33results about How to "Does not cause acidification" patented technology

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.

The invention discloses silico-calcium magnesium-potassium mineral multielement compound fertilizer and a preparation method thereof. The mineral multielement compound fertilizer is a water-insoluble dissolving resisting fertilizer prepared based on potassium-rich rock and comprises microelement potassium, secondary element silicon, calcium, magnesium and multiple trace elements, wherein the mass fraction of potassium oxide is larger than or equal to 8%; the total mass fraction of the silica, the calcium oxide and the magnesium oxide is larger than or equal to 5%; the mass fraction of water is less than or equal to 3%; and simultaneously the trace elements are considered. The silico-calcium magnesium-potassium mineral multielement compound fertilizer is the water-insoluble dissolving resisting fertilizer and is characterized by non-infiltration, non-infiltration and non-loss, can not cause the acidification, alkalization and hardening of the soil after being used, can be used as the base fertilizer or top application, and is of great benefit to improving the soil structure and increasing the efficient nutrition components.

The invention provides a method for preparing a calcium-silicon-potassium-magnesium soil conditioner. The method comprises the following steps: A, preparing raw materials; B, grinding; C, calcining; D, water quenching; E, crushing; F, granulating; and G, drying. According to the preparation method, potassium-containing shale is utilized to prepare calcium-silicon-potassium fertilizer, so that potassium in the calcium-silicon-potassium fertilizer is sufficiently utilized as potassium fertilizer, and silicon oxide in the calcium-silicon-potassium fertilizer is sufficiently utilized to produce excellent silicon fertilizer; limestone and dolomite added into production are sufficiently utilized to produce calcium fertilizer and excellent soil conditioners; the raw materials are sufficiently utilized and converted into fertilizer, and the fertilizer cannot cause soil acidification, alkalization and hardening after being applied, the commodity quality and product quality of crops can be remarkably improved, and the crops have higher nutritional value.

An outdoor large-cherry soil test fertilizer application method comprises a step of soil nutrient detection, a step of fertilizer preparation amount calculation, and a step of fertilizer application, so the method reaches scientific and reasonable fertilizer application, and realizes the adjustment of measures according to local conditions, thereby the method has the advantages of no soil nutrient loss, imbalance, surface source pollution or soil acidification, proper fertilizer application, fruit quality improvement, no pollution, and no physiological diseases, and is especially suitable for the large-cherry fertilizer application.

The invention relates to the production technology of granular fertilizers, and specifically relates to a magnesium nitrate-calcium nitrate complex salt type compound fertilizer and a preparation method thereof. The magnesium nitrate-calcium nitrate complex salt type compound fertilizer is characterized in that the total mass percent of magnesium nitrate and calcium nitrate in the compound fertilizer ranges from 50% to 90%, the mass percent of crystal water in the compound fertilizer ranges from 10% to 50%, and the mass ratio of magnesium nitrate to calcium nitrate is (3.5-0.1):1. Compared with the prior art, the magnesium nitrate-calcium nitrate complex salt type compound fertilizer and the preparation method thereof have the beneficial effects that (1) the magnesium nitrate-calcium nitrate complex salt type compound fertilizer is far better than compound fertilizers obtained by doping and pelletizing by a mechanical pressing method in free-running property and anti-caking property, the caking time of the product is above 30 days and therefore, the product can be used very conveniently; (2) the preparation method is lower in cost than a process of batch crystallization as well as mechanical mixing and pelletizing, and also applicable to continuous large-batch production, and therefore, a convenient condition is provided for automatic process control.

The invention relates to a method for removing semi-volatile organic pollutants in soil through a Fenton-like oxidation process. The method comprises the following steps: adding organic acid into polluted soil with a certain water content to prepare an acidic slurry with a pH value of 3-4, then adding alkaline solid peroxides and metal salts into the acidic slurry to obtain a Fenton's-like reaction system, enabling the Fenton's-like reaction system to react with the soil for a certain time under a certain temperature, and removing the organic pollutants in the polluted soil. Compared with theprior art, the method has the advantages of short remediation period of organic polluted soil, excellent pollutant removal effect, low damage to intrinsic physical and chemical properties of the soiland capability of preventing the soil from being acidized.

