Effect of lead on plant availability of phosphorus and potassium in a vegetable–soil system

被引:0
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作者
Wen-yan He
Xiao-e Yang
Jin-yan Yang
Zhen-li He
机构
[1] Sichuan University,College of Architecture and Environment
[2] Zhejiang University,College of Environmental and Resource Sciences
[3] University of Florida-IFAS,undefined
[4] Indian River Research and Education Center,undefined
关键词
Available nutrients; Soil pollution; Lead; Phosphorus; Potassium;
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中图分类号
学科分类号
摘要
Two typical red soils were sequentially cultivated with celery (Apium graveolens L.) and Chinese cabbage (Brassica chinensis L.) in a greenhouse to determine the effect of lead (Pb) on plant availability of phosphorus (P) and potassium (K) in the soils. The concentrations of available P as estimated by the 0.05 mol L−1 HCl-0.025 mol L−1 (1/2 H2SO4) extraction and available K estimated by the NH4OAc extraction method in the crop-free soils were not affected by Pb treatment. Plant P concentrations in the above-ground part of celery and Chinese cabbage exposed to Pb were either lower or showed no significant difference to the control.
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页码:34793 / 34797
页数:4
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