The total absorption of nitrogen increased with the amount of nitrogen topdressing, but the proportion of absorption nitrogen during the blooming period to total nitrogen were downtrend.
棉花总吸氮量随著追氮量的增加而增加，但花铃期吸氮量占总吸氮量的比例呈下降趋势。
The key period of element absorption was plantlet to visible bud stage. Potassium was more important than Nitrogen and Phosphorus for development of bulb.
植株营养吸收的关键时期为幼苗至现蕾期，鳞茎发育对钾营养的需求大于氮和磷。
ObjectiveThe aim of the research was to study the absorption and utilization laws of calcium and phosphorus during embryonic development period of France Muscovy duck.
为了了解法国番鸭胚胎发育期间钙、磷的吸收利用规律。
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