【Application】 The appropriate ratio of atrazine, quinclorac and chlorpyrifos can effectively prevent weeds

Earthworms are widely distributed medicinal economic crops in China and are cultivated in most parts of China. Chemical weeding is one of the main means of controlling weeds in agriculture, but it is extremely sensitive to many herbicides. Many of the herbicide varieties currently on the market have problems with poor safety. At the same time, when the weeds in Putian occur, the grass is complex, and grass weeds, broadleaf weeds and sedge weeds are mixed. The use of a single herbicide will show some defects and limitations.

In order to explore the reasonable ratio of the combination of atrazine, quinclorac and chloropyrazine in the control of weeds in Putian, the researchers of Zhejiang Tianfeng Biological Science Co., Ltd. evaluated the method by pot experiment. Atrazine, quinclorac and chlorpyrifossulfuric single agent and mixed indoor control.

The results showed that the co-toxicity coefficients of the five ratios of control of crabgrass, amaranthus and sedge were 113.11-157.47, 97.72-111.54 and 110.54-117.38, respectively, which were additive or synergistic. Among them, the 12:6:1 formula mixture was used to control the common toxic coefficient of 157.47, and the synergistic effect was significant. The ED10 value of the crop target No. 1 was 1321.63g/hm2.

The researchers suggested that the next step was to use the formula atrazine: quinclorac: chloropyrazine was 12:6:1 for further testing and verification of its weed control and crop safety.

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(Source: Pesticide Market Information)