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321results about How to "Increase cation exchange capacity" patented technology

Fresh-keeping packaging material and products thereof

The invention relates to a fresh-keeping packaging material and products thereof, belonging to the technical field of packaging. The invention has the technical scheme that a certain proportion of mineral micropowder of kieselguhr or sepiolite or medical stone or bentonite or tephros or perlite and the like is doped into plastics of PE, PP, PVC and the like and paper pulp, and then the mixture is made into thin films, packaging paper or packaging bags or packaging boxes or packaging cases, trays and the like; the characteristics of dispersity, air permeability, adsorbability, far infrared ray and positive and negative ion function and the like of the mineral micropowder are utilized to enable the packaging material to generate micropores, and therefore, the packaging material has a certain air permeability and adsorbability or generates positive and negative ions or far infrared rays; gas and a small quantity of moisture which are generated from packaged articles are discharged from the micropores, and harmful gas is absorbed and transferred, and thereby, the heat value of the packaged articles can be effectively lowered; microbes are killed or restrained, thereby meeting the demands of keeping fresh of live and fresh food and prolonging storage life.
Owner:钟爱民

Special saline and alkaline land organic/inorganic compounded fertilizer as well as preparation method and application thereof

The invention discloses a special saline and alkaline land organic / inorganic compounded fertilizer as well as a preparation method and application thereof. The compounded fertilizer comprises raw materials, namely a mixture 1 and a mixture 2, wherein the weight ratio of the mixture 1 to the mixture 2 is (1.5-3.5):1; the mixture 1 comprises composite charcoal, a biological organic fertilizer, humicacid substances, furfural residues, an improvement preparation and inorganic nutrients which are mixed according to a certain ratio; the mixture 2 comprises a biological organic fertilizer, humic acid substances, furfural residues and water retention aids which are mixed according to a certain ratio. By adopting the product disclosed by the invention, soil structures can be improved, soil porosity can be improved, soil bulk density can be reduced, contents of organic matters in soil can be increased, the cation exchange amount of the soil can be increased, and the pH value of the soil and thetotal amount of water soluble salts in the soil can be reduced. In addition, the fertilizer has functions of slowly releasing acid substances and nutrients, is capable of activating soil, reducing immobilization of soil upon nutrients and increasing the utilization rate of the nutrients, is capable of continuously and stably improving soil, is free of adverse influence upon environments and plants, and is ecological and environmentally friendly.
Owner:湖南慧谷农业生态研究院有限公司

Organic-inorganic improvement fertilizer for saline-alkali soil and preparation method thereof

The invention discloses an organic-inorganic improvement fertilizer for saline-alkali soil and a preparation method thereof. The organic-inorganic improvement fertilizer is prepared from, 20-30 parts of bentonite, 20-30 parts of zeolite, 20-30 parts of flue gas desulfurization gypsum, 10-20 parts of dehydrated sludge, 20-30 parts of humic acid, 10-20 parts of coal ash, 20-30 parts of ardealite, 10-20 parts of peat, 10-20 parts of straw meal, 10-20 parts of animal waste, 2-8 parts of microbial inoculation bacteria and 2-5 parts of emulsified asphalt. The invention further provides a preparation method of the organic-inorganic improvement fertilizer for saline-alkali soil. According to the organic-inorganic improvement fertilizer, the physicochemical character of soil can be improved, soil permeability and moisture and fertilizer preservation can be improved, the soil ion exchange rate can be improved, the PH value can be buffered, the chemical fertilizer consumption can be reduced, the crop yield can be improved, the product quality can be improved, the soil improvement effect can be improved, and the soil improvement cycle can be shortened.
Owner:SHANDONG SUNWAY LANDSCAPE TECH

