Dual enzymes and double-enzyme serial fertilizer as well as application thereof in agriculture

Abstract

The invention relates to double enzymes, which are characterized by comprising double enzymes and serial fertilizers of urea, a compound fertilizer (a mixed fertilizer), a bulk blending fertilizer, diammonium phosphate, monoammonium phosphate, a nitrophosphate fertilizer and a nitric phosphate-potassium fertilizer, wherein in terms of the total weight of the double enzymes, the content of the double enzymes is 0.01-15wt%, and the total content of the urea, the compound fertilizer (the mixed fertilizer), the bulk blending fertilizer, the diammonium phosphate, the monoammonium phosphate, the nitrophosphate fertilizer and the nitric phosphate-potassium fertilizer is 99.99-85wt%; and the double enzymes are prepared by mixing a main enzyme, namely metalloprotease, with an auxiliary enzyme according to the proportion of (1-30%):(1-35%). The invention also relates to a preparation method of a double-enzyme serial fertilizer, which comprises the steps of: directly and uniformly mixing the double enzymes with molten serial fertilizer slurry or a powdery serial fertilizer, or uniformly adding the double enzymes into the serial fertilizer materials after the processing of a drying device in the production process of the double enzymes; and other processes for the serial fertilizers, such as powdery or granular double-urea, a double-enzyme compound fertilizer (mixed fertilizer), a double-enzyme bulk blending fertilizer, double-enzyme diammonium phosphate, double-enzyme monoammonium phosphate, a double-enzyme nitrophosphate fertilizer, and a double-enzyme nitric phosphate-potassium fertilizer, are similar the production process of the serial fertilizers. Besides, the invention also relates to the application of the double-enzyme serial fertilizers to field crops, economic crops, fruits and vegetables and flowers in the agriculture.

Description

Technical field: [0001] The present invention relates to a series of fertilizers including double enzymes and urea containing double enzymes, compound fertilizer (compound fertilizer), blended fertilizers, diammonium phosphate, monoammonium phosphate, nitrate phosphate fertilizer and phosphorus potassium nitrate fertilizer, and provides double enzymes and The preparation method of these double-enzyme urea, double-enzyme compound fertilizer (compound fertilizer), double-enzyme mixed fertilizer, double-enzyme diammonium phosphate, double-enzyme monoammonium phosphate, double-enzyme nitrate phosphate fertilizer, double-enzyme nitrate phosphorus potassium fertilizer and its application in agriculture effect on the application. technical background: [0002] Now urea, compound fertilizer (compound fertilizer), blended fertilizer, diammonium phosphate, monoammonium phosphate, nitrate phosphate fertilizer, nitrate phosphorus potassium fertilizer and other chemical fertilizers are w...

AI Technical Summary

Problems solved by technology

[0002] Now widely use urea, compound fertilizer (compound fertilizer), blended fertilizer, diammonium phosphate, monoammonium phosphate, nitrate phosphate fertilizer, nitrate phosphorus potassium fertilizer and other chemical fertilizers. Since scientific fertilization is not yet possible, more than 10 million tons of fertilizers are produced every year The loss of resources not only causes a great waste of resources but also pollutes the environment, the atmosphere and water bodies

In order to reduce the pollution of chemical fertilizers to the soil and the environment and improve their utilization efficiency, those skilled in the art have made many modifications to fertilizers such as urea, such as the development of dihydroamine urea, formaldehyde urea, polymer-coated urea, sulfur-coated Urea, slow-release compound fertilizers, etc. are all for slow-release and controlled-release of urea. So far, the results have not been great, and they cannot be widely used in agriculture.

The reason is that most of the slow and controlled room urea produced in the world do not have a relatively stable controlled release time, and the coating material of the coated urea accounts for 3 to 18% of the weight of the urea, which not only affects the normal nitrogen content of the urea, but also causes some difficulties. Biodegradable macromolecule chemicals cause secondary pollution to the soil, and there is no uniform evaluation of their effects, making it difficult to promote their use on a large scale

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