The invention relates to slow-release fertilizer, in particular to high molecular slow-release boric fertilizer and a preparation method thereof. The invention solves the problem that the high molecular slow-release boric fertilizer does not exist at present. The high molecular slow-release boric fertilizer is a compound with the following general formula: in the formula, m is 1-10, n is 0-5, and x is 5-10. The preparation method of the high molecular slow-release boric fertilizer comprises the following steps: generating potassium dihydrobis borate by boric acid, potassium hydroxide or potassium carbonate, then adding urea, controlling the reaction temperature to 110-140 DEG C, enabling a reactant to be kept in a molten state, afterwards adding formaldehyde, carrying out a polycondensation reaction continuously under this condition, stopping the reaction until the viscosity of the system reaches the granulating requirement and then granulating a polycondensation reaction product in a molten state. The high molecular slow-release boric fertilizer can be independently used as special paddy fertilizer, or is mixed with farmyard manure for use, or is applied as the slow-release fertilizer of crops which especially require the replenishment of the boron element.

The invention provides farmyard manure. The farmyard manure is formed by peanut bran, bone meal, fish meal and plant ash. The farmyard manure disclosed by the invention has high nitrogen-phosphorus-potassium content, and the elements are balanced in proportion; and the farmyard manure is very easily absorbed by plants and the generated fertilizer effect is very obvious, so that phenomena of soil caking, acidification, damages to a soil structure are not caused after the farmyard manure is used for a long period. The farmyard manure is completely harmless and is very suitable for producing organic foods.

The invention provides a coated fertilizer with polyethylene and cellulose as a coated layer and a preparation method thereof. The coated fertilizer is prepared by utilizing fertilizer particles as a core and evenly coating a coated film material on the outer surface of the core. The coated film comprises the polyethylene and the cellulose, and the weight ratio of the polyethylene and the cellulose is 0.5:1-1:0.5. Dosage of the coated film is 10-25% of the weight of the core of the fertilizer, and the thin film thickness is 0.05-0.2mm. The coated film material is an environment-friendly fertilizer, is long in control release time and high in degradation rate and N utilization ratio. The coated fertilizer is simple in preparation process and low in cost and has remarkable effect on afterreap crops.

The invention discloses a production method of a chemosynthetic water-soluble fertilizer, the chemosynthetic water-soluble fertilizer prepared through the production method of the chemosynthetic water-soluble fertilizer and application of the chemosynthetic water-soluble fertilizer. According to the method, production is performed by taking industrial diammonium hydrogen phosphate and / or monopotassium phosphate, nitrogenous fertilizer and potash fertilizer as main raw materials through hydrogen bonding, acid regulating by adding alkaline and the like. The production method is little in investment, few in production procedures, short in production cycle and low in production cost. The chemosynthetic water-soluble fertilizer is appropriate in acidity, capable of achieving the good crystalline state, stable and uniform in composition, not prone to be hardened and damped, capable of being fully dissolved in water, easy to absorb and convert, high in fertilizer utilization rate, significant in synergistic effect and suitable for being applied to acidic or meta-acidic soil and facility greenhouses.

The invention discloses a liquid water-soluble fertilizer containing humic acid and a preparation method of the liquid water-soluble fertilizer. The liquid water-soluble fertilizer is prepared from the following materials in parts by weight: 8-13 parts of a urea ammonium nitrate solution, 8-14 parts of ammonium polyphosphate, 14-20 parts of potassium tripolyphosphate, 7-11 parts of mineral sourcepotassium fulvic acid, 1-3 parts of a non-ionic surfactant, 0.05-0.2 part of endophyte source extract cyclodipeptides, 0.1-0.3 part of an organic silicon defoamer, 0.2-0.6 part of IDHA iron, 0.1-0.5 part of glycerol, 0.1-0.5 part of xanthan gum and 36.9-61.45 parts of water. The preparation method comprises the following steps that the xanthan gum is added into the 6 parts of water in a reaction kettle, uniform stirring is conducted, still standing is conducted for 24 h, then the residual water, the potassium fulvic acid, the surfactant and the defoamer are added, heating is conducted to 50 DEG C, and stirring is conducted for 5 min; the urea ammonium nitrate solution, the ammonium polyphosphate, the potassium tripolyphosphate, the IDHA iron and the like are added into a solution, the cyclodipeptides and the glycerol are added after complete dissolving, heating is conducted to 50 DEG C, stirring is conducted for 5 min, cooling is conducted to the room temperature, and thus packaging can be conducted. The liquid water-soluble fertilizer is simple in process, a product meets the requirements of current drip irrigation equipment, the use effect is good, and the liquid water-soluble fertilizer can be widely popularized.