Improvement method of saline alkali soil in North China areas

The invention provides an improvement method of saline alkali soil in North China areas. The method lies in that a soil improvement agent with an application rate of 300 to 400 kg / hm<2> is applied in saline alkali soil, and the applied soil improvement agent comprises the following components in parts by weight: 45 to 50 parts of a mixture of humic acid and phospho gypsum, 8 to 10 parts of natural zeolite, 10 to 15 parts of straw powder, 15 to 20 parts of wormcast, 15 to 25 parts of a mixture of spartina alterniflora and sheep manure and 5 to 8 parts of diatomaceous earth. According to the improvement method of the saline alkali soil in North China areas, the PH value of the saline alkali soil treated through adopting the method is reduced by 0.85 above, the organic content of the soil is increased by 60% to 70%, and the crop yield is increased by 8.5% to 17.2%.
Owner:JIANGSU DONGZHU LANDSCAPE CONSTR

Environmental friend type multifunction soil improver and its manufacturing method

This invention relates to a environmental friendly multifunctional soil conditioner, and it prepared by mixed culture fermentation with composting product heaping and retting by vegetal organic offal, such as, dry branches and fallen leaves, traditional medicine gruffs and coconut chaff, natural mineral material (maifanshi, bentonite, zeolite), ammonium 2, 4-dinitrophenolate, organic amendment (Acid precipitation of lignin, glutamate dregs and furfurol dregs) and micro-organism strain. This soil conditioner will outstandingly improve physical and chemical characteristic of soil and promote the formation of the soil coacervate. It can also neutralize acid base nature of the soil and improve the cation exchange capacity of the soil. It can also outstandingly improve the growth and reproductive of the crop and the availability of the fertilizer. It has the merits of using reproducible material, changing waste into resources, obviously ecological advantage and economic returns.
Owner:广州市园林科学研究所

Natural multifunctional mineral compound fertilizer

A natural multi-function mineral complex fertilizer is characterized in that the fertilizer is made from the raw materials with the following weight percentages: 28-33% of urea, 15-25% of monoammonium, 12-17% of potassium fertilizer, 30-45% of attapulgite powder and 5-10% of humic acid by the preparation method of the conventional fertilizer. The attapulgite powder is a nano-grade porous nonmetallic mineral substance with physical properties of strong adsorbability, cation exchange property, large specific surface area, and the like, wherein, the water absorption rate is equal to or more than 60%, the cation exchange capacity is equal to or more than 20mmol / 100g, and the specific surface area is equal to or more than 120m<2> / g; meanwhile, the attapulgite powder is rich in various nutrient elements of potassium, phosphor, calcium, magnesium, sulfur, iron, copper, zinc, molybdenum, manganese, boron, iodine, selenium, and the like; the humic acid can inhibit the activities of urase, and slow down the decomposition of the urea, and the complex compound produced can gradually decompose and release nitrogen, thus prolonging the fertilizer efficiency. The natural multi-function mineral complex fertilizer has the advantages of being applicable to all crops, and realizes the aims of reducing the fertilizer consumption, enhancing the utilization ratio of the chemical fertilizer, reducing agricultural production cost, increasing the yield and quality of farm products, and improving the soil.
Owner:薛立成

Preparation method and application of modified biochar composite modified with magnetic hydrotalcite

The invention discloses a preparation method and an application of a modified biochar composite modified with magnetic hydrotalcite. According to the composite, modified biochar is taken as a substrate, magnetic Ca / Al hydrotalcite is supported on the substrate surface, the biomass raw materials are widely sourced, non-toxic and cheap, biomass is pre-modified with alkali and subjected to high-temperature pyrolysis and Mg<2+> supporting modification, so that surface functional groups of the biomass are activated, content of the surface functional groups is increased, hydrophilicity is improved,and ammonia nitrogen adsorption efficiency of the biochar is increased greatly; further by means of compositing and synergy of the modified biochar and the magnetic hydrotalcite, the adsorption efficiency of the composite is increased greatly, a magnetic core can be recycled repeatedly, so that cost is reduced, and secondary pollution to the environment is reduced.
Owner:郗丹

Ozonized biochar compositions and methods of making and using the same

Ozonized biochar compositions and methods for creating advanced hydrophilic biochar materials are provided with higher cation exchange capacity, optimized pH, improved wettability, and free of potential toxic components. These ozonized biochar compositions are used as filtration materials, as biochar soil additives and as carbon sequestration agents to help control climate change for energy and environmental sustainability on Earth.
Owner:LEE JAMES WEIFU

