40results about How to "Adjust carbon to nitrogen ratio" patented technology

The invention relates to a soil fertilization method by directly returning straws to field. The specific operation steps comprise: 1, in a crop harvesting season, using a harvester to harvest straws and crops, reserving low stubbles, collecting crop straws; 2, concentrating crop straws collected in one mu field in 1/2 to 1/5 mu cultivated land, uniformly laying the straws, spreading lime nitrogen, performing rotary tillage, mixing the crop straws with surface soil, performing rotary tillage twice; fallowing the treated cultivated land for one month, planting crops normally on cultivated land which is not treated; 3, performing second rotary tillage, decomposition and conversion speed of the straws greatly accelerating; 4, fallowing the cultivated land for a crop growing season, the straws fully decomposing and converting into organic materials in the soil and releasing inorganic nutrients, to obtain a fallow field. Straw residual bodies cannot be seen in the soil in the fallow field, and organic material content in the surface soil of the fallow field is improved by more than 8%, soil total nitrogen content is improved by more than 5%, soil alkali-hydrolyzable nitrogen content is improved by more than 5%, and rapidly available potassium content is improved by more than 10%.

The invention discloses a sewage treatment method of composite vertical letdown stream artificial wetland, sewage is processed through two-stage serial vertical letdown stream artificial wetland in the method, the two-stage vertical letdown stream artificial wetland comprises a bed, E-shape structure water distribution pipe and processing medium, internal carbon source waste pipe distributed at the bottom of a first stage vertical letdown stream artificial wetland, sewage enter uniformly into the bottom of the first stage vertical letdown stream artificial wetland from the top thereof via the E-shape structure water distribution pipe, then the processed sewage mixed with internal carbon source sewage is processed in the second stage vertical letdown stream artificial wetland. The invention has advantages of low processing cost, small accommodation area and good denitrification dephosphorization effect.

The invention relates to the technical field of hermetia illucens breeding, in particular to an environment-friendly breeding method of hermetia illucens by utilizing kitchen garbage. The environment-friendly breeding method of hermetia illucens by utilizing kitchen garbage comprises the following steps: S1, collecting kitchen garbage, removing impurities, filtering out excessive moisture and grease, and performing crushing and pulping; S2, uniformly mixing obtained kitchen garbage slurry with auxiliary materials according to a mass ratio of (8-20):1; S3, spreading the fermented mixed slurry in a culture box, inoculating hermetia illucens larvae, and using the hermetia illucens larvae to eat the mixed slurry; S4, separating the hermetia illucens larvae from hermetia illucens excrement before entering a pre-pupa stage; and S5, preparing the fresh hermetia illucens larvae into a feed and thoroughly decomposing the excrement to be used as an organic fertilizer. The provided environment-friendly breeding method of hermetia illucens by utilizing kitchen garbage can realize resource utilization and improve the economic benefit of the kitchen garbage, and also can improve a survival rateand the output value of hermetia illucens larvae.

The invention discloses a method for reinforcing alkaline fermentation and acidogenesis of excess sludge by straws. The method mainly comprises the following steps of pretreating the straws, pretreating the excess sludge, jointly fermenting the straws and the sludge, and removing the nitrogen and phosphor from fermenting liquid, wherein the straws are pretreated into a proper outer carbon source, and the excess sludge is pretreated by soaking liquid. The method has the advantages that compared with simple pure alkaline liquid, the concentration of the soaking liquid is higher; the concentration difference is formed between the inside and outside of sludge cells, and the plasmolysis of the sludge cells is caused, so that under the simultaneous action, the sludge treatment time is shortened, the carbon and nitrogen ratio of a straw-sludge fermenting system is adjusted, the hydrolysis of the excess sludge is enhanced, the efficiency of anaerobic fermentation and acidogenesis is promoted, the economic feasibility of the anaerobic fermentation technology of the sludge is improved, and the problem of low acidogenesis efficiency due to insufficient content of organic matters in the excess sludge is solved.

The invention relates to a plant-microorganism combined remediation method for a moderate and mild lindane-cadmium combined polluted farmland. Cadmium hyperaccumulators and crops are planted on polluted soil, a compound fertilizer and a biochar base fertilizer are applied, the carbon-nitrogen ratio of the soil is regulated while the pH value of the soil is reduced by using the biochar base fertilizer, the absorption of the hyperaccumulators to pollutants isenhanced while the biomass of the hyperaccumulators is improved, the growth of the hyperaccumulators is not influenced by concentration aggregation of the pollutants, pseudomonas and arbuscular mycorrhizal fungi are prepared into a mixed microbial inoculum, and the resistance of the hyperaccumulators is improved; and economic crops with root systems deeper than those of the hyperaccumulators and the hyperaccumulators are selected for intercropping/relay intercropping, the soil fertility is improved, the growth environment of the hyperaccumulators is adjusted, the remediation efficiency of the hyperaccumulators on lindane and cadmium is further enhanced, and the purpose of remediation while production is achieved.

