华北农学报 ›› 1992, Vol. 7 ›› Issue (2): 71-76. doi: 10.3321/j.issn:1000-7091.1992.02.013

所属专题: 杂粮作物 土壤肥料

• 论文 • 上一篇    下一篇

荞麦植株氮磷含量与施肥指标的研究

王永亮1, 刘基业1, 戴庆林2   

  1. 1. 内蒙古伊克昭盟土肥工作站, 东胜, 017004;
    2. 内蒙古农业科学院土肥所, 呼和浩特, 010030
  • 出版日期:1992-06-28

A Study on Nitrogen and Phosphorus Level in Buckwheat Seedling and Fertilizer Application Index

Wang Yongliang1, Liu Jiyie1, Dai Qinglin2   

  1. 1. Yimeng Soil and Fertilizer Test Station, Dongsheng;
    2. Soil and Fertilizer Research Institute, Inner Mongolia Academy of Agric. Sciences
  • Published:1992-06-28

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-62.35x2;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-88.68x2;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。

关键词: 荞麦, 氮素, 磷素, 施肥指标

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.

Key words: Buckwheat, N and P levels in the seedling, Fertilizer applica- tion index

引用本文

王永亮, 刘基业, 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. doi: 10.3321/j.issn:1000-7091.1992.02.013.

Wang Yongliang, Liu Jiyie, Dai Qinglin. A Study on Nitrogen and Phosphorus Level in Buckwheat Seedling and Fertilizer Application Index[J]. ACTA AGRICULTURAE BOREALI-SINICA, 1992, 7(2): 71-76. doi: 10.3321/j.issn:1000-7091.1992.02.013.

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