Herbicide for winter wheat field and preparation method thereof

Abstract

The invention discloses a preparation method of a herbicide for a winter wheat field. The preparation method of the herbicide for the winter wheat field comprises the following steps: stirring and mixing a herbicidal composition, a sustained release agent, a surfactant, a filler and a solvent according to a weight ratio of 100:(1 to 10):(1 to 5):(2 to 10):(20 to 50) to prepare the herbicide for the winter wheat field, wherein the herbicidal composition comprises fluazifop-p-butyl, napropamide, clomazone, butachlor, atrazine, propazine and an ALS inhibitor. The herbicide has high herbicidal activity and wide weed control spectrum, kills weeds while having the weeds and closes while having no weeds and is long in persistent period, and one-time use of the herbicide can ensure that the wholeseedling raising period of the winter wheat seedling field is not harmed by the weeds, to ensure the quality of winter wheat seedlings and the yield of late-stage winter wheat.

Description

technical field [0001] The invention relates to pesticide products, in particular to a winter wheat field herbicide and a preparation method thereof. Background technique [0002] Herbicides refer to agents that can completely or selectively kill weeds, also known as herbicides, a class of substances used to eliminate or inhibit plant growth. Among them, sodium chlorate, borax, arsenate, and trichloroacetic acid have a deadly effect on any kind of plants, and their effects are affected by three factors: herbicides, plants, and environmental conditions. According to the function, it can be divided into killing and selective herbicides. Most of the selective herbicides, especially the derivatives of nitrophenol, chlorophenol and carbamic acid, are effective. [0003] Compared with insecticides and fungicides, herbicides have higher requirements for the use of technology. Improper use of insecticides and fungicides may only affect the control effect, while improper use of herb...

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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