5611results about "Superphosphates" patented technology

The invention describes a new method for treating sludge, which can result in the production of high nitrogen organically-augmented inorganic fertilizer that incorporates municipal sludges or biosolids or organic sludges that can compete with traditional fertilizers such as ammonium phosphate, ammonium sulfate and urea on the commodity fertilizer marketplace. The method takes advantage of the thixotropic property of dewatered biosolids or organic sludge to create a pumpable paste-like material from the biosolids or organic sludge that is then treated with an oxidizer to reduce odorant effects and an acid. This mix is then interacted with concentrated sulfuric and or phosphoric acids and an ammonia source or alternatively a hot or molten melt or salt of ammonium sulfate/phosphate to form a fertilizer mix. The present invention controls the heat, atmospheric pressure and retention time of the fertilizer mix in the reaction vessel. When a fertilizer melt is formed ammoniation is subsequently completed by the specific use of vaporized ammonia. The invention can also be an add-on to commercial production of ammonium salts. The fertilizer produced by the present invention contains more than 8 wt. % nitrogen and preferably 15 wt. % nitrogen. The invention is oriented to be tailored to the biosolids production for individual municipal waste treatment plants in order to keep the fertilizer manufacturing plants of the present invention small with a minimization of logistics and liability.

The invention discloses a fertilizing and conditioning agent for improving the saline alkali soil, and the fertilizing and conditioning agent includes an organic material, an inorganic material and a regulator for the plant growth, wherein, the weight proportion between the organic material and the inorganic material is 3:2 to 1:1. The organic material is fermented and maturated by one or a plurality of such organic matters as town living sludge, excrements of livestock and poultry, and furfural slag; and the inorganic material is formed by one or a plurality of such industrial waste and materials as desulfurized gypsum, phosphogypsum, and ammonium sulphate. Moreover, appropriate growth regulator for plant which is added according to the growing requirements can not only improve the saline alkali soil and fertilize the soil, but also can improve the plant growth and promote the plant to grow well as well as providing an effective path for promoting the recycling of the waste resources and reducing the secondary pollution to the town and the country.

A granular agrochemical composition is disclosed including a granular core material having a water soluble portion with a first coating layer applied on the surface of the core material and a second coating layer applied on the surface of the first coating layer. The first coating layer includes a wax composition having a biologically active ingredient incorporated therein and the second coating layer includes a polymeric composition. The granular agrochemical composition exhibits a controlled rate of release of the biologically active ingredient therefrom over a period greater than about 30 days from the date of initial exposure of the granular composition to moisture whereby essentially all of the biologically active ingredient incorporated in the wax material of the first coating layer is released from the granular composition before the water soluble portion of the granular core material is released from the granular composition.

This invention relates to compositions compatible with liquid fertilizers and methods of use thereof.

The invention discloses a rice slow-release fertilizer and a preparation method thereof. The rice slow-release fertilizer comprises the following raw material components by weight: 25-40 parts of compound bacteria, 500-600 parts of an organic material, 800-1200 parts of an inorganic material, 100-150 parts of a fertilizer core, 20-30 parts of trace elements, 120-150 parts of additives, 70-80 partsof cellulose and 2500-3500 parts of a solvent.

The invention discloses a selenium-enriched rice planting method. The method includes the following steps of land selecting, field finishing, seed treatment, sowing and seedling raising, seedling transplant, fertilizer management in the later period, irrigation treatment and selenium-enriched rice harvesting. Before seedlings are transplanted, selenium-enriched base fertilizer in a complex state is applied in the rice field, and a certain selenium source is provided for rice; at the beginning of panicle emergence and flowering of rice and grouting, the selenium-enriched compound fertilizer is applied in the rice field again, the selenium-enriched fertilizer is evenly distributed around roots of the seedlings in the growth process, the selenium in a complex state from soil is absorbed by the roots of the plants and then enters the inner cycle systems of the plants and participates in synthesis of protein through the path from stems to leaves to flowers and fruits, and finally, the selenium in an ionic condition from soil is stored in the seeds in the form of selenoprotein. The selenium-enriched rice tastes good and is high in nutrient matter content, and the content of the selenium of the rice can reach over 0.2 mg/kg and meets the national selenium-enriched standard.

