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~(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
强继业
云南农业大学烟草学院 云南昆明650201
摘要:
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。
关键词:  马铃薯    黄豆    磷素    32P    吸收
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