Nitrogen fertiliser containing ureic, ntric, ammonia and organic nitrogen, with gradual solubility and progressive nitrification, and, process of obtaining nitrogen

摘要

"Nitrogen fertilizer containing urea nitrogen, nu00ectrico, ammonia and organic, solubility, gradual and progressive nitrification, and.Process for obtaining the same "the solubility characteristics of the gradual and progressive nitrification are obtained when put in contact with the fertilizer nitrogen associated with physico chemically withA silicate and / or an inorganic sulfate, which allows for the gradual release of different forms of nitrogen, both by the action of adsorption, absorption of the silicates.As the appearance of a membrane formed by organic insoluble calcium sulfate.The process of obtaining is based on mixing, in a mixer reactor - sulfate, urea, ammonia and silicate, adding after a source of nitrate anion (~ 3 ~ ^ - ^)Keeping the reaction in a vacuum system effectively to add finally a source of organic nitrogen. Figure 1.