The invention relates to a preparation technology of a granular fertilizer and particularly relates to a potassium-magnesium nitrate double-salt type compound fertilizer and a preparation method thereof. The compound fertilizer contains 50-90wt% of potassium nitrate and magnesium nitrate in total and 10-50wt% of crystal water, wherein the mass ratio of potassium nitrate to magnesium nitrate is (15-0.2):1. Compared with the prior art, the potassium-magnesium nitrate double-salt type compound fertilizer and the preparation method of the compound fertilizer have the following beneficial effects: (1) the potassium-magnesium nitrate double-salt type compound fertilizer is far better in dispersibility and anti-caking performance than a compound fertilizer product obtained via mixing and mechanical pressing granulation, and the caking time of the compound fertilizer is over 30 days, so that great convenience is brought for the use of the compound fertilizer; (2) compared with the technology that intermittent crystallization is performed firstly and then mechanical mixing and granulation are performed, the preparation method is lower in cost and suitable to continuous large-batch production, so that convenient conditions are provided for the automation of technology control.

The invention discloses an ultra-stable mineralizing agent and application thereof in remediation of heavy metal contaminated soil. The ultra-stable mineralizing agent is prepared by quickly adding anenvironment-friendly metal ion solution and a precipitant into a micro-liquid membrane reactor; the use process can be implemented in a sowing or slurry spraying mode. The ultra-stable mineralizing agent is slightly alkalescent, does not cause soil acidification, and is very suitable for southern areas with serious soil pollution. Comparing adsorbent, the ultra-stable mineralizing agent preparedby the invention has very high activity; heavy metal ions such as copper, cadmium and manganese in soil can be quickly anchored in crystal lattices of the ultra-stable mineralizing agent in an isomorphous substitution or dissolution-reconstruction mode, hydrotalcite with a more stable structure is formed through mineralization, and the heavy metal ions are extremely difficult to dissociate from the hydrotalcite and are in an ultra-stable mineralization state. Besides, due to the ion radius matching rule, the ultra-stable mineralizing agent prepared by the invention also shows good selectivityand has a very good effect in in-situ remediation of soil heavy metal pollution.

The invention relates to a novel chemical fertilizer. The novel chemical fertilizer consists of the following components in parts by weight: 25 to 35 parts of nitrogen fertilizer, 30 to 40 parts of phosphorus fertilizer, 10 to 15 parts of potash fertilizer, 3 to 7 parts of potassium sulfate, 150 to 180 parts of green manure, 20 to 40 parts of aloe, 3 to 5 parts of garlic, 15 to 20 parts of humic acid, 5 to 6 parts of strain pack and 4 to 6 parts of chili. The novel chemical fertilizer provided by the invention is low in cost, is convenient to manufacture, is green and environment-friendly, is high in utilization rate, is high in nutrient content, is various in type, can supply nutrients needed for growth of crops and shorten the growth period, can further reduce insect pests and improve the crop yield, does not cause soil acidification, alkalization and hardening, has an effect of improving soil to a certain extent, improves economic benefits, satisfies agricultural demands of sustainable development and has a better popularization and application prospect.

The invention provides a preparation method of an electrolytic manganese residue-based slow release fertilizer. The method mainly comprises the following steps: (1) compounding an inorganic non-metal slow-release material, crushed electrolytic manganese residues and other fertilizer component additives to form a slow-release fertilizer precursor; (2) mixing an active silicon-aluminum source and an acid activator to prepare an inorganic binder; and (3) mixing the slow-release fertilizer precursor with an inorganic binder, granulating and molding, curing, and bagging for later use. The prepared slow-release fertilizer is neutral, the problems of occupational health and environmental pollution in the preparation and use process of a conventional slow-release fertilizer are solved, and recycling of the electrolytic manganese residues and alkaline soil improvement are facilitated.

The invention relates to the technical field of seed treatment, in particular to a soil conditioner for planting Xiaozhou head vegetable. The soil conditioner is prepared from substances in parts by weight as follows: 10-22 parts of straw, 20-40 parts of humic acid, 10-30 parts of slaked lime, 15-25 parts of oyster shell powder, 8-16 parts of foamed resin, 20-40 parts of diatom powder and 0.5-3 parts of a microbial agent. By means of the soil conditioner for soil improvement, soil is promoted to form a granular structure, soil capacity is reduced, coordination capability of water, fertilizer,air and heat in soil is improved, capabilities of water retention, fertilizer conservation and fertilizer supply of soil are improved, and quality of the head vegetable is effectively improved while yield of the head vegetable is guaranteed.

