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Evolution of soil fertility in a long-term fertilizer experiment
Author(s): 
Pages: 353-357
Year: Issue:  5
Journal: ACTA AGRICULTURAE ZHEJIANGENSIS

Keyword:  长期肥料定位试验土壤肥力主成分分析;
Abstract: 利用定位研究方法,在浙江省渗育水稻土上,比较了不同的施肥模式下对稻田土壤肥力演变规律的影响.结果表明,稻田不均衡养分管理对土壤养分演变具有突出的影响,配施有机肥不仅使土壤养分积累明显,同时也具平衡土壤酸碱度的作用.主成分分析表明,从施肥对作物产量和土壤肥力的综合影响,以MNPK处理为最优,此项分析结果与方差分析结果相互印证,结果完全一致.
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