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69results about How to "Improve organic matter" patented technology

Carbon-based composite material for arsenic and cadmium polluted soil remediation and application of composite material

The invention discloses a carbon-based composite material for arsenic and cadmium polluted soil remediation and application of the composite material. The carbon-based composite material disclosed by the invention is prepared by the steps: taking crop straws as raw materials, and charring to prepare charcoal; mixing with an iron salt solution according to a certain solid-liquid ratio, regulating the pH value of the solution in the process so as to realize coprecipitation of the two materials; performing pyrolysis, thereby obtaining the carbon-based composite material. The carbon-based composite material prepared in the invention is applied to arsenic and cadmium compound polluted soil, and methods such as turning over, watering and the like are combined, so that the content of arsenic and cadmium in an effective state can be obviously reduced; therefore, the arsenic and cadmium in the soil can be transferred to a direction with low biotoxicity and migration, the physicochemical properties of the soil can be improved to a certain degree, and the composite material is suitable to be applied to multiple types of soil. The arsenic and cadmium ions in a water body can be effectively removed, the preparation process is simple in operating steps, and the material is wide in source, low in production cost and environment-friendly.
Owner:INST OF SOIL & FERTILIZER ANHUI ACAD OF AGRI SCI

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 assisting in tailings restoration through ryegrass and planting ryegrass on restored land

A method for assisting in tailings restoration through ryegrass and planting the ryegrass on restored land includes the following steps that tailings is turned over by 18-22 cm and leveled; fresh ryegrass growing to the florescence are shorn into broken segments being 3-5 cm long so that ryegrass green manure can be formed; the ryegrass green manure is spread on the tailings land which is turned over and leveled, and the ryegrass green manure and the tailings are fully mixed evenly so that smooth planting land can be formed; ryegrass seeds are sown on the planting land. The planting method includes the steps that the seeds are processed and sown; the ryegrass is harvested regularly while stubble is left and the harvested ryegrass is returned to the field, 3-5 years after the ryegrass is planted, the whole ryegrass plants are recycled, the land is turned over, then, ridges are reconstructed for planting, and the plating method is repeated in this way. Due to the virtuous cycle that the planted ryegrass is returned to the field, the ecological environment can be continuously improved, and the landscape phenomenon of the tailings can be improved. The method has the advantages that operability is high and ecologically friendly and restoration cost is substantially reduced and the method is an important measure for ecological restoration of the tailings.
Owner:NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY

High-efficiency microbial organic fertilizer prepared from methane slag and application

The invention relates to high-efficiency microbial organic fertilizer prepared from methane slag. The high-efficiency microbial organic fertilizer mainly comprises methane slag, plant growth regulator, microbial functional bacteria, binder and disintegrating agent which are used as active ingredients. The high-efficiency microbial organic fertilizer comprises the following components in percentage by weight: 30.0 to 85.0 percent of methane slag, 0.001 to 3.0 percent of plant growth regulator, 0.1 to 1.0 percent of microbial functional bacteria, 0.5 to 1.0 percent of binder and 3.0 to 10.0 percent of disintegrating agent and the balance of other aids and fillers which are allowable and acceptable in chemical fertilizer and pesticide. The high-efficiency microbial organic fertilizer is abundant in organic matters, amino acid, nitrogen, phosphorus, potassium, trace elements and the proper plant growth regulator, and can obviously improve fertilizer efficiency of the methane slag, reduce the using amount of the methane slag, regulate growth of potatoes, obviously increase the yield of the potatoes and improve the quality of the potatoes. The high-efficiency microbial organic fertilizer is mainly applied to planting of the potatoes, Chinese medicinal materials and vegetables.
Owner:常华

Ecology and environment-friendly soil improvement agent and preparation method thereof

