation solution for fresh amnion, preservation method for fresh amnion and application of fresh amnion
The invention provides a preservation solution for a fresh amnion. The preservation solution per 1,000ml is prepared from the following ingredients: 30g to 50g of DMEM culture medium, 20g to 30g of chondroitin sulfate, 10g to 20g of low molecular dextran, 5ml to 10ml of sodium pyruvate, 10ml to 20ml of non-essential amino acids, 5ml to 10ml of gibberellin, 10ml to 20ml of HEPES, 10g to 20g of pentaerythritol, 2g to 3g of ammonium chloride, 3ml to 5ml of DMPU, 15g to 20g of nano-silica, 8ml to 10ml of carotene, 12ml to 15ml of indoleacetic acid, 5g to 6g of calcium cyanamide, 3g to 5g of hydrocortisone and the balance of water for injection. By using the preservation solution provided by the invention, the fresh amnion can be preserved for 1 to 2 weeks at normal temperature and can be preserved for 1 year or more at the temperature of 4 DEG C, and the use is convenient; the form of the amnion is not changed, and the survival rate of cell active factors contained in the amnion is relatively high.
Owner:JIANGXI RUIJI BIOTECH CO LTD
Nitrogen fertilizer combined inhibiting agent and its uses
Disclosed is a nitrogenous fertilizer inhibiting agent and the use, which comprises 1-50wt% of dicyandiamide and 50-99wt% of calcium cyanamide, the inhibiting agent can be bonded with N-containing inorganic fertilizer such as ammonium phosphate, ammonium nitrate, ammonia sulfate, urea, liquid ammonia for synergic effect to increase nitrogen utilization coefficient.
Owner:SHENYANG INST OF APPLIED ECOLOGY - CHINESE ACAD OF SCI
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