Herbicide for preventing and controlling broadleaf weeds in cotton field and preparation process thereof

Abstract

The invention relates to the technical field of herbicide preparation, in particular to a herbicide for preventing and controlling broadleaf weeds in a cotton field and a preparation process of the herbicide. The herbicide comprises the following components in parts by weight: 35-45 parts of a mixed medicament formed by mixing metamitron and a pendimethalin suspending agent according to the weightratio of (3-7): (0.8-1.2), 8-10 parts of modified trifluralin, 5-8 parts of saflufenacil, 13-20 parts of a 48% flumioxazin suspending agent, 25-30 parts of a 30% oxadiargyl suspending agent, 20-30 parts of acetochlor, 3.5-4.2 parts of carbopol, 1.2-1.8 parts of a disintegrating agent, 1.6-2.2 parts of an adhesive, 1.4-2.0 parts of a wetting agent and 2.2-2.7 parts of a dispersing agent. The metamitron, the pendimethalin suspending agent, the acetochlor and the modified trifluralin are used as raw materials for preparing the herbicide, so that effective components in the herbicide are absorbedby hypocotyls of field broadleaf weeds, and meanwhile, cotyledons can well absorb the effective components in the herbicide, so that the weeding effect of the herbicide is improved; moreover, the modified trifluralin has good light stability, so that the drug effect of the trifluralin is prolonged.

Description

technical field [0001] The invention relates to the technical field of herbicide preparation, in particular to a herbicide for controlling broad-leaved weeds in cotton fields and a preparation process 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. The commonly used species are organic compounds, which can be widely used to control harmful plants such as weeds, shrubs, and trees in farmland, orchards, flowe...

AI Technical Summary

Problems solved by technology

However, the broad-leaved weed herbicides currently available in the market are not ideal for killing broad-leaved weeds, and the weeding effect is relatively poor