Method assembling straw biochar with microbe bacteria fertilizer so as to improve saline land

ActiveCN105123008AIncrease carbon sequestrationEmission reductionSoil-working methodsLand improvementMicroorganism
A method assembling straw biochar with microbe bacteria fertilizer so as to improve saline land relates to the saline land improvement method, and aims to solve the technical problems that an existing saline land cannot plant crops or the crops output is low; the method comprises the following steps: composting and fermenting an organic fertilizer so as to obtain decomposed organic fertilizer, uniformly mixing the straw biochar, the microbe bacteria fertilizer and the decomposed organic fertilizer according to weight ratio: 1-12:1:10-20, and piling up the mixture for preparation; uniformly throwing the straw biochar, the microbe bacteria fertilizer and the decomposed organic fertilizer mixing improvement material on the soil surface 0-2 days before soil working, and appilication amount is 1350kg / mu; doing intersect rotary tillage for 1-2 times after fertilizer application, rotary tillage depth is 12-15cm, immediately suppressing the soil after rotary tillage, and then sowing is carried out. The method is simple, modifiers are straw biochar and manure, the materials are easy to get, so cost is low; the improved saline land is obvious in effect; the method is suitable for saline land improvement.
Owner:上海孚祥生态环保科技股份有限公司

Special carbon-based slow release nitrogen fertilizer for vegetable fields and preparation method thereof

The invention relates to a special carbon-based slow release nitrogen fertilizer for vegetable fields, which aims to solve the technical problem that the nutrient release of the existing nitrogen fertilizer is overquick. The slow release nitrogen fertilizer is prepared by taking 95-100 parts of nitrogen loaded biochar, 1-5 parts of attapulgite and 2-3 parts of calcium lignosulphonate as raw materials, stirring, drying, granulating the raw materials and the like. The special carbon-based slow release nitrogen fertilizer and the preparation method thereof disclosed by the invention have the positive beneficial effects that the nitrogen nutrient release duration is prolonged, and the coupling between nutrient release and crop demands is high, so that the leaching loss of nitrogen nutrients is lower, and the fertilizer utilization rate is improved; the slow release nitrogen fertilizer also has a function of improving the physical and chemical properties of soil of vegetable fields, and can increase the organic matter of soils and the cation exchange capacity and granular structure of soil, prevent the soil from hardening, and improve the hydrothermal condition of soil; used raw materials are wide in sources, cheap and easily available, and therefore, the slow release nitrogen fertilizer is low in production cost, and beneficial to realizing the ecological high-valued utilization of agricultural wastes.
Owner:AGRO ENVIRONMENTAL PROTECTION INST OF MIN OF AGRI

Method for synthesizing zeolite by circulating fluidized-bed coal ash and bottom ash

The invention discloses a method for synthesizing zeolite by circulating fluidized-bed coal ash and bottom ash. The method comprises the following steps of: carrying out decarburization treatment on the coal ash by a screening machine and mixing the treated coal ash with the bottom ash which is milled by a ball mill; adding alkali liquor in a liquid-solid weight ratio of (5:1) to (9:1); reacting for 1-2 hours under the condition of 50r / min-70r / min by stirring, and the reaction temperature being 95 DEG C to 100 DEG C, and crystallizing by stirring for 4-6 hours at the speed of 20 revolutions / minute to 40 revolutions / minute and the crystallizing reaction being 95 DEG C to 100 DEG C; washing and crystallizing until the pH value is 9-10, dehydrating and filtering, and drying for 3-5 hours under the condition of 85 DEG C to 100 DEG C to a dried zeolite product with the content of 76w%-81w%. According to the method for synthesizing zeolite by circulating fluidized-bed coal ash and bottom ash disclosed by the invention, the synthesis material coal ash is free of any roasting pre-treatment and calcining pre-treatment; the synthesis process is a hydro-thermal synthesis process under normal pressure; and the obtained zeolite has the characteristics of being high in cation exchange capacity, high in specific surface area and the like.
Owner:SICHUAN COLLEGE OF ARCHITECTURAL TECH

