磷肥对马尾松幼苗营养元素吸收的影响  

The Effect of P Fertilizer on the Absorption of Nutrient Elements in Pinus massoniana Seedlings

作　　者：周玮[1,2] 姜霞 李从瑞 

机构地区：[1]贵州民族大学化学与环境科学学院,贵阳550025 [2]贵州省林业科学研究院,贵阳550005

出　　处：《贵州林业科技》2013年第4期10-13,共4页Guizhou Forestry Science and Technology

基　　金：贵州省科学技术基金(黔科合J字[2011]2133号)

摘　　要：通过磷肥处理后马尾松幼苗地上、地下营养元素含量的测定,得知对马尾松幼苗进行施磷肥处理后,马尾松地上、地下部分大量元素含量增加,特别是地上部分N素浓度明显高于CK,较对照高2.00g/kg。部分微量元素含量(Fe、Mn)也高于对照。P1、P4处理下地上、地下Cu、Zn含量均较高,P1处理下Fe含量在地下高于CK,P4处理下Mn含量明显高于CK。说明施磷肥不仅能促进马尾松幼苗吸收磷素,也有利于其他营养元素的吸收。且地上部分P、K、Cu、Fe元素含量低于地下,说明这4种元素在根系中积累,而N、Ca、Mg、Mn元素则表现为地上高于地下,在生长旺盛期结束后仍保存在地上部分。Content of the nutrient elements in the underground and the aboveground part of Pinus massoniana seedlings were tested after the application of phosphate fertilizer. The results showed that after the application of phosphate fertilizer, the content of macro - elements in both the underground and the aboveground part of Pinus mas- sorriana seedlings increased, and the content of several micro - elements （ Fe,, Mn） were also higher than the refer- ence. This results explained that P fertilizer application can not only promote the phosphorus absortion, but also be conducive to the absorption of other nutrients.

关 键 词：磷肥 营养元素 影响 马尾松 

分 类 号：S723.7[农业科学—林木遗传育种]