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为促进白鲜的进一步开发利用,满足市场需求,以一年生白鲜为试验材料,采用常规法进行了白鲜体内氮磷钾含量变化规律研究。结果表明:在整个生长过程中,干物质量,地上部分高于根皮,根皮高于髓心;地上部分和根皮干物质量最高值均出现在7月23日。白鲜植株内氮、磷、钾的含量,地上部分波动较大,根皮和髓心变幅较小;氮和钾含量,均是地上部分高于地下部分,根皮高于髓心,磷含量髓心高于根皮;氮、磷、钾含量的最高峰均出现在春季萌芽时;出芽后,随生长的进行,地上部分氮、磷、钾含量逐渐下降,氮和磷含量持续下降,而钾含量在生育后期有一次起伏。
In order to promote the further development and utilization of fresh white and meet the market demand, annual fresh white fresh test material was used to study the variation of nitrogen, phosphorus and potassium contents in white fresh body. The results showed that during the whole growing process, the dry matter mass, the aboveground part was higher than the root bark, and the root bark was higher than the pith center. The highest values of the aboveground parts and root bark dry matter occurred on July 23rd. The contents of nitrogen, phosphorus and potassium in white fresh plant fluctuated greatly on the ground and the amplitude of root bark and pith was smaller. The contents of nitrogen and potassium were higher in above-ground part than in underground parts, The highest content of N, P and K appeared in spring germination. The content of nitrogen, phosphorus and potassium in aboveground decreased gradually and the content of nitrogen and phosphorus decreased continuously after germination, The potassium content in the late growth period there is a ups and downs.