Heavy metal polluted soil repairing agent with high content of biocarbon and humus and application method thereof

The invention discloses a heavy metal polluted soil repairing agent with a high content of biocarbon and humus, and an application method thereof. The repairing agent is composed one or more of kitchen garbage, blue algae, livestock and poultry manure, straw, wood chip, rice husk, plant wastes, dead animal due to diseases and residual body of livestock and poultry. The raw materials mentioned above is subjected to steps of impurity removing, grinding, and proportioning, and then the mixture is subjected to a sub-critical water treatment for 90 to 150 minutes at a temperature of 180 to 360 DEG C under a pressure of 1.8 to 5.8 MPa so as to obtain the tail product; wherein the biocarbon content accounts for not less than 45% of the dry substrate, the total nutrient content is 4 to 6%, the amino acid content is not less than 20%, the humus content is not less than 40%, the trace element content is not less than 0.5%, and the pH value of the repairing agent is 5 to 7. The provided repairing agent can be used to repair polluted soil, and can also be used to treat the soil secondary salinization and hardened soil caused by over application of chemical fertilizer and pesticides. The organic solid waste pollutants are processed to produce the repairing agent, thus the environment pollution problem is solved, and at the same time, the biocarbon and humus in the tail product can repair and improve the soil polluted by metals, chemical fertilizers, and pesticides.
Owner:上海国环生态科技股份有限公司

Method for preparing active carbon with high acid group content by mixing excess sludge and corn cobs

The invention relates to a method for preparing active carbon with high acid group content by using excess sludge in an urban sewage treatment plant and corn cobs, which comprises the following steps: impregnating the dried and ground sludge and corn cobs for a period of time by using a given amount of zinc chloride solution; after drying, putting the mixture into a muffle furnace for carbonization and activation at a certain temperature; and finally, washing and drying to obtain an excess sludge and corn cob mixture-based active carbon. The prepared active carbon has good adsorption property and high acid group content. The active carbon prepared by the method has the characteristics of cation exchange and strong hydrophilcity, and easily absorbs polar substances and metal ions.
Owner:BEIJING FORESTRY UNIVERSITY

Modified coal ash used for treating ammonia nitrogen waste water and preparation method thereof

The invention relates to modified coal ash used for treating ammonia nitrogen waste water, which is prepared by the following steps of: calcining NaOH and coal ash at a low temperature after NaOH and coal ash are uniformly mixed in proportion, cooling, grinding and sieving, then adding 1-5 times of water by weight, mixing, stirring, heating to the temperature of 70 DEG C and stopping stirring, gelling for 1.5-2 hours at constant temperature, then heating to the temperature of 100 DEG C, crystallizing for 3-4 hours at constant temperature, carrying out suction filtering, washing to be neutral with water, drying, cooling and then grinding and sieving, thus the modified coal ash is obtained. In the invention, NaOH low temperature calcining hydrothermal synthesis is adopted to modify the coal ash, the physical structure of the coal ash is destroyed, the modification time is shortened and a new zeolite mineral phase is generated under the condition of low alkali addition amount, the specific area of the coal ash is increased, and the cation exchange performance of the coal ash is improved. The modified coal ash provided by the invention is used for treating the ammonia nitrogen waste water, and the removing effect is obvious. By adopting the modified coal ash provided by the invention, wastes are treated with wastes, the resource utilization of wastes is realized, and the utilization factor of the coal ash is improved.
Owner:SHANXI UNIV

