A kind of high-efficiency and environment-friendly composition for preventing and treating rice diseases and its application

Abstract

The invention relates to an environment-friendly composition capable of effectively controlling rice diseases such as rice false smut, banded sclerotial blight, rice blast and bacterial leaf blight. The environment-friendly composition is prepared from the following raw materials in parts by weight: 10-20 parts of chitosan oligosaccharide, 5-10 parts of composite algal polysaccharides, 30-50 partsof Chinese herbal medicine active extracts, 8-15 parts of surfactants, and 200-400 parts of water. Through the synergistic effect of the chitosan oligosaccharide, the composite algal polysaccharidesand the Chinese herbal medicine active extracts, the diseases such as the rice false smut, the banded sclerotial blight, the rice blast and the bacterial leaf blight can be remarkably controlled, andthe production capacity of rice is improved; and the composition is safe, environmentally friendly, free of pollution to the environment, and beneficial to sustainable development of the rice plantingindustry.

Description

technical field [0001] The present invention relates to a high-efficiency and environment-friendly composition for preventing and treating rice diseases and its application method, in particular to a green and environment-friendly composition capable of effectively preventing and treating diseases such as rice false smut, sheath blight, rice blast and bacterial blight , belongs to the technical field of agricultural biological control. Background technique [0002] Rice is the main food crop in my country and occupies an important position in agricultural production. It has become the most widely planted food crop in my country. The prevention of its diseases is of great significance to increase rice production. At present, the most common diseases in rice cultivation mainly include rice blast, sheath blight, rice smut, and bacterial blight. Of which: Ascomycetes ( Magnaporthe oryzae ) caused by rice blast is one of the main diseases of rice in my country. Leaf blast and...

AI Technical Summary

Problems solved by technology

For example, the patent application number 201310629080.2 discloses a biological fungicide for rice diseases. The active ingredient of the fungicide is cinnamon essential oil, supplemented with surfactants and co-emulsifiers, but according to the disclosed knowledge, the active fungicide mainly prevents rice Leaf blight; the patent of application number 201810266023.5 discloses a plant fungicide for preventing and treating rice diseases, which consists of streptomycin sulfate and 3-O-(N-( 5-((phenyl)mercapto)-1,3,4-thiadiazol-2-yl)-acetamido-2-yl)-3',4',5',5,7-pentamethoxy Composed of myricetin (A2), the formulation of the rice disease control drug is selected from wettable powder, suspension concentrate, and soluble powder. It can be found that the plant fungicide is still based on compound drugs, which not only increases the cost of the fungicide, but also has Serious hidden danger of environmental pollution

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