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接种AM真菌对Cu污染土壤中紫云英吸收NPK的影响

Keywords: AM真菌,紫云英,Cu,N,P,K

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Abstract:

以盆栽试验法分析了在土壤Cu水平为0、20、50、100、150mg·kg-1的条件下,接种Glomusintraradices,接种Glomusmosseae及混合接种Glomusintraradices、Glomusmosseae对宿主植物紫云英吸收N、P、K的影响。结果表明,与不接种相比,接种AM真菌显著提高了宿主植物对N、P、K的吸收,土壤中Cu浓度越高,接种处理对紫云英吸收N、P、K的效果越显著。在Cu污染土壤中接种AM真菌增加宿主植物对N、P、K等营养元素的吸收有可能是宿主植物对Cu污染抗性提高的原因之一。

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