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应用生态学报 ›› 1999, Vol. 10 ›› Issue (3): 309-311.

• 研究论文 • 上一篇    下一篇

黄土高原沟壑区水肥因子对冬小麦经济性状的影响

李向民1, 许春霞1, 李开元2   

  1. 1. 陕西省2中国科学院西北植物研究所, 杨陵 712100;
    2. 中国科学院水土保持研究所, 杨陵 712100
  • 收稿日期:1997-01-29 修回日期:1998-05-20 出版日期:1999-05-25 发布日期:1999-05-25
  • 通讯作者: 李向民,男,1956年出生,副研,主要从事植物生态学研究,发表论文30余篇,E-mail:xuchx@ms.iswc.ac.cn E-mail:xuchx@ms.iswc.ac.cn
  • 基金资助:

    国家“八五”科技攻关项目(85-008-01-03).

Effect of water and fertilizer on economic properties of winter wheat in Loess Plateau galley regions

Li Xiangmin1, Xu Chunxia1, Li Kaiyuan2   

  1. 1. Northwest Institute of Botany, Shaanxi Province and Academia Sinica, Yangling 712100;
    2. Soil and Water Conservation Institute, Academia Sinica, Yangling 712100
  • Received:1997-01-29 Revised:1998-05-20 Online:1999-05-25 Published:1999-05-25

摘要: 利用田间试验方法,研究了不同水肥条件对冬小麦主要经济性状的影响。结果表明,限制黄土高原沟壑区冬小麦生产的最主要因素是肥而不是水。在任何灌水条件下,施肥对冬小麦的经济性状都有明显的正效应;而只有在施肥的条件下,灌水才有正效应;否则,灌水反而有负作用。

关键词: 黄土高原, 冬小麦, 经济性状, 水肥, 连作, 库容量, 源活性, 马铃薯, 库活性, 库源关系

Abstract: Field experiment shows that in Loess Plateau galley regions, the most important limiting factor for wheat growth was fertilizer instead of water. With irrigation, fertilization had a significant positive effect on the economic properties of winter wheat, while irrigation could have a positive effect only when the fertilizer was applied.

Key words: Loess Plateau, Winter Wheat, Economic factors, Water and fertilizer, continuous cropping, sink-source relationship, sink size, source activity, potato, sink activity