Composition and method for preventing and removing weeds in non-cultivated land

Abstract

The invention relates to a weeding composition for preventing and removing weeds in non-cultivated land, and more specifically relates to a herbicidal composition comprising glyphosate or a salt thereof, triclopyr or a salt thereof, and glufosinate-ammonium or a salt thereof. The weight ratio of the active ingredients in the composition is selected from (10-100): (1-50): (1-50), preferably (10-80): (1-30): (1-30), further preferably (10-60): (1-20): (1-20), particularly (13-53): (1-11): (1-11); wherein the sum of the contents of the active components is 1-99% of the total weight of the composition, preferably 10-95%. The composition can be prepared into a suspending agent, a water dispersible granule, an emulsion in water, a microemulsion or missible oil suitable for agricultural production, especially wettable powder. The composition is used for preventing and removing weeds in non-cultivated land, especially crab grass, cyperus rotundus, erigeron breviscapus, amaranthus retroflexus,barnyard grass, atrazine, field muskmelon and piemarker.

Description

technical field [0001] The invention belongs to the technical field of pesticide compounding, and at the same time relates to a specific formulation processing technology, and the use and method for preventing and controlling weeds in non-cultivated land. Background technique [0002] Glyphosate, English common name Glyphosate, non-selective herbicide, its main mode of action is to block the activity of 5-enolpyruvylshikimate-3-phosphonic acid (EPSP) salt synthase. [0003] Glufosinate-ammonium, English common name Glufosinate, chemical name is 4-[hydroxy(methyl)phosphono]-D,L-homoalanine, by inhibiting the synthesis of GS, preventing the synthesis of glutamine, causing nitrogen metabolism disorder And ammonium ions accumulate, the photosynthesis of plants cannot be carried out normally, and eventually the plants wither and die. It is mainly used for controlling annual and perennial gramineous weeds such as goosegrass, crabgrass and foxtail, as well as broad-leaved weeds an...

AI Technical Summary

Problems solved by technology

[0004] Triclopyr, English common name Triclopyr, organic heterocyclic selective systemic herbicide, can effectively control broadleaf weeds by acting on nucleic acid metabolism, but is ineffective against grasses and sedges

[0005] Among many herbicides, glyphosate is a variety that weeds develop resistance slowly. It has been used for 20 years but has not caused weeds to develop resistance. However, since the widespread promotion of glyphosate-resistant crops, the area of ​​no-tillage has expanded, greatly The situation of herbicide application has been changed, and glyphosate is used multiple times a year, including multiple treatments before sowing and after emergence, which greatly enhances the selective pressure and promotes the development of glyphosate-resistant or tolerant weeds. Phosphine resistance increasingly problematic

At the same time, in the application of glyphosate, the researchers found that the removal effect of glyphosate is not good for some perennial malignant weeds

Images