Microbial agent used for degrading quinclorac herbicides

Abstract

The invention discloses a microbial agent used for degrading quinclorac herbicides. The microbial agent takes several strains of bordetella, arthrobacterium, bacillus megatherium, burkholderia cepacia, ochrobactrum anthropi, pseudomonas, alcaligenes faecalis, aspergillus niger and neurospora and cellulase, amylase, protease, lipase and a biological accelerating agent as raw materials, and fermented solutions obtained after the several strains of the bordetella, the arthrobacterium, the bacillus megatherium, the burkholderia cepacia, the ochrobactrum anthropi, the pseudomonas, the alcaligenes faecalis, the aspergillus niger and the neurospora undergo fermentation culture are mixed to form a mixed fermented solution, after thalli are collected by centrifugation from the mixed fermented solution, skimmed milk and sucrose are added, freeze drying is performed, and then, the thalli are compounded with the cellulase, the amylase, the protease, the lipase and the biological accelerating agentto obtain the microbial agent.

Description

technical field [0001] The invention belongs to the field of agricultural technology, in particular to a microbial bacterial agent for degrading quinclorac herbicides. Background technique [0002] Quinclorac is a highly selective hormone-type herbicide, which has the advantages of being safe to rice and having special effects on barnyard grass. It is widely used in agricultural production, but the residual time of quinclorac herbicides is relatively long and it is not easy to degrade. Easy to remain in the soil. It has been reported that quinclorac herbicides can remain in the soil for 2-3 years, even up to 4 years, and it is easy to cause phytotoxicity to subsequent crops in continuous cropping or rotation crops, especially some vegetables such as umbels. Sensitive crops such as economic crops of Solanaceae and Solanaceae will produce phytotoxicity, resulting in reduced yield, or even no harvest in severe cases. In addition, quinclorac can also be enriched in agricultura...

AI Technical Summary

Problems solved by technology

[0002] Quinclorac is a highly selective hormone-type herbicide, which has the advantages of being safe to rice and having special effects on barnyard grass. It is widely used in agricultural production, but the residual time of quinclorac herbicides is relatively long and it is not easy to degrade. easy to remain in the soil

It has been reported that quinclorac herbicides can remain in the soil for 2-3 years, even up to 4 years, and it is easy to cause phytotoxicity to subsequent crops in continuous cropping or rotation crops, especially some vegetables such as umbels. Sensitive crops such as Solanaceae and Solanaceae economic crops will produce phytotoxicity, leading to yield reduction, serious or even failure

In addition, quinclorac can also be enriched in agricultural products, causing problems such as food safety

Studies have shown that long-term consumption of agricultural products contaminated by organochlorine pesticides will lead to the accumulation of pesticides in the body, which may lead to gene mutation, cancer, deformity, etc.

Images