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农业环境科学学报 2004

秸秆还田情况下蚯蚓活动对稻麦轮作土壤磷素的影响

Keywords: 蚯蚓,全磷,有效磷,磷酸酶,秸秆还田

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Abstract:

通过长期田间小区试验研究发现,在稻麦轮作土壤中,蚯蚓活动并不降低土壤全磷含量,有效磷含量呈直线上升趋势。在秸秆混施时,蚯蚓活动提高了树脂磷、NaOH磷含量,而超声磷含量降低,就总体而言,易于作物吸收的无机磷(如树脂磷和NaHCO3磷)含量有所升高。

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