施肥和密度对苎麻营养生理的影响

为了探讨施肥和密度对苎麻产量和品质形成的综合影响及营养生理效应，以苎麻新品种0501为试验材料，采用二次正交旋转组合设计，研究了施肥和密度对苎麻养分积累、苎麻养分分配规律的影响。结果表明，氮肥对苎麻植株体内的氮磷钾含量影响显著，施氮促进了苎麻对氮素的积累，但是，增施氮肥不利于磷钾在苎麻体内的积累。钾肥可以显著促进麻皮对磷钾的积累，使磷钾向皮中转移。养分分配规律中，头麻与二麻在养分分配中略有差别。

The Effects of Fertilization and Plant Density on the Nutrient Physiology of Ramie

New ramie variety 0501 was used in this research, in order to exploring the comprehensive effects and nutrition physiology of fertilizer and plant density on ramie yield and quality. Orthogonal rotated combination design was used to study the nutrient accumulation and distribution in ramie. The main results showed that: nitrogen significantly effected on NPK contents in ramie plant, nitrogen fertilizer promoted nitrogen accumulation, but decreased the accumulation of phosphorus and potash in ramie plant. Potash fertilizer can increase the amount of phosphorus and potassium in the ramie leather. There are some differences in nutrition distribution between first and second season of ramie plant.