铅对蔬菜土壤系统中植物磷钾有效性的影响。
Effect of lead on plant availability of phosphorus and potassium in a vegetable-soil system.
机构信息
College of Architecture and Environment, Sichuan University, Chengdu, 610065, China.
College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China.
出版信息
Environ Sci Pollut Res Int. 2018 Dec;25(34):34793-34797. doi: 10.1007/s11356-018-3389-9. Epub 2018 Oct 20.
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 HCl-0.025 mol L (1/2 HSO) extraction and available K estimated by the NHOAc 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.
两种典型的红壤在温室中先后种植芹菜（Apium graveolens L.）和白菜（Brassica chinensis L.），以确定铅（Pb）对土壤中磷（P）和钾（K）植物有效性的影响。用 0.05 mol/L HCl-0.025 mol/L（1/2 HSO）提取法估计的有效 P 浓度和用 NHOAc 提取法估计的有效 K 浓度在无作物土壤中不受 Pb 处理的影响。暴露于 Pb 的芹菜和白菜地上部分的植物 P 浓度与对照相比要么更低，要么没有显著差异。
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