A kind of wheat field herbicide composition

Abstract

The invention discloses a wheat field herbicide composition. The effective ingredients of the herbicide composition are composed of isoproturon, flucarbazone-methyl and clodinafop-propargyl, and the isoproturon, flucarbasulfuron-methyl and clodinafop The mass ratio of the ester is 50-70:0.5-5.5:1-10. The synergist organic silicon is also included, and the quality of the isoproturon, flucarbazone-methyl, clodinafop-propargyl and organic silicon is 50-70:0.5-5.5:1-10:1-4. It has a certain control effect on broad-leaved weeds and gramineous weeds in wheat fields. The average reduction rate is as high as 94.99% and the average control rate is 98.62% after 30 days of application.

Description

Technical field [0001] The invention belongs to the technical field of pesticide herbicides, and particularly relates to a herbicide composition composed of isoproturon, fluazuron-methyl and clodinafop-methyl for controlling weeds in wheat fields. Background technique [0002] According to reports from the National Weed Census, there are more than 200 types of weeds in wheat fields in my country. Weeds account for more than 30% of the wheat planting area, and losses account for about 15% of the total wheat output, reaching 10 billion kilograms. The hazards such as Swine Salamander, Artemisia sibiricum, and Daxiancai are serious. However, with the long-term and large-scale application of herbicides, the problems of weed resistance, population succession and phytotoxicity in chemical control of weeds in farmland are becoming more and more serious, which seriously affects the high yield and harvest of wheat and the safety of subsequent crops. At present, there are some disadvantages...

AI Technical Summary

Problems solved by technology

For example, if the sulfonylurea herbicides tribenuron-methyl and bensulfuron-methyl are used too high or too late, they will cause phytotoxicity to subsequent crops such as peanuts and soybeans.

Phenoxycarboxylic acid herbicides 2,4-D-Butyl Ester, Dimethyltetrachloride Sodium Salt Excessive dosage and improper application can easily cause crop damage and drift, which can cause damage to nearby dicotyledonous crops

In addition, if a single herbicide is used for long-term control, the number of sensitive weeds will decrease, and the number of insensitive or malignant weeds will increase, causing changes in the weed community.

In the winter wheat producing areas where herbicides are used alone, the weed community in the wheat field has undergone serious changes. The number of malignant weeds that are difficult to control with various herbicides, such as pigtails, lacquer, mother-in-law, and shepherd's purse, has increased year by year, and has seriously affected the Harvest of wheat crop yield

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