A urea fertilizer having reduced ammonia volatilization upon application to soil including a central particle having an outer surface and comprising ammonia volatilization inhibiting compounds containing one or more of boron and iodine, and a coating of urea on the outer surface of the central particle, and further a process of making the fertilizer including the steps of: granulating ammonia volatilization inhibiting compounds containing one or more of boron and iodine, with a binder to produce volatilization inhibitor particles; screening the inhibitor particles to a preselected particle size; spraying melted urea onto the surface of the inhibitor particles to produce a coating on the inhibitor particles; granulating the coated inhibitor particles with sprayed melted urea to produce granules of urea coated central volatilization particles; and cooling the granules.

The invention is directed to processes for treating biosolids that result in high-value, nitrogen-containing, slow-release, organically-augmented inorganic fertilizer that are competitive with less valuable or more costly conventional commercially manufactured fertilizers. The process involves conditioning traditional waste-water biosolids and processing the conditioned biosolids continuously in a high throughput manufacturing facility. The exothermic design and closed loop control of the primary reaction vessel decreases significantly the amount of power necessary to run a manufacturing facility. The process utilizes green technologies to facilitate decreased waste and enhanced air quality standards over traditional processing plants. The fertilizer produced from recovered biosolid waste is safe and meets or exceeds the United States Environment Protection Agency (USEPA) Class A and Exceptional Quality standards and is not subject to restrictions or regulations.

The present invention relates to novel phosphate solubilizing strains as well as compositions and methods thereof for increasing the availability of phosphate for plants.

This invention involves a mushroom cultivation material and production process, it belongs to the field of bio-engineering technology. This mushroom cultivation material contains Chinese crud drug residue 30 ~ 40 share, cotton shells 50 ~ 60 share, urea 1 ~ 2 share, wheat bran 5 ~ 7 share, potassium sulfate 0.5 to 1.5 share, calcium superphosphate 0.5 to 1.2 share, zinc sulfate, magnesium sulfate, borax, ferrous sulfate together for 0.4~1 share, calcined lime 0.5 to1.3 share. Because of using materials containing substances such as Chinese crud drug residue, the produced mushroom cultivation material of this invention has antibacterial effect. Through the implementation of the invention reached so no longer waste residue cause environmental pollution, reduce the factory heavy economic burden caused by the sewage problem.

A fertilizer composition including a base fertilizer granule with a barrier coating and one or more micronutrients. The base fertilizer material is coated with a barrier coating, and then a coating of one or more micronutrients. Alternatively, the base fertilizer material is coated with a barrier coating having discrete particles of micronutrients dispersed throughout. The barrier coating acts to physically and chemically isolate the micronutrient particles from the underlying fertilizer composition such that more of the micronutrient is available to the soil solution, and ultimately to the root zone of the plant.

The invention provides a process for the production of a fertilizer, the process comprising intimately mixing urea and a lignin compound thereby providing a blend, and heating the blend. In an embodiment of the process of the invention, there is provided a process for the production of an organomineral fertilizer, the process comprising: intimately mixing mineral fertilizer material, urea, a lignin compound and organic fertilizer material thereby providing a blend, and heating the blend. The invention provides also fertilizers that are not obtainable according to the process of the invention.

The invention discloses a stropharia rugoso-annulata cultivation method. The method comprises the following steps of season arrangement, cultivation material selection, site selection, material collection, cultivation material treatment, sowing and mycelium cultivation, spawn running period management, earthing method and management after earthing, fruiting period management, harvesting, pest and disease control and processing. The method has the advantages that the stropharia rugoso-annulata cultivation method fully utilizes the straw resource, the specific steps and conditions of cultivation are particularly limited, and the yield of stropharia rugoso-annulata can be effectively increased; meanwhile, by adjusting the cultivation proportion of different kinds of straw, growth and development of the stropharia rugoso-annulata can be effectively controlled, the stropharia rugoso-annulata is high in yield, excellent in quality and capable of adapting to the market requirement.

