What are the advantages of chemical weeding in wheat fields before winter?

What are the advantages of chemical weeding in wheat fields before winter? Save on pesticides. Wheat seedlings before winter are smaller, so herbicides can be sprayed on weeds to the maximum extent, thus reducing the amount of chemical solution. Easy to get rid of weeds. Most of the weeds in wheat fields before winter have just emerged, usually before the 3-leaf stage, with the lowest resistance and are easy to get rid of. Low pesticide residues. Weeding before winter, because the planting time of the next crop is relatively long, the herbicide can be fully decomposed in the soil, thus reducing the amount of herbicide residue in the soil and not affecting the growth of the next crop.

Save chemical fertilizers. Wheat seedlings before winter are smaller, so herbicides can be sprayed onto weeds to the maximum extent, thus reducing the amount of pesticides. Very easy to get rid of weeds. Most of the weeds in wheat fields before winter have just been discovered, usually before the 3-leaf stage. They have low resistance to pesticides and are very easy to get rid of.

Less amount of pesticide residue. When weeding before winter, because the planting time of the next crop is relatively long, the herbicide can be fully dissolved in the soil, thus reducing the amount of herbicide residue in the soil and not affecting the growth of the next crop. .

Wheat field weeding is best carried out in early to mid-November before winter. At this time, the temperature is higher, the wheat has more than 3 leaves and 1 heart, and most of the weeds have been dug out early, and the weeds are relatively dense. Small, low resistance to pesticides, the weeding effect will be very good; for land resources that cannot be chemically weeded before winter, chemical weeding should be carried out immediately from the end of February to mid-March of the next year (before wheat emerges) to prevent Weeds grow too large and become resistant to pesticides, thus affecting the effectiveness of weed control.

Before spraying, you should pay attention to the weather forecast, and be sure to avoid cold currents or continuous rainy temperatures. The lowest temperature within 3 days after spraying is best to be above 4℃, and the daytime temperature should be above 10°C during spraying. ℃, so as to ensure the effectiveness of weeding without causing phytotoxicity. ?

It has been confirmed through demonstration applications in recent years that when spraying herbicides such as disulfuron-methyl, flutrifuron-methyl, fluopyr, diflufenac, etc. 25-50mL of BANG (microbial chaperone protein) can promote the healthy growth of wheat, improve drought resistance, and reduce the risk of phytotoxicity; at the same time, it can also promote the absorption of herbicides by weeds and improve the weeding effect. For areas where wheat has been harmed by unreasonable spraying, Yoshibang plus brassinolide (or sodium nitrophenolate) can be sprayed immediately to reduce the harm and restore normal growth of wheat as soon as possible.