半干旱区旱地莜麦宽幅匀播肥料效应试验初报
Agricultural Technology & Equipment(2022)
Abstract
为了研究莜麦宽幅匀播肥料效应,为莜麦宽幅匀播栽培技术大面积推广应用提供理论依据,进行了半干旱区旱地莜麦宽幅匀播肥料效应试验.结果表明:莜麦宽幅匀播技术能显著提高氮、磷、钾肥料利用效率,氮、磷、钾肥利用效率增长率均高于常规条播.莜麦宽幅匀播缺氮区相对产量为85.08%,较常规条播低1.78个百分点;缺磷区相对产量为87.34%,较常规条播低8.5个百分点;缺钾区相对产量为97.23%,较常规条播低0.71个百分点.宽幅匀播氮的施肥依存度为14.92%,常规条播氮的施肥依存度为13.14%,宽幅匀播磷的施肥依存度为12.66%,而钾的施肥依存度2个处理的依存度仅2%左右.因此,该区域大田缺氮、少磷、富钾.
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Key words
hulless oat,dry land,broad and uniform sowing,fertilizer effect,test
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