The invention discloses a multifunctional biological compound fertilizer as well as a preparation method and an application thereof. The multifunctional biological compound fertilizer contains 18-20g*kg<-1> of organic matters, 0.2-0.5 hundred million CFU*g<-1> of total functional bacillus, 40 to 50g*kg<-1> of total N(N), 20-30g*kg<-1> of total P(P2O5) and 50-60g*kg<-1> of total K(K2O). The biological compound fertilizer is prepared by adopting rotten and dried organic fertilizer as an absorbing carrier, providing a good environment for storing and playing effect of the bacillus with specific functions and adding a small amount of fertilizer on the basis of the good environment. The multifunctional biological compound fertilizer integrates the advantages of organic fertilizer, microbial inoculum and fertilizer, and remains a large amount of beneficial microorganism. The multifunctional biological compound fertilizer has obvious effects of increasing production and yield when being applied in vegetables and grain crops, has effects to the crops of the season, has obvious promoting effects to the crop of the second season, has the effects of optimizing the microbial structures in soil and improving the ecological quality, can solve continuous cropping and soil with problems and belongs to an environment-friendly fertilizer.

The invention relates to an oyster mushroom growing medium by the utilization of herb residue and biogas residue, and a preparation method thereof. The components of the growing medium are: herb residue, biogas residue, lime powder, gesso, urea, calcium superphosphate, and wheat bran. By combining biogas residue with herb residue, and complementing proper auxiliary materials, the invention ensures that the medium nutrient is complementary to the granule size, thus hitting the target of normal bacteria growing, normal mushroom growing, and stable production without the addition of other raw materials. The invention also provides a method for preparing the growing medium. The cost of the oyster mushroom growing medium is 80 percent lower than that of cottonseed shell raw material and around 60 percent lower than that of straw materials such as corn cob. Usually, the biological efficiency is about 120 percent.

The invention relates to an organic fertilizer and its productive technique, which belong organic fertilizer and its productive technical field. Its characteristics is: the content of N+P2O5=K2Oí¦6%,that of organic substanceí¦30%; nitrogen; beneficial microbe bacterium power whose nitrogen contentí¦46%, 2 3 whose P2O5 contentí¦14%, 4 : 5 whose K2O contentí¦50%; Its productive technique is: mix and sir -make particle- dry- cool-package multi-functional biological organic-inorganic compound fertilizerinorganic nutrition, organic substanceeffective germs í¦20,000,000,000 / portion, organic substance content í¦25%.

The invention discloses a chicken manure fermentation organic fertilizer, which is prepared from the following raw materials: chicken manure, straw powders, konjak flour, corn flour, cellulose, zeolite, humic acid, potassium dihydrogen phosphate, urea, peat soil, a leavening agent, a soil improvement agent, a film coating agent, potassium sulfate, borax and calcium superphosphate. The above raw materials are subjected to the integrated treatment of anaerobic fermentation and aerobic fermentation, so that the organic fertilizer is prepared through the fermentation of the chicken manure. The chicken manure fermentation organic fertilizer is complete in fermentation effect, and is capable of killing plant pathogenic bacteria, eggs, weed seeds and other harmful microorganisms in the chicken manure, and generating a large amount of nutrients beneficial to the plant growth and the plant absorption. The process is simple and easy to implement. The raw materials of the prepared organic fertilizer are rich in nutrition. Meanwhile, the prepared organic fertilizer is high in fertilizer efficiency and rich in nutrition, and can coordinate the soil nutrient balance, improve the soil nutrient, promote the plant growth, increase the plant yield and improve the plant quality.