The invention provides a coloring fertilizer for grape planting and a manufacturing method thereof, belonging to the field of agricultural planting. The coloring fertilizer for grape planting is prepared from the following raw materials in parts by weight: 20-25 parts of grapevine, 15-20 parts of rice shell, 25-30 parts of pine wood dust, 10-15 parts of shrimp / crab shell powder, 10-20 parts of dry algae, 10-15 parts of chicken manure, 10-13 parts of plant ash, 15-20 parts of fulvate, 6-10 parts of calcium phosphate, 20-25 parts of magnesium sulfate, 10-15 parts of potassium dihydrogen phosphate, 3-5 parts of zinc sulfate, 5-8 parts of potassium sulfate and 0.006-0.01 part of rotting promoter. The coloring fertilizer provides sufficient nutrient elements, satisfies the grape growth demands, has small irritation, can be easily absorbed by the plant root system, can increase the sugar and color in the grape coloring process, and improves the taste and appearance of the fruits, thereby increasing the yield per mou, and increasing the yield and income for the farmers.

The invention discloses a waste rotary kiln degradation sewage anaerobic purification combined device which comprises a fermentation part and a rotary kiln degradation part around the fermentation part, and a first-stage drainage channel is provided between the fermentation part and the rotary kiln degradation part. The fermentation part comprises a plurality of fermentation cylinders. The adjacent fermentation cylinders are communicated through water through holes formed in the lower middle portions of the cylinder walls, and vent holes are formed in the upper middle portions of the cylinderwalls between the adjacent fermentation cylinders. A first stage fermentation cylinder is provided with a water inlet and an exhaust port, the water inlet is connected to the first-stage drainage channel through a pipeline, and the exhaust port is connected with an air pipe joint. A sediment cleaning pipe is arranged at the top of each fermentation cylinder, and a water outlet is further providedat the top of a last-stage fermentation cylinder. The water outlet is connected to a safety air pressure storage tank through the pipeline. The rotary kiln degradation part includes a plurality of garbage degradation tanks. The bottom of each garbage degradation tank is provided with a plurality of drainage ditches and a second-stage drainage channel, each drainage ditch is communicated with the second-stage drainage channel, and the second-stage drainage channel is communicated with the first-stage drainage channel.

The invention belongs to the technical field of agricultural fertilizers, and relates to a flue-cured tobacco base fertilizer capable of reducing the application amount of a chemical bactericide pesticide, and a preparation method and application of the flue-cured tobacco base fertilizer. The flue-cured tobacco base fertilizer comprises the components in parts by weight on a dry basis: 0.1-1 part of tobacco seed oil, 5-40 parts of tobacco seed meal, 5-150 parts of sunflower straw carbide, 5-40 parts of three-section type converted weathered coal, 0.01-1 part of a microbial agent, 20-50 parts of potassium nitrate, 5-50 parts of a calcium magnesium phosphate fertilizer, 0-40 parts of a silicon calcium potassium magnesium fertilizer, 0-60 parts of mineral potassium and 0-16 parts of potassium sulfate. The prepared flue-cured tobacco base fertilizer is used for reducing the application amount of chemical bactericides used for preventing and treating black rot, black shank and bacterial wilt of tobacco roots, the application amount of the chemical bactericides can be reduced by 50%-100%, meanwhile, soil acidification and hardening cannot be caused, the properties of the acidified and hardened soil are gradually improved, and the morbidity of root and stem diseases is reduced; therefore, pesticide residues are reduced, and agricultural product safety is improved.

The present invention relates to the manufacturing technology of granular fertilizer, specifically a kind of calcium magnesium nitrate compound salt type compound fertilizer and its preparation method, calcium magnesium nitrate compound salt type compound fertilizer, the total mass of magnesium nitrate and calcium nitrate in the compound fertilizer The percentage is 50-90%, the mass percentage of crystal water is 10-50%, and the mass ratio of magnesium nitrate to calcium nitrate is 3.5-0.1:1. Compared with the prior art, the calcium-magnesium nitrate double-salt compound fertilizer and the preparation method thereof of the present invention have the following beneficial effects: (1) The calcium-magnesium nitrate double-salt compound fertilizer of the present invention has fluidity and caking resistance It is far better than compound fertilizer products obtained by blending and mechanical pressing method granulation, and the caking time of the product is more than 30 days, which brings a lot of convenience to the use of the product; (2) the preparation method of the present invention is better than the batch type The process of crystallization and then mechanical mixing and granulation has low cost, and is also suitable for continuous mass production, which provides convenient conditions for the automation of process control.

