| 测土配方施肥对淀粉专用红薯产量的影响 |
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| 引用本文： | 胡思彬,潘大桥.测土配方施肥对淀粉专用红薯产量的影响[J].贵州农业科学,2009,37(5). |
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| 作者姓名： | 胡思彬 潘大桥 |
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| 作者单位： | 贵州省德江县农业局,贵州,德江,565200 |
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| 摘 要： | 采用氮、磷、钾肥"3414"田间试验设计方法,对德江县淀粉专用红薯豫薯抗病一号进行了氮、磷、钾肥施用配比试验.结果表明,氮、磷、钾肥在红薯上的效应曲线均是一条开口向下的抛物线.边际产量随施肥量的增加而降低.最佳产量施肥量为N 13.865 kg/667m2、P2O5 6.804 kg/667m2、K2O 21.757 kg/667m2,获得红薯产量3 639.281 kg/667m2 .
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| 关 键 词： | 淀粉专用红薯 产量 施肥量 |
The Effect of Different N,P and K Formulation Application on Yield of a Sweet Potato Variety with Starch Special Use in Dejiang County |
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| HU Si-bin,PAN Da-qiao.The Effect of Different N,P and K Formulation Application on Yield of a Sweet Potato Variety with Starch Special Use in Dejiang County[J].Guizhou Agricultural Sciences,2009,37(5). |
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| Authors: | HU Si-bin PAN Da-qiao |
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| Institution: | Dejiang Agricultural Bureau;Dejiang;Guizhou 565200;China |
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| Abstract: | The"3414"experiment design was used to study the effect of different N,P and K Formulation application on yield of a sweet potato variety with starch special use in Dejiang county.The results showed that 3 639.281 kg/667m2 of sweet potato could be obtained under the optimum formulation application including N 13.865 kg/667m2,P2O5 6.804 kg/667m2 and K2O 21.757 kg/667m2,and the marginal yield decreased with increase of application norm. |
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| Keywords: | sweet potato with starch special use yield application norm |
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