Weeding composite containing fentrazamide and pyridate

Abstract

The invention relates to the field of pesticide herbicides, and particularly discloses a weeding composite containing fentrazamide and pyridate. The weeding composite containing fentrazamide and pyridate comprises the effective components of fentrazamide and pyridate in a weight ratio of 1:89 to 89:1. The weeding composite containing fentrazamide and pyridate has the benefits that firstly, the herbicide controlling spectrum is wide: the weeding composite is suitable for prevention and treatment of various weeds in various crops, in particular in paddy fields, and one-time herbicide application can effectively control the weed harm of the whole growing period of the paddy fields; secondly the weeding composite is safe to rice and afterreap crops: even though the usage amount per mu is five times of proposed usage amount, the pesticide hazard is prevented, so that the herbicide application cost is reduced, and the effect on the afterreap crops is also reduced; thirdly, the antagonistic effect is prevented: the weeding composite has synergistic effect on the herbicidal activity of the weeds, and the weed control synergistic effect is remarkable; and fourthly, the cost is low, and the use is convenient.

Description

(1) Technical field [0001] The invention relates to the field of pesticide herbicides, in particular to a herbicidal composition containing tetramen and pyridazide. (2) Background technology [0002] Weeds are an important part of the agricultural ecosystem, and they always compete with crops for glory, fertilizer and water, and are one of the important factors leading to crop growth and yield reduction. In recent years, with the changes in cultivation systems, fertilization and sowing methods, weed damage in paddy fields has become very prominent, causing great losses to crop production every year. In addition, weed communities and dominant populations have also changed. Brome bistica, Sagittarius japonica, Echinacea chinensis, Columba chinensis, Polygonum cloves have risen to dominant populations, and some have become vicious weeds. In order to reduce the loss of crops and increase the average annual yield of paddy fields, it is necessary to quickly and effectively contro...

AI Technical Summary

Problems solved by technology

The current method of controlling weeds in farmland is mainly spraying herbicides. A single type of herbicide has a narrow herbicidal spectrum, while a multi-component herbicidal composition can expand the herbicidal spectrum.

[0003] Metrazil is a new type of carbamoyl tetrazolinone herbicide created and developed by Bayer Corporation of Japan. In actual application, Metrazen has a faster weeding speed and can inhibit the growth of weeds after application. It has excellent control effect on gramineous weeds and sedge weeds in paddy fields, but the herbicide is only effective on some broad-leaved weeds, and has poor effect on Polygonum lilac, Echinochloa chinensis, Cyperus chinensis and Alisma weeds , cannot completely control broadleaf weeds in rice fields

[0005] Up to now, have not yet found the report of the pesticide herbicidal composition that is compounded by tetramfen and pyridazole

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