Adsorption material for treating phosphorus wastewater and use thereof

The invention relates to an adsorption material for treating phosphorus wastewater and use thereof. The adsorption material consists, by mass percent, of 50 to 70% of flyash zeolite and 30% to 50% of natural zeolite and is prepared by homogenously mixing the flyash zeolite with the natural zeolite based on the above proportion, the above resultant adsorption material is added, with the mass ratio of phosphorus to the adsorption material being 1: 100 to 200, to phosphorus wastewater with the pH from 3 to 10 and the phosphorus concentration from 0 to 150mg / l in order to treat the phosphorus wastewater, the contact time is 1 hour, the removal rate of phosphorus is larger than 90%, and the pH of zeolite subsequent to treatment is close to be neutral. The flyash zeolite resulting from modified synthesis in the invention not only has significant phosphorus adsorption effect, but can also realize the effective utilization of wastes to reduce the pollution of flyash to environment. Mutual combination of the flyash zeolite and the natural zeolite results in synergistic action for phosphorus adsorption, reducing the content of phosphorus in wastewater effectually. Therefore, the adsorption material of the invention for treating phosphorus wastewater has the advantages that the adsorption capacity is high, the utilization of wastes is favorable for environmental protection and the like.
Owner:HUBEI FORBON TECH

Method for dehydrating and conditioning sludge and preparing raw materials of slow-release fertilizer

The invention relates to a method for preparing a slow-release fertilizer, in particular provides a method for dehydrating and conditioning sludge and preparing raw materials of the slow-release fertilizer. The method particularly comprises the following steps of: adding water-absorbing clay minerals, a mixture of water-absorbing macromolecular compounds and plant residues to dehydrated sludge ineach cubic meter, composting and fermenting for 10-15 days according to a conventional method, sequentially adding compounds formed by phosphoric acid radicals and ammonium ions and magnesium-containing alkaline substances in fermentation products, and mixing uniformly to obtain the raw materials for producing a slow-release type organic-inorganic compound fertilizer. The method for dehydrating and conditioning the sludge and preparing raw materials of the slow-release fertilizer, disclosed by the invention, is suitable for large-scale sludge dehydration treatment and also provides high-nutrient raw materials for the manufacturing of the slow-release fertilizer.
Owner:INST OF AGRI RESOURCES & ENVIRONMENT GUANGDONG ACADEMY OF AGRI SCI

Preparation method of compound seaweed fertilizer

The invention belongs to the field of seaweed fertilizer and particularly relates to a preparation method of compound seaweed fertilizer. The preparation method comprises the processes of pretreatment, enzymolysis, microbiological treatment, drying and the like. According to the preparation method provided by the invention, fresh raw materials are treated in a low-temperature frozen-breaking manner, so that the active ingredients of seaweed can be effectively protected and the prepared compound seaweed fertilizer can be full of nutriments; by adoption of such a manner that a plurality of enzymes are combined, the macro-molecular sugar and protein ingredients in a seaweed homogenate can be effectively degraded and the extraction efficiency of soluble matters in the seaweed can be improved; and the compound seaweed fertilizer is prepared by utilizing enzymolysis compound microorganisms through fermentation, so that the active ingredients of the seaweed can be retained to the greatest extent, the efficacy of the compound seaweed fertilizer can be improved, and the relatively good application prospect can be achieved.
Owner:YANTAI INST OF COASTAL ZONE RES CHINESE ACAD OF SCI

Cryptomelane-based composite metal element catalyst, and preparation method and application thereof

The invention provides a cryptomelane-based composite metal element catalyst, and a preparation method and application thereof. The cryptomelane-based composite metal element catalyst is prepared from acryptomelane-containing manganese oxide molecular sieve and a doping metal element, wherein the doping metal element enters a cryptomelane type manganese oxidemolecular sieve framework; the mole ratio of the manganese element in the cryptomelane type manganese oxidemolecular sieve to the doping metal element is (100 to 1) to (10 to 1); the cryptomelane type manganese oxide molecular sieve is obtained through the reaction of septivalence manganese and bivalent manganese; the mole ratio of the septivalence manganese to the bivalent manganese is (2 to 1) to (0.5 to 1). The cryptomelane-based composite metal element catalyst provided by the invention has high catalytic activity, and the usage of precious metal is not needed or reduced, so that the cost of the catalyst is greatly reduced; the catalyst has no need to be activated by utilizing hydrogen reduction, is simple in usage conditions, and can be widely applied in purification treatment of benzene-containing waste gas discharged by fixed sources such as a smelting plant, an oil refinery plant and a chemical plant.
Owner:INST OF URBAN ENVIRONMENT CHINESE ACAD OF SCI +1