The invention discloses an ecology and environment-friendly soil improvement agent, which is prepared from the following raw materials in parts by weight: 15-25 parts of ore soil filler, 7-11 parts of coal gangue, 8-10 parts of straw, 10-20 parts of mixed grass meal, 3-5 parts of compound microorganisms, 5-7 parts of humate, 8-12 parts of excrement of livestock, 4-6 parts of desulfurized gypsum, 6-8 parts of bamboo charcoal powder and 5-7 parts of trace element additives. The soil improvement agent provided by the invention can effectively overcome the imbalance of nutrient elements in soil, improve soil fertility, loosen the soil, improve fertilizer efficiency, increase the contents of organic matters and nutrients, loosen hardened soil, accelerate a process of raw soil ripening and improve or recover land productivity; furthermore, industrial and agricultural wastes are used as most of the raw materials, so that the soil improvement agent is environmentally-friendly and safe; furthermore, the preparation method provided by the invention is lower in material cost, easy in obtaining of raw materials, simple in technology and easy to operate and in realization of industrial production, thus having higher practical value and a good application prospect.
Owner:合肥市风达农业有限责任公司

Aerobic and anaerobic integrated granule sludge reactor and wastewater treatment method thereof

The invention discloses an aerobic and anaerobic integrated granule sludge reactor and a wastewater treatment method thereof, and belongs to the field of wastewater treatment. Aerobic granule sludge and anaerobic granule sludge are integrated into the same reactor, continuous flow operation of the granule sludge process is achieved, and the problem that the aerobic granule sludge is difficult to culture and prone to disintegration in the operation process is solved. In the wastewater treatment method, anaerobic granule sludge is added into the reactor in the start stage, aeration is carried out in the middle of the reactor, after a period of time, aerobic particles are formed in the upper portion of an aeration point, and anaerobic particles increased on the middle and lower portion in the operation process can enter an aerobic region on the upper portion and are gradually converted into aerobic particles. The concentration of dissolved oxygen in the aerobic region on the upper portion of the reactor is controlled to be 0.5-1.5 mg/L in the operation process, the pH value in the reactor is 7.8-8.0, and the reflux ratio is 50-200%. The device and method are capable of efficiently removing organic matter and nitrogen in sewage, and the device has the advantages of being small in occupied area, stable in operation, low in cost and the like.
Owner:NANJING UNIV

Restoration method of damaged plants in coastal wetland

The invention relates to the technical field of restoration of coastal wetlands, in particular to a restoration method of damaged plants in a coastal wetland. The restoration method comprises the following steps of S1, determination of a restoration area and habitat survey; S2, reshaping by pumping water; S3, shaping by water discharge; S4, soil ploughing in the restoration area; S5, soil laying;S6, plant cultivation. An underwater ecosystem is constructed, and the absorption, adsorption, sedimentation promotion and physiological metabolism activities of primary oxygen produced by photosynthesis of submerged vegetations and underwater forests achieve the purposes of effectively removing nitrogen, phosphorus and other nutrient pollutants in water and increasing dissolved oxygen in the water to purify the water; crop straw is used as a natural fertilizer, which not only avoids the situation that rural straw burning pollutes the environment, but also increases organic matter and nutritional ingredients in damaged soil, and is more environmentally friendly and also makes the cost low; the crop straw is buried in the damaged soil for fermentation rot, so that the soil is looser and softer, and the saltness per unit area is reduced, thereby being more conductive to planting.
Owner:广东筑奥生态环境股份有限公司

Pepper cultivation method capable of reducing soil-borne diseases

The invention belongs to the technical field of agricultural planting and specifically relates to a pepper cultivation method capable of reducing soil-borne diseases. The pepper cultivation method comprises the following steps: (1) reconstructing a soil plough layer; (2) applying organic materials; (3) irrigating water and carrying out film mulching treatment; (4) carrying out land preparation andapplying base fertilizer; (5) carrying out field planting; (6) applying additional fertilizer. According to the pepper cultivation method involved in the invention, soil of a pepper planting land issubjected to plough layer reconstruction, and a lot of organic materials with the carbon/nitrogen ratio of (30 to 35) to 1 are applied; 5 d and 10 d after water irrigation and film mulching are carried out, water is irrigated at the periphery of a thin film respectively, so that a gap between the edge of the periphery of the thin film and the soil is sealed by water; the fertilizer is scientifically applied in a pepper cultivation process, and a plurality of types of potassium fertilizer are matched to apply, so that the incidence rate of four soil-borne diseases of peppers can be remarkably reduced, wherein the incidence rate of pepper bacterial wilt is averagely reduced by 46.07 percent, the incidence rate of pepper phytophthora blight is averagely reduced by 26.20 percent, the incidencerate of pepper root rot is averagely reduced by 32.45 percent and pepper root-knot nematode does not occur.
Owner:HUNAN VEGETABLE RES INST

