寄秧期僵苗是削弱杂交水稻两段育秧增产、增益优势的重要因素之一,我县注意总结和推广寄秧期僵苗防治技术,取得较好成效。1985年,全县杂交水稻两段育秧面积48680亩,寄秧期僵苗面积仅36亩,不足0.l%,两段育秧比露地育秧每亩大田平均多收稻谷79公斤,增加收益20元左右。现将两段育? Seedling stage stiffening seedlings is to weaken the two hybrid rice growth, yield advantage, one of the important factors, my county pay attention to summarize and promote the seedling seedling prevention and control technology, and achieved good results. In 1985, the county hybrid rice two sections of growing area of ​​48,680 acres of seedlings, seedlings send seedlings stiffening area of ​​only 36 acres, less than 0.l%, two sections of seedling growth than the open field planting seedlings per mu more than the average rice paddy 79 kg, an increase of 20 yuan about. Now two sections of education?