Special fertilizer used for assisting yield increase of paddy rice

The invention discloses a special fertilizer used for assisting yield increase of paddy rice. The special fertilizer comprises the following raw materials: a rapeseed cake, fermented pig manure, urea, ammonium sulfate, calcium nitrate, diammonium phosphate, potassium chloride, magnesium sulfate, zinc sulfate, sodium selenate, ammonium molybdate, copper sulphate and a soil conditioner. The soil conditioner comprises the following components: bentonite, perlite, citric acid, oxalic acid, nitrohumic acid, a phosphate-dissolving bacterium, dicyandiamide, N-butylthiophosphoryl triamide, polyethylene glycol and acrylamide. The special fertilizer used for assisting yield increase of paddy rice in the invention has a scientific formula and reasonable nutrients; and when applied in plantation of paddy rice, the special fertilizer can improve the utilization rate of fertilizers, resist lodging and insect attack, increase the output of paddy rice, improve the quality of paddy rice, enhance physical and chemical properties of soil and prevent soil hardening.
Owner:广德市利民农田水利专业合作社

Preparation method of brick for animal licking containing natural mineral, urea and molasses

The invention discloses a preparation method of brick for animal licking containing natural mineral, urea and molasses, which comprises proportioning, stirring, press forming, naturally airing and packaging. The charge mixture comprises urea, molasses, table salt, natural mineral additive and water. The product comprises nonprotein nitrogen compound, calcium, phosphor, sodium, chlorine, ferrum, copper, manganese, zinc, selenium and carbohydrate for supplying energy.
Owner:淮安神力特矿业有限公司

Ozonized biochar: phosphorus sustainability and sand soilization

Surface-oxygenated biochar compositions and sonication-ozonization methods create advanced hydrophilic biochar materials having higher cation exchange capacity, optimized pH, improved wettability, and toxin free components. These sonicated and ozonized biochar compositions are used as filtration materials for clean water and air, as phosphorus solubilizing reagents to mix with phosphate rock materials to make a slow-releasing phosphate fertilizer, as biochar soil additives to help solubilize phosphorus and reduce phosphorus fertilizer additions required to achieve desired soil phosphorus activity, crop uptake, and yield goals, as sand soilization reagents by utilizing their liquid gel-forming activity in the spaces among sand particles to retain water and nutrients and hold the sand particles together, as plant growth stimulants by using the humic acids-like surface-oxygenated biochar substances at a proper ppm concentration and as carbon sequestration agents to help control climate change for energy and environmental sustainability on Earth.
Owner:LEE JAMES WEIFU

Preparation method of biochar-like matter used for heavy metal contaminated soil repair

The invention relates to a preparation method of a biochar-like matter used for heavy metal contaminated soil repair, the method includes pretreatment of raw materials, mixed inoculation of raw material bacteria liquid, low temperature pyrolysis and charring, crushing, screening and other steps, the biochar-like matter is prepared from one or more of plant and animal residues, food market garbage or kitchen wet waste as the raw materials, and compared with the existing technology such as replacement, electrokinetic remediation, complexation leaching, steam extraction, oxidation reduction electric mechanical repair and the like, the biochar-like matter adopts in-situ remediation technology, and has the advantages of low manufacturing and implementation cost, stability and the like.
Owner:上海玉仑应用微生物研究所

Heavy metal passivator for simultaneous passivation of farmland soil cadmium, lead and zinc and preparation method

The present invention relates to a heavy metal passivator for simultaneous passivation of farmland soil cadmium, lead and zinc, the heavy metal passivator comprises the following components and raw materials by weight: 15 to 25% of weathered coal, 15 to 30% of calcined powder, 15 to 25% of iron pyrite slag, 10 to 15% of activated carbon and 10-15% of calcium magnesium phosphate; the weathered coal and the activated carbon and the calcined powder and the iron pyrite slag are first mixed, stirred evenly, then mixed with the calcium magnesium phosphate, and fully stirred for evenly mixing to obtain the heavy metal passivator for simultaneous passivation of farmland soil cadmium, lead and zinc. The heavy metal passivator for simultaneous passivation of farmland soil cadmium, lead and zinc can make heavy metal pollutants stable in a long term so as to reduce heavy metal mobility and weaken heavy metal hazards in soil, and can effectively passivate and stabilize heavy metals in the soil, material dosing sequence can be quickly combined with the heavy metals, the reaction is more fully, and the heavy metal stabilizing effect is better.
Owner:INST OF AGRI RESOURCES & ENVIRONMENT SHANDONG ACADEMY OF AGRI SCI