The invention provides a method using waste residues generated by livestock and poultry wastewater treatment to produce a soil conditioner. The method includes the steps of firstly, dewatering the waste residues obtained by livestock and poultry wastewater treatment to obtain an intermediate product A; secondly, adding a water content regulator to regulate water content, and adding a pH regulator to regulate pH to be 6-10 to obtain an intermediate product B, wherein the water content of the intermediate product B is 30-70%, and the water content regulator is crushed one or more agricultural and forestry waste; thirdly, adding nutrient additives and heavy metal curing and stabilizing chemicals into the intermediate product B, and evenly mixing to obtain an intermediate product C, wherein the nutrient additives are salt containing nitrogen, phosphorus or/and potassium; fourthly, performing solid fermentation on the intermediate product C at 55-60 DEG C for more than 100 hours, and drying to obtain the soil conditioner.

The invention relates to a composition for improving soil, in particular relates to a saline-alkali soil conditioner. The saline-alkali soil conditioner is prepared by mixing the following components by weight percent: 20%-35% of sulfur powder, 20%-30% of humic acid, 5%-10% of bentonite, 20%-25% of magnesium sulfate heptahydrate, 8%-12% of calcium superphosphate, 1%-2% of zinc sulfate heptahydrate and 2%-3% of boric acid. The saline-alkali soil conditioner can be used for regulating acid-base level of the soil, and effectively supplementing microelements in the soil, improving the nutritional deficiency symptom of crops, chelating harmful heavy metal elements in the soil, reducing saline and alkali degree, promoting the soil to form a granular structure, improving root growth environment of crops, enhancing saline and alkali resistance of crops, disease resistance and cultivation of resilience, reducing the harm of saline and alkali to plant roots, and releasing the effective phosphorous solidified by the soil, increasing soil fertility, holding water and saving fertilizer so as to finally and completely improve the soil, recover the soil fertility, increase both production and income and improve crop quality and utilization rate of the fertilizer.

The invention relates to a planting method of selenium-rich passiflora edulis. The variety of the planted passiflora edulis is Tainung No1. The planting method comprises steps as follows: land selection, land preparation, field planting, shelving, training and pruning, fertilizer and water management, field management and pest control. According to the planting method of the selenium-rich passiflora edulis, a selenium-rich fertilizer fermentation broth obtained through fermentation of inorganic selenium fertilizer is sprayed to leaf surfaces and fruits of the passiflora edulis, the average single fruit weight of the produced passiflora edulis is 63 g, the maximum single fruit weight is 125 g, the fruit juice is reddish yellow and has strong fragrance, the acidity is 2.14%, the highest selenium content can reach 12 mu g/kg, the sweetness reaches 23% Brix, the fruit juice rate is up to 34%, the color and luster are bright, the yield is high, pollution is prevented, and five crops are harvested every year.

The invention relates to an improvement method for soil of a saline and alkaline land. The improvement method mainly comprises the following treatment steps of: carrying out on-site investigation on a plot to be improved; taking a water sample; carrying out soil sample analysis; carrying out water sample analysis; designing an improving scheme; carrying out an indoor leaching test: fully mixing and stirring a soil bulking agent, a chemical amendment and raw soil, filling a soil column with the mixture and watering the soil column to conduct a leaching experiment, wherein the soil bulking agent is added in an amount of 5-20% by volume of the saline-alkaline soil; the chemical amendment is added in an amount of 0.5kg/m2 to 5kg/m2 based on the volume fo the saline-alkaline soil; uniformly stirring the soil bulking agent, the chemical amendment and the saline and alkaline soil according to the ratio; setting a salt eliminating trench; burying a salt eliminating device; carrying out water irrigation and salt elimination; and testing the physical and chemical indexes of leaching water and soil. The invention provides the improvement method for soil of the saline and alkaline land. On the premise of not replacing soil, by virtue of adding the saline and alkaline soil amendment and after operations of engineering stirring and water irrigation and salt elimination, the saline and alkaline land is thoroughly improved, so that the saline and alkaline land can be used for agricultural production or afforestation of city.