High-yield environment-friendly method for applying fertilizer to red and yellow soil land

The invention discloses a high-yield environment-friendly method for applying a fertilizer to red and yellow soil land, which comprises the following steps: A. composting: carrying out heap fermentation on livestock and poultry manure collected from cultivation farms, killing pathogenic bacteria and parasites in the livestock and poultry manure, and measuring the dry matter content of the fermented livestock and poultry manure; B. land preparation: tilling and leveling the red and yellow soil by using a minitype tilling machine; C. fertilizer application: applying the fermented livestock and poultry manure to the tilled and leveled red and yellow soil land in a way of 2.3-4.5 tons of dry matters per hectare, and turning over the soil, so that the manure is mixed into the upper soil layer; D. sowing: directly sowing seeds or transplanting the needed crops, and watering; E. intertillage and weeding: intertilling in the crop growing season, and weeding in combination with intertillage; F. disease and pest control; and G. harvesting: harvesting when the crops become ripe. The method has the advantage of low cost, is easy in realization and simple and convenient in operation, is widely suitable for applying livestock and poultry manure to medium/low-yield red and yellow soil land, improves the soil quality and increases the soil nutrient content.
Owner:INST OF SUBTROPICAL AGRI CHINESE ACAD OF SCI

Preparing method of pollution-free fertilizer special for macadamia

The invention discloses a preparing method of a pollution-free fertilizer special for macadamia. The preparing method comprises the following steps that firstly, a first mixed material is prepared with crop straw as the main raw material; secondly, waste cob bricks are taken and smashed and then mixed with fruit shell yeast, a second mixed material is obtained, the first mixed material and bentonite are mixed to obtain a third mixed material, and loess mud, river sand and molasses fermentation liquor are mixed to obtain a fourth mixed material; thirdly, the fourth mixed material, the third mixed material and the second mixed material are flatly laid in a cultivation trough from bottom to top in sequence, and green manure grass seeds are sown; fourthly, grass cutting, stirring and fermentation are carried out, and fermentation fertilizer is obtained; fifthly, the fermentation fertilizer is mixed with bamboo shoot peel and auxiliary materials, and the pollution-free fertilizer special for macadamia is obtained. The raw materials used in the method are environment-friendly substances in natural ecology, waste in life is recycled and turned into treasure, the cost of the raw materials is reduced, and the pollution-free fertilizer special for macadamia has the advantages of being nontoxic, free of pollution and nuisanceless.
Owner:马山县荷松种植专业合作社

Method for remediating soil by using thermal desorption and microbial technology

The invention discloses a method for remediating soil by using thermal desorption and a microbial technology. The soil is remediated by utilizing a thermal desorption soil remediating system, and the method comprises the following steps: firstly, preheating contaminated soil by adopting a preheating device, then, heating the preheated contaminated soil by adopting a heating device to separate contaminants in the soil, and finally, recovering heat of the soil from which the contaminants are separated by adopting a heat recovery device; remediating the soil by utilizing the microbial technology; applying organic fertilizer to the soil treated by thermal desorption per mu, and plowing the organic fertilizer under the soil by a rotary cultivator; then, sprinkling the soil to keep soil humidity, and then, evenly spraying microbial soil remediating inoculant; and evenly spraying the microbial soil remediating inoculant once after two months to finish soil remediation after three months. According to the method disclosed by the invention, by adopting thermal desorption and the microbial technology, a breeding condition in favor of microbial strains is created by utilizing a physical and biological method, and the soil is remediated in manner of nature, return and equilibrium.
Owner:上海松沅环境修复技术有限公司

Tobacco biomass charcoal based long-effect potassium fertilizer and preparation method of tobacco biomass charcoal based long-effect potassium fertilizer

