What herbicides can be used after wheat emergence

Based on the experience of chemical weeding in wheat field [Weibo], different seedling conditions and different subsequent agents of wheat should be distinguished, and different chemical herbicides should be selected. the following herbicides are available. One, 6.9% Gum suspension or 10% Puma EC. It can control many kinds of Monocotyledon weeds. Spray 6.9 km / mu with 40ml / mu gelatin suspension, 40ml / mu, or 10% Poma EC, 30ml / mu, 30kg water. The suitable spraying time is the 5-leaf stage of wheat 3 Mel. Second, Baijia mixture. It can prevent a variety of broad-leaved weeds, especially those that are difficult to control, such as pig calamity, spring Polygonum and so on. Each mu is sprayed with 48% Baicaoduo 10ml 12ml, plus 20% 2A 4 chlorine 125ml 150ml, mixed with water 30kg. The spraying time is from the 3-leaf stage of wheat to before jointing. The mixture is only suitable for rice crops in the following crops. Third, 75% superstar dry suspension. It can control many kinds of broad-leaved weeds. Spray with 1ml 2g per mu and 30kg of water. The suitable spraying time is the 5-leaf stage of wheat 3 Mel. 40% or 20% make it creamy. It can control many kinds of broad-leaved weeds, especially to the weeds such as small spiral flowers which are difficult to control. The medicine is 60ml / mu and sprayed with 20kg of water. The suitable spraying time is the 5-leaf stage of wheat 3 Mel. 5. Toluene mixture. It can control many kinds of broad-leaved weeds. Use 125 ml of 20% 2 methyl 4 chlorine water agent per mu plus 48% bentazone water agent 100 ml and spray 30 kg of water. The spraying time is suitable for wheat after tillering and before jointing. The mixture is only suitable for rice crops in the following crops. In order to improve the effect of herbicides in the main weeds in wheat fields, we should pay attention to the following points in the use of the ecological environment: first, we should look at the soil moisture, when the soil moisture is insufficient, we should appropriately increase the amount of water, and do not apply medicine when there is a lack of soil moisture; the second is to choose sunny weather to apply; the third is to choose the temperature to be used when the temperature is about 20 ℃; and the fourth is to choose drugs in windless or breezy weather to prevent drug damage to the surrounding crops.