Preparation method of slow release compound fertilizer capable of reducing disease rate of rice

Abstract

The invention discloses a preparation method of slow release compound fertilizer capable of reducing the disease rate of rice. The preparation method comprises steps as follows: ammonium chloride, carnallite, potassium nitrate, kiln ash potassium fertilizer, borax, EDTA manganese chelate, EDTA iron chelate and EDTA manganese chelate are mixed, water is added, the mixture is heated and stirred, light calcium carbonate, mica powder, coal slag and medical stone powder are added, the mixture is continuously stirred, and a premix is obtained; horse manure, peanut vines, bamboo charcoal powder, teaseed meal, guano and mushroom residues are mixed, the obtained mixture is heated, kept at the constant temperature and cooled, the premix and an antimicrobial agent are added, the mixture is stirred uniformly, cooled, granulated and air-dried, a coating agent is sprayed to the surface, drying is performed, and the slow release compound fertilizer capable of reducing the disease rate of rice is obtained. The antimicrobial agent is prepared with a process as follows: N-methyl-2,2'-diaminodiethylamine and dichloromethane are mixed uniformly, a sodium hydroxide solution is added, the mixture is stirred, the temperature is adjusted, acryloyl chloride is added and stirred, evaporation is performed, an obtained solid is dissolved in acetonitrile, hydroquinone is added, the mixture is heated, stirred and dried, and the antimicrobial agent is obtained.

Description

technical field [0001] The invention relates to the technical field of fertilizers, in particular to a method for preparing slow-release compound fertilizers for reducing rice disease rates. Background technique [0002] Rice is native to tropical Asia, and after being widely planted in China, it gradually spread to all parts of the world. According to different methods, rice can be divided into indica rice and japonica rice, early rice and middle and late rice, glutinous rice and non-glutinous rice. Chinese scientist Yuan Longping has made great contributions to the research of hybrid rice and is known as the "father of hybrid rice". [0003] At present, in the process of rice planting, in order to increase the yield of rice, a large amount of chemical fertilizers are applied, causing severe pests and diseases, and the quality of rice is obviously reduced. Contents of the invention [0004] Based on the technical problems existing in the background technology, the prese...

AI Technical Summary

Problems solved by technology

[0003] At present, in the process of rice planting, in order to increase the yield of rice, a large amount of chemical fertilizers are applied, the pests and diseases are serious, and the quality of rice is significantly reduced.