Desertification soil improver as well as preparation method and application thereof

The invention discloses a desertification soil improver as well as a preparation method and application thereof. The desertification soil improver disclosed by the invention is prepared from the following substances in parts by weight: 20-40 parts of bentonite, 50-70 parts of straw, 0.5-1.5 parts of urea, 0.2 part of a microbial agent and 8-9 parts of a vitamin B6 solution. On the basis that the straw and the bentonite are adopted as main raw materials, the vitamin B6, the urea and the microbial agent are compounded and processed into the granulized soil improver, granular structures of desertification soil are increased, soil can be fertilized, the water and fertilizer retention capability of the soil can be improved, in addition, plant growth can be promoted, vegetational cover of the desertification soil is improved, convenience can be brought to production and transportation, and effects of efficient utilization of agricultural wastes and desertification soil improvement and treatment can be achieved.
Owner:INST OF AGRI RESOURCES & REGIONAL PLANNING CHINESE ACADEMY OF AGRI SCI +1

Saline-alkali soil conditioner as well as preparation method and application thereof

The invention relates to a saline-alkali soil conditioner, prepared from the following components by mass percent: 45-65% of desulfurized gypsum, 25-35% of humic acid and 5-30% of citric acid. The invention also relates to a preparation method and the application of the saline-alkali soil conditioner. The saline-alkali soil conditioner is prepared by blending the low-cost raw materials according to the specific proportion, is simple and convenient to use, and is capable of adjusting the pH of soil, increasing soil organic matters, promoting the formation of a soil aggregate structure and improving the permeability of the soil so as to comprehensively improve the saline-alkali soil from multiple points of view; therefore, the saline-alkali soil conditioner has wide popularization and application prospect.
Owner:湖南重金属污染耕地安全高效利用工程研究中心有限公司

Tobacco floating seedling substrate and preparation method thereof

The invention relates to a tobacco floating seedling substrate and a preparation method thereof. The substrate contains 40-50% of turf, 10-20% of carbonized corn stalk granule, 10-20% of expanded perlite and 10-20% of vermiculite. The preparation method comprises the following steps of: crushing sun-dried corn stalks into rough granules; placing the rough granules in a carbonization furnace for high-temperature carbonization; crushing and screening after cooling; uniformly mixing with the turf, the expanded perlite and the vermiculite according to the raw material proportion; and carrying out sterilization. The corn stalks selected in the invention have the advantages of rich sources, low cost, various available nutrients and stable physical and chemical properties; by using the corn stalks to replace partial turf, the prepared substrate is loose, air-permeable, stable in structure, good in air permeability and water holding capacity, proper in pH value and large in cation exchange capacity, and has the effects of effectively ensuring the quality of floating seedling, bringing benefit to the sustainable development of the floating seedling substrate production, greatly reducing the seedling cost, solving the problem of insufficient sterilization, avoiding disease generation and having wide application prospect in tobacco floating seedling production.
Owner:HENAN AGRICULTURAL UNIVERSITY

Special ecological fertilizer for tea garden and preparation method of special ecological fertilizer

