Q: I am Zhang Yuanjing from Wu Yao Town, Rugao City. Will the cold tail warmer be used to remove grass weeds in wheat fields before and after the winter solstice? According to its maximum limit, 1 mu of land can be sprayed with 0.8 mu of land.
A: The US 7.5% of the Dow Corning Company's newly introduced water dispersible zirconia granules for use in the domestic market has been registered for the treatment of stems and leaves in winter wheat fields to control a variety of annual weeds. The drug dosage per hectare is 10.55%~14.06. Grams, about 9.4 to 12.5 grams per mu.
Trimethoprim provides good control of many common broad-leaved weeds such as Japanese amaranth and aphrodisiacs in wheat fields, such as many common grasses and weeds, wild barnyardgrass, and broad-leaved weeds. In addition, it is not necessary to increase the dosage as the age of the grass increases. The drug can also be used during the cold period. It should be noted that the imidazolium has a certain inhibitory effect on the growth of wheat seedlings. After the application, the wheat seedlings may show slight yellowing of the leaves and seedlings (normally recoverable under normal application conditions). Do not arbitrarily increase production. Dosage, or blindly reduce the amount of water sprayed with high concentrations of liquid medicine, otherwise it may occur heavier injury, so that the wheat seedlings can not be restored within a long time. Do not use this medicine when wheat seedlings are thin, or have poor growth due to frost, waterlogging or other hazards. Otherwise, they may increase the damage. Production should be strictly in accordance with the instructions for use of the product, master the appropriate dosage and the amount of water, generally do not exceed its maximum amount of pesticide application.
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