Preparation method of organic fertilizer for preventing and treating rice root rot

Abstract

The invention discloses a preparation method of an organic fertilizer for preventing and treating rice root rot. The method is characterized by comprising the following aspects: (1) performing cooking: crushing and mixing organic raw materials such as soybean meal, soybean straw, watermelon vines, rice hulls, grape leaves and chicken manure, and performing cooking treatment; (2) preparing an inoculant: inoculating mixed strains into a sucrose solution, performing alternate irradiation by using a gamma ray and ultraviolet light, and performing enlargement cultivation on viable strains to obtainmutant strains; (3) performing fermentation: adding the mutant strains into the cooked organic material, performing mixing, placing the mixed material into a fermentation tank for fermentation; (4) performing granulation: performing low-temperature drying on the fermented organic material until the moisture content is less than 5%, and performing processing by using a granulator to prepare organic fertilizer particles; and (5) performing coating: adding polysaccharide and hydroxyethyl cellulose into a fermentation broth, performing mixing under stirring, soaking the organic fertilizer particles into the mixed fermentation broth, taking out the soaked particles, and performing drying to prepare the rice organic fertilizer.

Description

technical field [0001] The invention belongs to the technical field of organic fertilizer processing, and in particular relates to a preparation method of an organic fertilizer for preventing and treating rice root rot. Background technique [0002] Rice root rot is mainly a root disease caused by fungi, which can cause rice leaves to shrink, roots to rot, and the plant’s ability to absorb water and nutrients to decrease, causing rice to fall easily and even die on a large scale; root rot is mainly caused by rot Mold, Fusarium, Phytophthora and other pathogens are infected, and the roots are soaked in water for a long time, and the oxygen content in the soil is reduced, which provides growth and reproduction conditions for the fungus to grow; generally, pesticides such as metalapamex or copper preparations are used to treat the roots. Spraying is used for prevention and control, however, paddy field chemicals with water have limited penetration ability to the soil, and are e...

AI Technical Summary

Problems solved by technology

[0003] The present invention is aimed at the existing problems: rice root rot is generally prevented and controlled by spraying pesticides such as methylazamex or copper preparations on the roots, but the paddy fields with water have limited penetration ability to the soil and are easily lost with paddy water. , it is difficult to effectively prevent and control rice root rot; organic fertilizers do not have the effect of preventing and controlling pests and diseases, but adding pesticide ingredients to organic fertilizers has antibacterial and insecticidal effects, and its actual effect is the same as that of spraying pesticides. Can not solve the problem of low penetration of pesticides to soil