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通过对华山松 (Pinusarmandi)种子园内无性系针叶养分状况的分析 ,结果表明 ,无性系之间的营养元素含量差异极明显 ,尤其表现在Ca、K营养上 ,而针叶的元素含量顺序为N、Ca、K、Mg、P、Mn、Fe、Zn、B ;不同月龄针叶养分含量差异极大 ,未完全抽长针叶养分含量顺序为N、K、Ca、Mg、P。针叶内微量元素含量与无性系有较大相关性 ,而不同土壤上华山松针叶微量元素的含量差异更大 ,尤其是针叶B的含量 ,因此土壤施B可在针叶的含量上明显地表现出来。
The results showed that there was significant difference in nutrient content between clones in Pinus armandii seed orchard, especially in Ca and K nutrition, while the order of elements N, Ca, K, Mg, P, Mn, Fe, Zn and B. The nutrient contents of coniferous forages in different months were extremely different. The content of trace elements in the needle leaves is more correlated with clones, while the content of trace elements in Pinus tabulaeformis leaves is more different in different soils, especially the content of needle B, so the content of B in soil can be obviously increased Show it.