Herbicide safety additive

Abstract

The invention relates to an additive of weed killer, wherein it is formed by 0.01-5% 4-hydroxycoumarin and 95-99.99% abies. The inventive additive can be used with weed killer, to accelerate the decomposition of left weed killer, and improve the effect of killer. The invention can eliminate bad root, low growth, etc. And the tests have proved its effect.

Description

technical field [0001] The invention relates to a herbicide safety additive. Background technique [0002] my country is one of the big agricultural countries with frequent agricultural biological disasters and fragile agricultural ecological environment. Our country has a vast territory, different climatic conditions, and a wide variety of farmland weeds. There are more than 50 important weeds that cause harm to agricultural production, causing serious There are more than 20 kinds of harmful weeds. The area of ​​weeds in my country is about 60 million hectares every year, and the severely damaged area is 30 million hectares. The direct economic loss is as high as more than 20 billion yuan. At present, the output of herbicides registered in my country accounts for 26.4% of the total pesticide production. In January 2005, the output of herbicides in my country increased by 46.4% year-on-year. With the development of research and production of herbicides in my country, the pro...

AI Technical Summary

Problems solved by technology

Recessive phytotoxicity mainly occurs when wheat and other crops are sprayed with herbicides at the seedling stage, and imported or domestic excellent herbicides are selected. Although these herbicides do not cause direct phytotoxicity, they will affect the reproductive growth of wheat and other crops. The root system of wheat and other crops is underdeveloped, the tillering is reduced, the disease resistance is poor, and the incidence of disease is particularly high. Generally, the crop yield is reduced by more than 7-20%.

Intuitive phytotoxicity is firstly due to the selection of imported or domestically produced low-quality herbicides during spraying, causing severe crop yield reduction or failure; In addition, due to the latent phytotoxicity caused by the accumulated residues of chemical herbicides used in consecutive years exceeding the standard, this year, an outbreak of phytotoxicity occurred on more than 60 million mu of land in Heilongjiang Province in Northeast my country, and herbicides were promoted in Northeast China relatively early. Chemical residues in the soil exceed the standard, resulting in dead seedlings, rotten roots, shrunken growth, stiff seedlings, yellow leaves, dry tips, photosynthetic disorders, dehydration, and defertilization of soybeans and rice seedlings.