白花蛇舌草连作土壤元素含量分析
Chinese Wild Plant Resources(2013)
Abstract
目的:以未栽培白花蛇舌草、栽培一茬白花蛇舌草和栽培二茬白花蛇舌草大田土壤为研究对象,分析白花蛇舌草连作对土壤无机元素含量的影响。方法:用电感耦合等离子体原子发射光谱仪(ICP)测定土壤中Al、As、Cd、Co、Cu、Fe、Hg、Mg、Mn、Na、Ni、Pb、Sr、Zn等元素的含量,并与国家标准作比较。结果:随着白花蛇舌草连作年限的增加,土壤中除Na元素和Sr元素表现出富集外,其他元素的含量无明显变化。结论:白花蛇舌草对土壤无机元素无偏好性吸收。
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Key words
Continuous cropping,Inductively Coupled Plasma Atomic Emission Spectrometer,Hedyotis diffusa Willd.
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