Pesticide for preventing and treating paddy field weeds as well as preparation method thereof

Abstract

The invention discloses a pesticide for preventing and treating paddy field weeds as well as a preparation method thereof. The pesticide contains the following components by weight percent: 6-9 percent of mefenacet, 0.4-0.6 percent of pyrazosulfuron-ethyl, 77-84.5 percent of ammonium sulfate and 10 percent of efficient additives. The preparation method comprises the following steps: adding the pyrazosulfuron-ethyl, the mefenacet, the ammonium sulfate and the efficient additives into a certain quantity of water and mixing; agitating for a period of time and palletizing; and finally filtering and packing. Compared with an undependably-used single preparation, the pesticide has the beneficial effects that the consumption quantity is greatly reduced, the synergistic effect is remarkable, the pollution caused to environment can be reduced, and weeds growing for one year or years in a paddy field can be effectively prevented and removed.

Description

technical field [0001] The invention relates to a pesticide composition and a preparation method thereof, more precisely, relates to a pesticide composition capable of preventing and treating weeds in paddy fields, and belongs to the technical field of pesticides. Background technique [0002] Rice is an important food crop in my country, its sown area accounts for about 1 / 3 of the sown area of ​​food crops, and the total output of rice accounts for about 45% of the total food output. As rice grows, weeds compete with crops for sunlight, nutrients, and sometimes water, reducing crop yields. Timely grass control is needed to avoid loss of yield in one season and reduced seed production in the next season. Direct-directed rice is becoming more and more popular among farmers because it saves a lot of labor and cost. As farmers gradually adopt direct-directed rice and water resources become more and more tense, weed control is becoming more and more important. At present, the ...

AI Technical Summary

Problems solved by technology

[0005] However, after years of use of bensulfuron-methyl and butachlor, weeds have developed strong resistance, and their control effects are not as good as before, seriously affecting the yield of rice.

Moreover, each component can only remove part of the weeds, and it needs to be used in conjunction with other agents to achieve the desired weeding effect, which undoubtedly increases the cost of planting and is not conducive to environmental protection.