夏棉育苗移栽经验谈黄殿成中国农科院棉花所安阳４５５１１２１　掌握好育苗时间　播种过早，苗龄太长，移栽时根系易受伤，缓苗期长，真叶变红，甚至部分叶片脱落，难以达到高产目的；播种过晚，苗龄过小，移栽时根系虽不易受损，缓苗期短，但不能充分利用有效生长季节，... Transplantation experience of summer cotton seedlings Huang Diancheng Cotton Institute of Chinese Academy of Agricultural Sciences Anyang 4551121 To master the sowing time too early sowing, seedling too long, transplanted roots vulnerable, slow seedling period, true leaves turn red, and even some leaves off , It is difficult to achieve the purpose of high yield; sowing too late, seedling age is too small, although the root system is not easily damaged when transplanted, Huanmiao short, but can not make full use of effective growing season, ...