Clever use of acetochlor farmland without grass just waiting
Acetochlor is a selective pre-emergence herbicide that is used before weeds are excavated from crops after sowing, and can effectively control annual grass weeds and some dicotyledonous weeds in crops such as soybean, corn, peanut, and cotton. With a wide spectrum of efficiency, ease of use, and low prices, it has been welcomed by farmers. However, it has a narrow weed control surface and a short drug efficacy period. If we do not strengthen management at the later stages of the crop, weeds will grow rapidly and overflow. In particular, dicotyledonous weeds will cause more damage, which will seriously affect the growth of crops and even reduce production. It not only increases the intensity of farmers' weeding efforts, but also causes great annoyance to farmers.
Farmers in some areas of Qian’an County and Hebei Province in Qian County, Hebei Province, have practiced a short-term efficacy of acetochlor, and the shortcomings of growing crops like weeds in the late growth period of crops have changed from pre-planting to post-emergence spraying. In this way, the crop will not grow or produce less weeds later in the growing season, eliminating the need to re-prevent and control weeds later in the crop.
The specific approach is, when corn, soybeans, peanuts and other Qimiao, combined with the seedlings and rapid re-emergence again, and then, with acetochlor 150ml per acre, watered 90 kg spray can be. From sowing to Miao Qi and drowning for about 30 days, when the weather is dry and rainless, weeds are scarce, and broad-leaved weeds such as cockroach and amaranth are budding. As the spraying was postponed for more than 30 days, the drug efficacy was postponed accordingly, and crops were ridged and closed during the efficacy period. Even a small amount of weeds had little effect, as long as a small amount of broad-leaved weeds was removed. This kind of tricky spraying time is not only labor-saving and efficient, but also increase production, killing more.
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