摘要
以小麦玉米平作(简称麦玉平作)为对照,研究了北京地区小麦/玉米/玉米间套作(简称麦玉玉间套作)模式下,小麦、玉米的光合变化。结果表明,麦玉玉间套作增产的主要机制是构建了较为理想的光合群体结构,其中小麦较对照光合叶片叶绿素含量提高8.88%,光合速率较对照提高30.29%;夏玉米较对照光合叶片叶绿素含量提高4.07%,光合速率较对照提高14.54%。
The mechanism of wheat/corn/corn cropping pattern (WCCCP) with high yield lay in an idealized multiple population.Compared to wheat—corn sequential cropping pattern (WCSCP),WC- CCP had higher leaf chlorophyll content and higher leaf net photosynthesis.
基金
国家重点基础研究发展规划项目(编号:G1998010100)。
