草业学报Issue(6)：61-68,8.DOI:10.11686/cyxb20140608
不同种植年限紫穗槐根际非根际土壤磷组分含量特征
Phosphorus contents in the rhizosphere and bulk soil under Amorpha fruticosa established in different years
摘要
Abstract
The rhizosphere and bulk soil of Amorpha fruticosa established in different years were studied.A-vailable phosphorus (P),total P and P fractions were analysed using the method of Hedley which was a soil P classification method revised by Tiessen.Available P levels in the rhizosphere were higher than those out of the rhizosphere.The Y60 had the highest inorganic P content than the other except for H2 O-Pi and Conc.HCl-Pi. The NaHCO3-Pi,NaOH-Pi,NaHCO3-Po,NaOH-Po,and Conc.HCl-Po in the rhizosphere were higher than those in bulk soil in different aged Amorpha except for NaHCO3-Po in Y28 .Available P in the rhizosphere had a significant relationship with Dil.HCl-Pi and Conc.HCl-Po.H2 O-Pi and total P had a significant relation-ship.Available P and pH in the rhizosphere and out of the rhizosphere did not have a significant relationship with total P in the rhizosphere.关键词
毛乌素沙地/紫穗槐/不同种植年限/根际土壤/磷组分Key words
Mu Us Desert/Amorpha fruticosa/different planting years/rhizosphere/phosphorus fractions分类
农业科技引用本文复制引用
李金辉,卢鑫,周志宇,赵萍,金茜,周媛媛..不同种植年限紫穗槐根际非根际土壤磷组分含量特征[J].草业学报,2014,(6):61-68,8.基金项目
国家科技支撑计划资助项目（2007BAD80B05）和国家自然科学基金项目（31201849）资助。 （）
