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运用１４Ｃ示综技术，研究了营养钵育苗移栽对麦套棉１４Ｃ同化物生产、运转分配及其再分配的影响。试验结果表明，营养钵育苗移栽不仅使棉株在苗期、蕾期、花铃期的１４Ｃ同化量显著提高，而且对各期同化产物向子棉的再动员具有明显的促进作用。各期标记后３天的测定结果显示，育苗移栽增加棉苗同化物质向根系和茎中的分配，而减少向顶芽的分配，这有利于促根壮苗；蕾期同化物质向顶芽和边心的分配比例下降，这有利于控制棉花的营养生长，防止或减轻茎枝旺长，实现健壮稳长，促进花芽分化；育苗移栽在花铃期的效果表现为，促使更高比例的同化物质向生殖器官（特别是成铃）中分配，因而有利于蕾铃发育。上述影响的综合在现是单位面积上的铃数、单铃重、衣分和皮棉产量显著提高。
Using 14C enumeration technology, the effects of seedling transplanting with nutrient bowl on the production, distribution and redistribution of 14C assimilates in maize cotton were studied. The results showed that the transplanting of nutrition bowls not only increased the 14C assimilation amount of cotton plants at the seedling stage, bud stage and flower-boll stage, but also significantly promoted the re-mobilization of the assimilates to cotton seedlings. The results of three days after the labeling showed that the transplanting of seedling increased the distribution of assimilative substances in cotton seedlings to the roots and stems and decreased the distribution to the terminal buds, And bisexual distribution decreased, which is conducive to controlling the vegetative growth of cotton, to prevent or reduce the growth of stems, to achieve robust and stable, to promote flower bud differentiation; nursery transplanting in the flowering period performance is to promote a higher proportion Of assimilation substances to the reproductive organs (especially into bell) distribution, which is conducive to the development of buds. The combination of these effects is now the number of bells per unit area, with a significant increase in boll weight, lint yield and lint yield.