低磷水平下马尾松种源磷效率与磷素利用效率有关，而与磷素吸收效率相关性较小，磷效率和磷素利用效率高的种源其干物质积累量较高。
PE was significantly and positively related to P use efficiency, not related to P absorption. The provenances with higher PE had greater dry matter accumulation.
低磷水平下马尾松种源磷效率与磷素利用效率有关，而与磷素吸收效率相关性较小，磷效率和磷素利用效率高的种源其干物质积累量较高。
PE was significantly and positively related to P use efficiency, not related to P absorption. The provenances with higher PE had greater dry matter accumulation.
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