一、查苗补种 在土壤水分充足、时间又赶得上时,用原品种浸种2～3小时后补种;土壤水分充足,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,可及早在阴天或晴天下午取不少于1片复叶的幼苗带土移栽,栽后随即浇水,以利成活。 二、摘心打叶 有促长或贪青晚熟趋势的大豆,可在大豆初花期或盛花期将主茎顶端摘去2厘米左右,或用约33厘米长的锋利铁片或竹片制成长柄刀,当出现徒长时,在植株封行以后,用刀将行间重叠的叶片削去一部分,以改善通风透光条件,降低田间湿度,防止植株徒长倒伏。 三、施用稀土 可使蛋白质含量增加5.9％,脂肪含量增加8.5％,增产15％～20％。①拌种。每公斤豆种用稀土2克;②叶面喷施。大豆苗期和始花期,用浓度分别为0.03％～ First, the seedling planted in the soil sufficient moisture, time and catch up, with the original seed soaking seed 2 to 3 hours after replanting; adequate soil moisture, but the farming is late, can be reminisced of seed replanting or early maturing varieties of replanting; Seed time can not keep up, as early as possible in the cloudy or sunny afternoon, take less than 1 leaf of the seedlings with soil transplanting, watering immediately after planting to facilitate the survival. Second, the topping leaves to promote growth or greedy late-maturing trend of soybeans, early flowering or flowering in soybeans will be the top of the main stem picked about 2 cm, or about 33 cm long sharp iron or bamboo made of long handle Knife, when the appearance of leggy, after the plant seal line, with a knife will be part of the line between the overlap of paring to cut off to improve the ventilation and light conditions, reduce field humidity, to prevent plant lengthy lodging. Third, the application of rare earth protein content can increase 5.9%, 8.5% increase in fat content, an increase of 15% to 20%. ① dressing. 2 kg per kilogram of beans with rare earth; ② foliar spray. Soybean seedling and flowering period, with concentrations of 0.03% ~