Environment-friendly agent for preventing and controlling rice blast

Abstract

The invention discloses an environment-friendly agent for preventing and controlling rice blast, wherein the environment-friendly agent comprises the following components in percentage by weight: 25-35% of folium isatidis, 20-30% of adina rubella hance, 10-25% of honeysuckle stem, 20-30% of gypsum powder and 2-4% of penicillin sodium powder. The preparation method comprises the following steps: crushing and sieving folium isatidis, adina rubella hance, honeysuckle stem and gypsum, mixing the powders, loading into a sealable container, pouring medical alcohol accounting for 4-5 times the weightof an environment-friendly agent into a container, melting, stirring while pouring, carrying out sealed soaking for 35-40 days, filtering the liquid medicine, blending 2-4% by weight of penicillin sodium powder and the environment-friendly agent, placing into the container, stirring into a water agent, sealing for 5-10 days, and bottling and packaging for later use, wherein 100-250 g of the environment-friendly agent is used per mu each time and is mixed with 25-45 kg of water, and the obtained solution is subjected to spraying prevention and treatment. According to the invention, the resultsof multiple tests show that the environment-friendly agent effectively reduces harm of rice blast, and is particularly a non-toxic, odorless and pollution-free environment-friendly agent, wherein generally the rice loss per mu is reduced by more than 120 kg.

Description

[0001] 1. Technical field [0002] The invention relates to an environment-friendly medicament for preventing and treating rice diseases, in particular to an environment-friendly medicament for preventing and treating rice blast. [0003] 2. Background technology [0004] Rice blast, including seedling blast, leaf blast, knot blast, panicle blast, and grain blast, is one of the important diseases of rice, which can cause a substantial reduction in yield, in severe cases, a 40-50% reduction in yield, or even no harvest. It is the most difficult disease to prevent and control. Especially panicle blast is the most harmful, so it is also called "broken head disease" and "ghost stuck neck". It is very prominent in sandy soil fields and Yinshan fields in mountainous areas. The phenomenon of "the grain of the dead, the valley of the dead" occurs every year, and serious cases can cause a large area of ​​rice fields to lose their harvest. In order to overcome this difficult problem, t...

AI Technical Summary

Problems solved by technology

In order to overcome this difficult problem, the inventor began to explore and research in 1984, and used various plant Chinese herbal medicine tests to prevent and treat rice blast-panicle blast, but the effect was not obvious. Until 2003, 95% medical alcohol and Gypsum and water bayberry, water willow and other Chinese herbal medicines have a certain effect in the prevention and treatment, and have obtained a national invention patent (patent number ZL200810031151.8)