Advantages of chemical weeding in wheat fields before winter:

One is to save pesticides. The wheat seedlings are smaller before winter, and the herbicide can be sprayed on the weeds to the maximum extent, thus reducing the amount of liquid medicine.

Second, it is easy to get rid of weeds. Most of the weeds in the wheat field before winter are just unearthed, usually before the 3-leaf stage, the lowest resistance, it is easy to be removed.

Third, the amount of pesticide residues is small. Weeding before winter, due to the relatively long planting time of the lower crop, the herbicide can be fully decomposed in the soil, thereby reducing the residual amount of the herbicide in the soil and not affecting the growth of the lower crop.

Key points for chemical weeding before winter:

One should pay attention to the selection of herbicides. Careful reading of the instructions for use, selection of herbicides that have no effect on the sorghum crops, special attention should be paid to the plots of crops that are sensitive to herbicides such as peanuts, soybeans, and cotton.

Second, spray at the right time. Generally, in the middle and late November, the weeds in the wheat fields have basically come out, and the chemical weeding time is from mid-November to early December.

Third, we must increase the amount of water appropriately. Take the worker-nature-type 16 manual sprayer as an example, the diluted herbicide solution per acre should not be lower than the two sprayers.

Fourth, we must pay attention to spraying in the windless weather, so as not to cause uneven spraying due to the influence of wind.

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