How to use the herbicide pyrimethachlor in wheat field?

How to use the herbicide pyrimethachlor in wheat field? Please give an introduction to the priority of weeding in wheat field 7.5% sulfonamide water dispersible granule is a sulfonamide herbicide launched by Dow Yenong Company in the winter of 2009 to control both Gramineae weeds and broadleaf weeds in wheat fields. Through a large number of experiments and follow-up investigation on the use of farmers in recent years, the author found that sulfonamide has a good control effect on grass weeds such as brome, sorghum, Japanese sorghum, hard grass, etc. at the same time, it has a good control effect on broad-leaf weeds such as mother-in-law, wild geranium and so on. Last year, due to special weather conditions, there was a slight drug reaction in some sensitive wheat varieties (such as some Yangmai varieties). With 7.5% sulfochlor water dispersible granules of more than 12.5 grams per mu (the highest recommended dosage) or re-sprayed fields (especially in low-lying areas), some wheat leaf tips yellowed and then whitened after 15 days of low temperature application. There is a serious squatting phenomenon. With the rise of temperature, the continuous emergence of new leaves of wheat seedlings can quickly return to normal growth, and the final yield is not greatly affected. Therefore, there is no need to take special remedial measures if the wheat has a drug reaction after the use of pyrimethachlor, as long as the symptoms are not too severe. The fields with particularly serious symptoms can be sprayed with brassinolide plant growth regulators to promote the recovery of wheat seedlings. Click to get more herbicide application techniques