云南引进葡萄柚品种叶片营养分析

Analyze on Nutrient Elements of Grapefruit Leaves Introduced in Yunnan

对引种于云南省普文县的9个葡萄柚品种的叶片营养进行了分析,结果表明,(1)葡萄柚叶片中P与K、Mn、Zn呈极显著正相关关系;K与Mg、Mn、Zn显著相关;Ca与Mg、Mn、Fe呈显著或极显著相关;Mg与Mn、Fe分别呈显著、极显著负相关;Mn与Zn呈极显著正相关,N与Mn呈显著负相关。(2)叶片中只有氮、铁含量适宜,磷、钾、锌含量过高,钙、镁、锰含量有不同程度的缺乏。

The nutrient elements （ Citrus paradisi Macf. ） cuhivars introduced in Puwen county of Yunnan province have been studied. Results were as follows. There exited very significant positive correlation between mineral elements of P and K, Mn, Zn in grapefruit leaves, significant correlation between K and Mg, Mn, Zn, significant or very significant correlation between Ca and Mg, Mn, Fe. There had very significant negative correlation among Mg and Fe, significant positive correlation between Mg and Mn, very significant positive correlation between Mn and Zn, significant negative correlation between N and Mn. Total N, Fe were in optimum range, and total P, K, Zn were high, but total Ca, Mg, Mn were low in leaves of the 9 grapefruits.