棉花营养钵育苗移栽,是夺取棉花全苗壮苗,早发早熟,优势高产的有效措施。它可以延长生育期和有效开花结铃期,麦套棉缩短共生期,缓解“三争”矛盾。一般比大田直播棉增产15～20%,霜前花率增加20%左右。七十年代我们试验推广了春棉育苗移栽,八十年代开始进行麦套棉育苗移栽的试验示范推广,棉花品种也从中熟棉一个类型,发展到中熟、中早熟和早熟 Cotton nutrition bowl nursery transplanting, is to seize cotton seedlings strong, early premature, high yield and effective measures. It can prolong the growth period and the effective flowering period, wheat cotton shorten the symbiotic period, alleviate “three strife ” contradiction. Generally 20% more than Ota broadcast cotton yield, frost flower rate increased by about 20%. In the seventies, we experimented with the promotion of spring cotton seedling transplanting. In the 1980s, we started to carry out experimental demonstration and popularization of transplanting of wheat cotton seedlings. The varieties of cotton also developed from mid-ripening, middle-early-maturity and early maturing