Wheat field herbicide composition

Abstract

The invention discloses a wheat field herbicide composition. The herbicide composition comprises the following effectively components, namely isoproturon, flucarbazone-sodium and clodinafop-propargyl. The mass ratio of isoproturon to flucarbazone-sodium to clodinafop-propargyl is (50-70) to (0.5-5.5) to (1-10). The herbicide composition further comprises synergist organic silicon; and the mass ratio of isoproturon to flucarbazone-sodium to clodinafop-propargyl to the synergist organic silicon is (50-70) to (0.5-5.5) to (1-10) to (1-4). The wheat field herbicide composition has certain prevention effect on broadleaf weeds and gramineae grassy weeds of wheat fields; and the average reduction rate is up to 94.99% 30 days after the herbicide is used, and the average prevention and removing rate is 98.62%.

Description

technical field [0001] The invention belongs to the technical field of pesticide herbicides, in particular to a herbicide composition composed of isoproturon, flucarbasulfuron and clodinafop-propargyl for controlling weeds in wheat fields. Background technique [0002] According to the national weed census data report, there are more than 200 kinds of weeds in wheat fields in my country, and the area of ​​weed damage accounts for more than 30% of the wheat planting area, and the loss accounts for about 15% of the total wheat output, reaching 10 billion kilograms. Swine worms, Artemisia persicae, and Dachao are serious hazards. However, with the long-term and large-scale application of herbicides, the problems of weed resistance, population succession and phytotoxicity in chemical weed control in farmland are becoming more and more serious, seriously affecting the high yield and harvest of wheat and the safety of subsequent crops. At present, there are some disadvantages in c...

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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