The best time to remove the yam field is before the emergence. Before planting, combine with the preparation of the whole land with 40% Fluorin EC 100-125 ml per acre, add 40 kg of water spray, mix the soil immediately after spraying, and plant the yam every 7-10 days. Before planting, use 48% of the amount of 48% dilamide or weeding pass (ie Shi Tianbu, common name dimethyl pentole) 130 ml of water per acre. After planting, the herbicide should be used as soon as possible after planting. Moist to improve the control effect. After the emergence of the seedlings, the weeds 2-3 leaf stage, 15% per acre, 50-60 ml of water and 30-40 kg of water sprayed. Disabled 50 days before harvest.
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