The invention discloses a degradable packaging bag for express service. The degradable packaging bag is prepared from the following raw materials in parts by weight: 80-100 parts of polypropylene, 30-50 parts of polypropyl alcohol, 5-10 parts of polylactic acid, 5-10 parts of chitin, 5-8 parts of propyl acetate, 3-5 parts of sodium hydroxide, 3-5 parts of potassium permanganate, 20-30 parts of corn starch, 10-15 parts of cellulose, 10-15 parts of calcium carbonate, 20-30 parts of a filler, 3-5 parts of ferric acetylacetonate, 3-5 parts of an inorganic pigment, 5-10 parts of a plasticizer and 2-5 parts of a coupling agent. The packaging bag for express service has a photosensitive degradation effect and a biological degradation effect. When the plastic bag is in a humid environment, propylacetate, sodium hydroxide and potassium permanganate in the plastic bag can break double bonds in polypropylene and polypropanol, the degradation speed is increased, and the degradation degree is increased.

The invention discloses an in-situ remediation agent for underground water chlorinated hydrocarbon pollution, a preparation method and application, the remediation agent comprises zero-valent iron powder, biochar, a biological carbon source, an emulsifier, a stabilizer and water, the biological carbon source comprises a short-acting carbon source, a medium-acting carbon source and a long-acting carbon source, and the remediation agent comprises the following components in percentage by weight: 20-45% of zero-valent iron powder, 8-15% of biochar, 5-10% of biological carbon source, 5-10% of emulsifier, 5-10% of stabilizer and the balance of water. The biological carbon source accounts for 15-35%, the emulsifier accounts for 1-3%, the stabilizer accounts for 0.1-0.5%, and the The method comprises the following steps: adding recyclable oil and an emulsifier into water, and fully emulsifying the recyclable oil and the emulsifier through low-speed stirring; sequentially adding the zero-valent iron powder, the biochar and the stabilizer, and stirring to uniformly mix; according to the method, industrial syrup and straw powder are added, mixing is conducted for 10-20 min at the stirring speed of 2000 r / min, remediation agent slurry is prepared, the remediation agent is injected into an underground water halogenated hydrocarbon polluted water layer at high pressure, in-situ water remediation can be achieved, efficiency is high, cost is low, and engineering application of chlorinated hydrocarbon polluted underground water is facilitated.

The invention discloses a soil testing and formulated fertilization method of alseodaphne hainanensis. The soil testing and formulated fertilization method is realized by adopting three steps of soil sampling testing, organic fertilizer formula and fertilization. Application amounts, use ages and application methods of fertilizers such as nitrogen, phosphorus and potassium are provided on the basis of reasonably applying the organic fertilizer according to the fertilizer requirement law of the alseodaphne hainanensis and the soil nutrient preserving capability. According to the soil testing and formulated fertilization method, scientific and reasonable fertilization is performed by fully utilizing a growth rule of the alseodaphne hainanensis, the utilization rate of the organic fertilizer is increased, no soil nutrient loss, unbalance, and soil acidification and pollution are caused, the yield and the economic benefit of the alseodaphne hainanensis are effectively increased, and thus the soil testing and formulated fertilization method is especially suitable for fertilization in a bamboo forest region of the alseodaphne hainanensis putting into production in commission.

The invention discloses a production method for manufacturing organic potassium fertilizer, which takes ash content processed by taking fibers such as seed shells, straw and the like as matrix as mainraw material, and the ash content is mixed with the ash content obtained by processing paper pulp for making paper, so that the organic potassium fertilizer needed by agricultural production can be prepared.

The invention discloses a planting method of inter-planting blueberries in a garlic ridge farmland. In the method, a natural organic fertilizer includes the following components, on the basis of dry weight, 40-70 parts of forestry and agricultural wastes, 3-6 parts of amino acid-chelated selenium, 20-40 parts of phosphorus-containing metamorphic rock powder being 300-450 meshes in granular size, 10-20 parts of an attapulgite powder mixture, 2-5 parts of potassium-releasing bacteria, and 3-5 parts of zirconium mullite. The attapulgite powder mixture includes, by weight, 80-120 parts of attapulgite powder, 10-20 parts of medical stone powder, 10-20 parts of coated ammonium bicarbonate, 3-5 parts of brassinolide, 20-30 parts of waste mushrooms from mushroom planting, 3-7 parts of vermiculite, 1-3 parts of waste residue of traditional Chinese medicines, and 0.3-0.5 parts of a biological composite enzyme. The blueberries planted with the natural organic fertilizer through the planting method contain various mineral elements, organic substances, proteins, amino acids and carbohydrates being beneficial to human body, The planting method has significant effects of preventing and treating plant diseases and insect pests in blueberries, can significantly increase yield of blueberries, and enables the fruits to be large and delicious.