Method for suppressing growth of paddy field weeds by virtue of rice straw powder and myxobacteria

Abstract

The invention provides a method for suppressing the growth of paddy field weeds by virtue of rice straw powder and myxobacteria. The method comprises the following steps: crushing dry rice straws, and sieving and applying rice straw powder into field blocks; inductively separating myxobacteria from soil in a paddy field by adopting a rabbit manure induction method, purifying the myxobacteria, performing enlarging cultivation, mixing the myxobacteria and sterilized crushed rabbit manure, and applying the mixture into the field blocks applied with the rice straw powder to suppress the growth of the paddy field weeds by virtue of interaction of the rice straw powder and the myxobacteria. According to the method, a novel paddy field weeding method which is easy to operate, low in cost and high in ecological safety is established by the technologies, and a reference for the utilization and the development of green and safe weeding of the paddy field can be provided.

Description

technical field [0001] The invention relates to a method for inhibiting the growth of weeds in paddy fields by adding sticky bacteria to rice straw powder, and belongs to the field of biotechnology. Background technique [0002] The harm of weeds in farmland to crop yield and quality is a worldwide problem. Rice is one of the most important crops in my country. In 2014, the sown area of ​​rice in my country was 30.31 million hectares. At the same time, the types of weeds in rice fields in my country are also diverse, including broad-leaved weeds (81 species), Cyperaceae (28 species), Gramineae (15 species) and algae weeds (3 species), while These weeds harm about 15 million hectares of paddy fields in China every year, accounting for about 50% of the total rice planting area. The existence of weeds in paddy fields can reduce rice production by 5% to 15%, and in severe cases it can reach 15% to 30%, or even lose rice. receive. The annual loss of rice due to weed damage in th...

AI Technical Summary

Problems solved by technology

However, this unrestricted large-scale application of chemical herbicides has brought great hidden dangers to the ecological environment, resulting in serious pollution problems, increasing resistance of farmland weeds to herbicides, and herbicide residues in agricultural products. Negative impacts such as reports of exceeding the standard continue to spread and become more and more prominent

Among them, the increasing resistance of farmland weeds to herbicides makes the total amount of herbicides used in the agricultural cultivation management process more and more high, and the development of highly toxic herbicides is also increasing, resulting in vicious environmental damage The problem is difficult to recover in the short term; the pollution of the pedosphere, hydrosphere and even the atmosphere is also increasing, biodiversity is also being destroyed, food safety hazards are becoming more and more serious, and ultimately seriously affect the survival and health of human beings

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