The invention relates to an ethylicin-mineral wettable powder fertilizer, belonging to the technical field of fertilizers. The ethylicin-mineral wettable powder fertilizer comprises ethylicin, DA-6, minerals, lignin, sodium dodecylbenzenesulfonate, sodium bisulfite, white carbon black and kaolin. The ethylicin-mineral wettable powder fertilizer comprises the following components in parts by weight: 65-90 parts of ethylicin, 40-60 parts of DA-6, 40-60 parts of lignin, 16-24 parts of sodium dodecylbenzenesulfonate, 40-60 parts of sodium bisulfite, 210-290 parts of white carbon black and 300-410 parts of kaolin, and the minerals comprise 40-60 parts of zinc sulfate monohydrate, 25-35 parts of ferrous sulfate heptahydrate, 28-40 parts of boric acid and 25-35 parts of manganese sulfate monohydrate. The product can be used for spraying, sprinkling, irrigating roots or watering the roots, the application is convenient, the effects are good, a variety of trace elements can be rapidly supplemented for crops, the carbon-nitrogen ratio of plants can be simultaneously regulated, the crop quality can be rapidly improved and the crop yield can be improved.

The invention discloses a method for producing an organic carbon fertilizer through photocatalytic and oxidized organic wastewater and relates to an organic wastewater treatment and waste utilization method. The method includes the following steps that 1, a photocatalytic and oxidized reaction container is prepared; 2, organic wastewater obtained after coarse filtration is pumped into the photocatalytic and oxidized reaction container; 3, photocatalysts and hydrogen peroxide are added, wherein the photocatalysts including TiO<2>/SiO<2> and Fe<3>O<4> are added, the hydrogen peroxide is pumped in, a stirrer is started to mix the photocatalysts and the hydrogen peroxide to be uniform, and the operation process is required to be kept out of the sun; 4, a photocatalysis-oxidative degradation reaction is conducted, wherein a top cover is opened so that sunlight can be directly emitted into the reaction container or an ultraviolet lamp is turned on for illumination; 5, the catalyst is recycled, evaporated, concentrated and made into a liquid organic carbon fertilizer with the carbon content being 50-500 g/L. The organic carbon fertilizer produced through the method can be used for crop irrigation and spraying and can further serve as fertilizer mother liquor to be blended into various types of fertilizers for being applied.

The invention relates to the technical field of fertilizers, in particular to a microbial organic fertilizer and a preparation method for the same. The microbial organic fertilizer is prepared from the following raw materials in parts by weight: 400 to 600 parts of chicken manure, 400 to 600 parts of sucrose filter residues, 200 to 300 parts of fungus preparation leftovers, 2 to 14 parts of a nitrogen phosphorus potassium fertilizer, 0.25 to 1.5 parts of actinomycetes, 0.25 to 1.5 parts of beneficial fungi, 0.1 to 0.8 part of composting zymocytes and 0.1 to 0.9 part of humic acid. According to the microbial organic fertilizer, the chicken manure is adopted as a main raw material, a manner for reutilizing waste such as the chicken manure and the sucrose filter residues is provided, and the microbial organic fertilizer has multiple beneficial microorganisms, and is high in absorption and utilization rate. The invention also provides the preparation method for the microbial organic fertilizer, the preparation method is high in operability, and differences between product batches are small.

The invention belongs to the field of agricultural cultivation, and particularly relates to a zinc-enriched leaf vegetable nutrition solution and a cultivation method in order to solve the problems that in existing leaf vegetable production, the zinc content is low, the commodity performance is poor, and the quality is common.

The invention relates to a precise combined feeding method for regulating water quality in aquaculture, and belongs to the technical field of the aquaculture. The precise combined feeding method for regulating the water quality in the aquaculture includes steps: using high and low protein feed in mixing mode during the whole aquaculture process, regulating a carbon-nitrogen ratio in the medium period of the aquaculture, and regulating the water quality in the later period of the aquaculture. By using the precise combined feeding method for regulating the water quality in the aquaculture, the water quality can be regulated well, bacilli and lactic acid bacteria in a water body become dominant bacteria, fishes can grow well and quickly by throwing the feed in the later period of the aquaculture, a culture cycle is shortened, yields and efficiency are increased, and a feed coefficient is reduced.

The invention discloses a method for producing a biologically fermented organic fertilizer. The method comprises the following steps of step (1), performing dry and wet separation treatment on feces,and separating solid feces and liquid feces; step (2), adding straw powder and a biologically fermented agent on the prepared solid feces in step (1), and uniformly mixing; step (3), making a mixed solid material in step (2) into a material pile, inserting a thermometer into the material pile, and wrapping the surface of the material with plastic film; step (4), when the temperature of the material reaches 70-80 DEG C, uncovering the plastic film on the surface, turning the material once, and then stacking for three days. The method has high bio-transformation efficiency of livestock and poultry manure.

