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冬小麦氮素渗漏淋失规律测坑研究

Keywords: 冬小麦麦田,氮素,变化动态,渗漏流失

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Abstract:

通过测坑试验,研究了麦田渗漏水中氮素的变化动态和流失规律。结果表明,冬小麦田渗漏水中氮素以NO3--N为主,NO3--N作为氮素在土壤中流失的主要形态将成为施用氮肥造成地下水污染的重要来源;施用精制有机肥代替部分化学氮肥有利于减少麦田渗漏水中氮素的淋失,施用腐熟的粗猪粪没有这种效果。

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