~(32)P研究马铃薯(合作-88)和黄豆对磷素营养的吸收及分布规律

应用3 2 　P研究“合作 88”马铃薯对磷素营养的吸收和分布规律 ,结果显示 :马铃薯对磷素营养的吸收率随植株的生长而增加。吸收率与栽培生长时间呈显著正相关。磷素主要分布为茎 >根 >叶。随生育期茎中含量相对增加 ,而叶中含量相对减少 ,根的不变。黄豆对磷素的吸收在 6d水培时间内随时间的延长而增加 ,过后则衰退。

Study of phosphate absorption and distribution characteristics in potato and bean by using 32P

This paper studied the absorption and distribution of phosphate in potato by using ~(32)P. Results showed: Potato assimilating ~(32)P content increased as growth period. It was significantly positive correlation. The ~(32)P fertilizer of potato assimilation distributed great amount in stem, secondarily in root and leaf. The percentage of stem assimilation ~(32)P at the total part increased as growth period progressed, but the percentage of leaf reduced, the root was not changed. Bean assimilating ~(32)P content increased for 6 days and then reduced.