一、查苗补种。大豆缺苗是生产上普遍存在的问题。查苗补种的方法是：当土壤水分充足，时间又赶得上时，可用原品种的种子浸种2－3小时后补种；如果土壤水丹虽充足，但农时已晚，可催芽补种或用早熟品种补种；若补种时间赶不上，可在阴天或晴天下午取少于一片复叶的幼苗带土移? A, check seed replanting. Lack of soybean is a common problem in production. Check seedling replanting method is: When the soil moisture sufficient, time and catch up, available seeds of the original seed soaking seed 2-3 hours after replanting; if the soil water is sufficient, but the time is too late, can be reminded of seed replanting or use Precocious varieties of replanting; if replanting time to catch up, in the cloudy or sunny afternoon to take less than a leaf of the seedlings with soil shift?