The invention discloses a novel culture medium for rapid propagation of peony and relates to a new formula of a culture medium. The culture medium comprises macro-elements, trace elements, iron salt, organic matters and distilled water and is formed by a great improvement on the basis of a traditional MS culture medium. The novel culture medium (LPM) for rapid propagation of peony is especially suitable for tissue culture of peony; and rapidly propagated peony seedlings grow strongly, have a high propagation coefficient, and are thick and strong in root, large in quantity and strong in activity, and the transplanting survival rate of the seedlings is up to more than 85%.

The invention discloses a purifying agent for treating tortoise breeding wastewater. The invention also discloses a preparation method of the purifying agent for treating turtle breeding wastewater, which comprises the following steps: adding sepiolite into water, standing, adding liquid paraffin, heating, keeping the temperature, continuously stirring in the heating and keeping process, adding into an oxalic acid solution, oscillating, carrying out suction filtration, and washing to neutrality to obtain acid-etched sepiolite fibers; adding sodium carboxymethyl cellulose into an ethanol aqueous solution, uniformly mixing, adding hydrochloric acid, stirring, adding the acid-etched sepiolite fibers, heating, stirring, carrying out a hydrothermal reaction, cooling, washing, drying, adding theproduct into a composite bacteria solution, standing, and filtering to obtain a sepiolite compound; and adding chitosan into water, continuously stirring, adding acetic acid, continuously stirring, standing overnight at room temperature, adding the sepiolite compound, uniformly mixing, dropwise adding the mixture into a curing liquid, heating, and carrying out heat preservation to obtain the purifying agent.

The invention discloses a biological organic bacterial fertilizer for fruit trees. The biological organic bacterial fertilizer is prepared from the following raw materials in parts by weight: 800-1200parts of cow dung, 800-1200 parts of pear residues, 800-1200 parts of a mushroom substrate, 800-1200 parts of furfural residues, and 1-3 parts of a composite microbial inoculum. The preparation method comprises the following steps: mixing formula amounts of the cow dung, the pear residues, the mushroom substrate, the furfural residues and the composite microbial inoculum, carrying out stacking and fermenting with a maturity period of 30 days, turning over stacking strips to reduce water to be less than 30%, and screening and packaging a finished product. The invention provides a biological organic bacterial fertilizer to solve the problem of livestock excrement and agricultural production waste residues. The organic bacterial fertilizer provided by the invention contains a plurality of beneficial bacteria, has a high absorption and utilization rate, and can improve soil fertility. In addition, the invention also provides a preparation method of the biological organic bacterial fertilizer, and the method has the advantages of strong operability, high standardization, capability of being used for batch production, and the like.

The invention discloses a heavy metal polluted farmland restoration straw gasification combustion and heat energy grain drying coupling technology, and belongs to the technical field of biomass thermal conversion. The method comprises the following steps of (1) selecting to establish a straw gasification combustion furnace and grain drying coupling type base near a phytoremediation project; (2) mechanically packaging rice straws subjected to phytoremediation on site, and transporting the packaged rice straws to the grain drying base; (3) directly feeding the straw packages into a gasificationcombustion furnace to be gasified in a gasification chamber, enabling generated combustible gas to enter a combustion chamber to be fully combusted, and generating hot smoke gas; and (4) enabling thehot smoke gas to exchange heat with external air in a heat exchanger, heating the external air to form clean hot air, and feeding the hot air into a grain dryer through a pipeline to dry grains. According to the method, mechanization is completely achieved, and the rice drying cost of farmers can be saved on; and smoke gas after gasification combustion is discharged after dust removal treatment, charcoal ash is recovered in a unified mode, and therefore, the problem of secondary pollution of rice straws polluted by heavy metal is solved.

The invention discloses comprehensive organic waste rapid treatment equipment, which comprises a vibration sorting unit and a large object crusher, the vibration sorting unit and the large object crusher are connected to the top of a comprehensive crusher respectively through a conveying mechanism and a first automatic conveyor; the bottom of the comprehensive crusher is connected to the top of amixer group through a second automatic conveyor; the bottom of the mixer group is connected to the top of a metering packaging machine through a third automatic conveyor; and the bottom of the metering packaging machine is connected to a degradable film automatic packer through a first horizontal automatic conveyor. According to the invention, the working procedure of the large-object crusher is arranged, so that the front end sorting workload of garbage is reduced, the working efficiency of the comprehensive crusher is improved, and the occurrence of machine jamming is avoided; by treatment with a mixture of plant organic waste and crushed materials, zymophyte can be diffused, and the carbon-nitrogen ratio and the humidity can be adjusted; through degradable film automatic packaging, theadverse effect of the organic waste on the environment is rapidly eliminated.