PendingCN107141169AIncreased fertilizer absorption and utilizationGood pore structureBio-organic fraction processingExcrement fertilisersFertilizerNutrient
The invention belongs to the technical field of agricultural fertilizers and particularly relates to a special ecological fertilizer for a tea garden and a preparation method of the special ecological fertilizer. One of purposes of the invention is to provide the special ecological fertilizer. The special ecological fertilizer is prepared from urea, plant ash, potassium humate, ground phosphate rock, biomass charcoal, rape seed cake meal, livestock and poultry manure, a biological bacteria preparation, mushroom dreg and dry branches and fallen leaves of tea trees and has the advantages that the raw materials are easily available, the fertilizer is environment-friendly and energy-saving and contains balanced nutrients, the fertilizing amount can be substantially reduced, and the quality and yield of tea leaves can be improved. Another purpose of the invention is to provide the preparation method of the special ecological fertilizer for the tea garden. According to the preparation method, the special ecological fertilizer for the tea garden can be prepared by virtue of the most simple and convenient flow. The preparation method comprises the steps of preparing a primary material by virtue of an aerobic-underground high-temperature composting fermentation manner, and uniformly mixing the primary material with the urea, the ground phosphate rock and the biomass charcoal, so as to obtain the special ecological fertilizer for the tea garden.
Owner:TEA RES INST ANHUI ACAD OF AGRI SCI

Environment-friendly type pavement heating sealant material as well as preparation method and application thereof

The invention relates to a pavement crack repairing material, in particular to an environment-friendly type pavement heating sealant material which is characterized by being prepared from the following raw materials in parts by weight: 50-70 parts of petroleum asphalt, 7-10 parts of an SBS modifier, 5-8 parts of an SBR modifier, 10-30 parts of waste tire rubber powder, 3-8 parts of natural rock asphalt, 5-20 parts of a phase solvent, 1-4 parts of polyester fiber, 2-5 parts of lignin fiber, 0.1-0.5 part of a cross-linking agent and 10-30 parts of a filling material. The environment-friendly type pavement heating sealant material is adopted for sealing and repairing cracks and joints of common roads, expressways and airfield runways, permeation and fusion of a sealant with an asphalt pavement at high temperature can be achieved, and the environment-friendly type pavement heating sealant material is sufficient in elasticity and free of over-flowing or tire adhesion; after being cooled, the environment-friendly type pavement heating sealant material is good in binding power, and can have elastic deformation along with expansion and shrinkage of cracks due to the relatively good elasticity.
Owner:山东高速物资储运有限公司

Production process of natural mineral lick additive

The natural mineral lick additive contains rich P, Ca, Mg, K, Na, S and other macro elements and trace elements. Its production process includes compounding materials, including attapulgite clay, bentonite, elite, diatomite, Chinese medicinal stone and shell; crushing; acidifying; activating; milling and packing. The natural mineral lick additive has high utilization rate of the effective components, capacity of promoting the growth of animal, excellent adhering and dispersing performances. It is suitable for producing various kinds of lick for ox, sheep, etc.
Owner:淮安神力特矿业有限公司

A nutritional-type fertilizer and a preparation method thereof

The invention discloses a nutritional-type fertilizer. The fertilizer is prepared from following raw materials in parts by weight: 35-40 of gypsum, 25-30 of bentonite, 13-16 of diammonium phosphate, 10-13 of potassium fulvate, 1-2 of ammonium molybdate, 1-3 of copper sulfate, 1-2 of ferrous sulfate, 3-4 of boric acid, 2-3 of polyvinyl alcohol, 4-6 of chitosan, 3-7 of sodium alginate, 8-12 of a soil conditioner and a proper amount of water. The fertilizer adopts the potassium fulvate and plant essential nutrient elements as components. The ratio of the plant nutrients is reasonable. The fertilizer has characteristics of capability of allowing premature ripening and preventing premature senility for grain crops, vegetables, fruits and economic crops. The fertilizer prepared from the chitosan and the boric acid not only is capable of killing pests, preventing diseases for plants and functioning as a fertilizer, but also is capable of decomposing animal and plant residual bodies and trace metal elements, thus converting the residual bodies and the trace metal elements into nutrients for the plants, enhancing plant immunity and promoting plant health. The bentonite has strong moisture adsorption capability, and can absorb water having a volume of 8-20 times of the volume of the bentonite itself and swell to 30 times in volume. The bentonite has certain glutinousness, thixotropy and lubricity. The blend of the bentonite and silt has plasticity and caking property, and has strong cation exchange capability and adsorption capability.
Owner:MAANSHAN KEBANG ECO FERTILIZER
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