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生态学杂志 ›› 1998, Vol. ›› Issue (2): 65-67.

• 研究报告 • 上一篇    下一篇

小麦玉米不同幅宽套作对种群生态关系和作物产量的影响

李萍萍, 陈欣   

  1. 南京农业大学农学系, 210014
  • 收稿日期:1996-04-15 修回日期:1996-05-20 出版日期:1998-04-10

Influence of Different Bed Width on the Interspecific Relationship and Yield in Relay Cropping of Wheat and Corn

Li Pingping, Chen Xin   

  1. Agronomy Department, Nanjing Agricultural University, 210014
  • Received:1996-04-15 Revised:1996-05-20 Online:1998-04-10

关键词: 番茄, 盐碱胁迫, 亚精胺, 氮代谢, 矿质元素

Abstract: Influence of different bed width on the interspecific relationship in relay cropping of wheat and corn was studied based on the field experiments. The results showed that increase of bed width from 1.2m to 2.4m could take marginal advantage of wheat and reduce marginal disadvantage of corn, so the crop yield of double cropping increased. And increased of the bed width was also helpful for mechanization of farm work under the relay cropping.

Key words: tomato, saline-alkali stress, spermidine, nitrogen metabolism, mineral element.