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不同生育期水稻对盐碱地不同土层土壤理化性质的影响

Journal of Water Resources and Architectural Engineering(2017)

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Abstract
通过在盐碱地种植水稻,采集试验田原裸地时期与插秧后、分蘖期、孕穗期、成熟期0 cm ~ 20 cm与20 cm ~ 40 cm土层土壤样品,比较分析了不同生育期水稻对盐碱地不同土层土壤pH、电导率、质地、有机质、全氮、有效磷及速效钾含量的影响.结果表明:种植水稻可缓解土壤盐渍化,在水稻各生育期0cm ~ 20 cm与20cm ~40cm土层土壤pH、电导率均有所降低,土壤中砂粒含量显著减少,粉粒含量显著增加;土壤有机质、全氮、有效磷、速效钾含量也显著提高.种植水稻可有效改良盐碱地土壤质地,改善土壤养分状况.
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