The invention discloses a tobacco biomass charcoal based long-effect potassium fertilizer and a preparation method of the tobacco biomass charcoal based long-effect potassium fertilizer. The tobacco biomass charcoal based long-effect potassium fertilizer is prepared from the following raw materials: 25 to 35 parts of tobacco biomass charcoal, 35 to 45 parts of a silicon potassium calcium magnesium fertilizer, 10 to 20 parts of potassium chloride, 5 to 10 parts of potassium humate and 5 to 10 parts of a granulation binder and the balance of water, wherein the tobacco biomass charcoal is prepared by carrying out thermal cracking on waste tobaccos for 1.5h to 2.5h through a portable carbonization furnace under an anaerobic condition at 450 DEG C, and cooling. The tobacco biomass charcoal based long-effect potassium fertilizer has the effects and potentials of improving physicochemical characters and microorganism activity of soil and increasing the carbon sequestration potential of the soil, can be used for increasing the organic matters of the soil, the soil cation exchange capacity and the granular structure, and has the effects of preventing the soil from being hardened, improving hydrothermal conditions of the soil, effectively adjusting a soil structure and preventing the soil from degradation; a positive cycle of agricultural production is realized.
Owner:GUIZHOU INST OF SOIL & FERTILIZER

Compound fertilizer for farmland soil improvement and preparation process thereof

The invention discloses compound fertilizer for farmland soil improvement and a preparation process thereof. The compound fertilizer is prepared from the following components in parts by weight: 3-6 parts of a microbial compound inoculant, 6-10 parts of earthworm egg cocoons, 15-20 parts of cow dung, 5-7 parts of compost zymophyte, 20-30 parts of straw, 15-20 parts of mushroom residues, 20-25 parts of rotten figs, 15-20 parts of fresh durian shells, 20-25 parts of a sugar residue mixture, 18-25 parts of bentonite, 15-20 parts of diatomite, 8-12 parts of emulsified asphalt, 10-15 parts of distillers' grains, 5-7 parts of sulfur powder, 8-10 parts of ferrous sulfate and the balance of rice washing water. Earthworm egg cocoons are introduced into soil and can be rapidly hatched into earthworms after the fertilizer is put into use, formation of a soil aggregate structure is promoted, soil breathability is improved, and the soil fertility level is increased. The organic fertilizer improvesthe physical and chemical properties of the soil and enhances the fertilizer retention performance and buffer performance of the soil, the number and activity of soil microorganisms are increased, thesoil temperature is increased, the soil ion exchange rate is increased, and rice washing water is used as a solvent to promote crop growth.
Owner:LIAONING TECHNICAL UNIVERSITY

Comprehensive control method for tomato pythium rot

InactiveCN104996231APromote germination and strong seedlingsImprove disease resistancePlant cultivationCultivating equipmentsDiseaseMetalaxyl
The present invention relates to a comprehensive control method for tomato pythium rot. The comprehensive conrol method comprises the following steps of: 1, carrying out soil ecological management: (1) applying a Difulai greenhouse type fertilizer, with the use amount of 200-400ml per mu; (2) within one month before tomatoes become ripe, applying a traditional Chinese medicine trace fertilizer, with the use amount of 30-35g per mu; 2, carrying out agricultural control; 3, carrying out biological control; 4, carrying out biological prevention and treatment; 5, carrying out physical control: (1) cleaning plants with serious diseases and diseased residual bodies in time and intensively destroying the plants with serious diseases and diseased residual bodies; and 6, carrying out chemical control: (1) when finding diseased fruits, firstly picking the diseased fruits and then spraying pesticides; alternatively spraying and applying a 500-fold solution of 80% mancozeb wettable powder and a 500-fold solution of 58% metalaxyl mancozeb wettable powder; spraying once every 7 days; and continuously spraying for 3-4 times. By virtue of the comprehensive control method, measures including the soil ecological management, the agricultural control, the biological control, the biological prevention and treatment, the physical control, and the chemical control and the like are adopted, so that the mobility of the tomato pythium rot is greatly reduced, the effect is good, and the yield and quality of tomatoes are improved.
Owner:李佩龙
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