| 荞麦植株氮磷含量与施肥指标的研究 |
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| 引用本文： | 王永亮,戴庆林.荞麦植株氮磷含量与施肥指标的研究[J].华北农学报,1992,7(2):71-76. |
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| 作者姓名： | 王永亮 戴庆林 |
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| 作者单位： | 内蒙古伊克昭盟土肥工作站，内蒙古伊克昭盟土肥工作站，内蒙古农业科学院土肥所 东胜 017004 伊盟种子公司，东胜 017004，呼和浩特 010030 |
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| 摘 要： | 本文研究了荞麦产量与植株幼苗期氮、磷最适合量的关系,提出了氮、磷化肥的诊断施肥指标与失调、失控指标。结果表明,在荞麦出苗后10天,幼苗期植株含氮量最适范围为2.73～2.84％,产量与含氮量呈抛物线模式,y=-402.3+354.2x-62.35x~2;边际含氮量2.84％;低于2.73％时为氮素失调区,氮素供应不足,应补施氮肥。植株全磷含量最适范围为0.43～0.57％,产量与苗期植株含磷量的回归方程y=67.96+100.49x-88.68x~2;边际含磷量0.567％,低于0.43％时为磷失调区,磷素供应不足,应补施磷。施用尿素可以提高苗期含氮量;y=2.476+0.0498x,即亩增施1kg尿素可以提高植株含氮量0.0498％,施用三料磷可提高苗期含磷量,y=0.313+0.0378x,即亩增施三料磷肥1kg,植株苗期含磷量提高0.0378％。上述资料可作为调控施用氮磷化肥的基础依据。
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| 关 键 词： | 荞麦 氮素 磷素 施肥 指标 |
A Study on Nitrogen and Phosphorus Level in Buckwheat Seedling and Fertilizer Application Index |
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| Wang Yongliang Liu Jiyie.A Study on Nitrogen and Phosphorus Level in Buckwheat Seedling and Fertilizer Application Index[J].Acta Agriculturae Boreali-Sinica,1992,7(2):71-76. |
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| Authors: | Wang Yongliang Liu Jiyie |
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| Abstract: | The correlation between yield and optimal N and P levels in the seedling was studied for buckwheat, and the diagnosis and application indices as well as the maladjustment and maladministration indices were suggested for N and P fertilizers. |
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| Keywords: | Buckwheat N and P levels in the seedling Fertilizer applica- tion index |
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