Rice weeding composition

Abstract

The invention relates to a rice weeding composition containing flucetosulfuron and one of isoproturon, bentazone and fenoxaprop-p-ethyl. An active ingredient of the rice weeding composition is formed through compounding flucetosulfuron and one effective ingredient of isoproturon, bentazone and fenoxaprop-p-ethyl; and the weight ratio of flucetosulfuron to one of isoproturon, bentazone and fenoxaprop-p-ethyl is (0.1-80) to (80-0.1). The rice weeding composition provided by the invention can be used for preventing and killing annual grassy weeds of paddy fields and also can be used for preventing and killing broadleaf weeds and nutgrass flatsedge; the weeding effect is remarkable and the synergistic effect is remarkable; the weeding composition can be used before seedling emergence and after seedling emergence; and the weeds in a whole growth period of crops can be prevented and killed after one time of pesticide application, and the rice weeding composition has no influences on after-reap crops and is an ideal herbicide.

Description

technical field [0001] The invention relates to the technical field of pesticide herbicides, in particular to a herbicidal composition for paddy fields containing flubesulfuron-methyl, isoproturon, bentazone and fenoxaprop-p-ethyl. technical background [0002] Rice is not only the most important food crop in my country, but also one of the main food crops in the world. Nearly half of the world's population, including almost all of East and Southeast Asia, eat rice. Production is on every continent except Antarctica. In the late last century, the average annual rice output in the world was about 400 billion kilograms, and the planting area was about 145 million hectares. my country's rice sowing area accounts for 1 / 4 of the country's food crops, about 35 million hectares per year, while the output accounts for more than half. Regardless of the planting area and output, it ranks first in my country's food crops. There have always been a large number of weeds in the paddy ...

AI Technical Summary

Problems solved by technology

Due to the continuous use of bensulfuron-methyl, pyrazosulfuron-methyl and other pesticides, the damage of the serious malignant weeds and heteromorphous sedges has been gradually reduced, while the perennial Arrowhead, Alisma, Cyperaceae weeds and annual The hazards of Yujiuhua and others are aggravated, because penoxsulam herbicides have caused serious damage to perennial stalks and fireflies in many areas

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