Weeding composition

Abstract

The invention relates to a weeding composition. The composition consists of the following components in parts by weight: 36 to 49 parts of 5-(methylamino)-2-phenyl-4-[3-(trifluoromethyl)phenyl]-3(2H)-furanone, 14 to 29 parts of ethoxylated styryl phenol, 23 to 36 parts of carfentrazone-ethyl, 15 to 27 parts of bentazone, and 11 to 19 parts of N-(phosphonomethyl)-glycine. The weeding composition is less in dosage, low in cost, short in residual life and safe for afterreap crops, and has excellent prevention and control effects to grassy weeds, broadleaf weeds and nutgrass flatsedge.

Description

technical field [0001] The present invention relates to a herbicidal composition. The present invention also relates to the use of the synergistic composition for controlling weeds in wheat. technical background [0002] Weeds are non-target cultivated plants in farmland. Their main hazards are to compete with crops for water, fertilizer, light, and space, and they are also intermediate hosts of crop diseases and insect pests. The area of ​​weeds in my country's wheat field accounts for about 30% of the wheat planting area, of which 8% is seriously damaged, and the loss accounts for about 15% of the total wheat output. At present, the main method of controlling weeds in farmland is to spray pesticides. [0003] The weeds that need to be controlled during the wheat growth period mainly include sage weeds, oatgrass, ryegrass, common bluegrass foxtail and other gramineous weeds, such as pigtail, quinoa, red heart quinoa, empty tube morning glory, and retroverted amaranth Broa...

AI Technical Summary

Problems solved by technology

In addition, metsulfuron-methyl and chlorsulfuron-methyl have a long residual effect period, causing serious damage to broad-leaved crops such as cotton, soybeans, and peanuts; 2,4-D-butyl ester is a quick-acting, low-cost herbicide, but it has strong drift , easy to cause phytotoxicity to adjacent crops, and at the same time, a special sprayer is required, and it is difficult to clean the sprayer after use; 2M 4 chloride sodium salt, dicamba, etc. should not be sprayed too late, otherwise phytotoxicity will easily occur