冬小麦/春玉米/夏玉米间套作复合群体的高产机理探讨

在冬小麦－夏玉米两熟模式基础上开发的冬小麦／春玉米／夏玉米多熟间套模式，具有较高的生产潜力和资源利用效率，其单产水平和光热资源利用率提高20％多，是农田在吨粮基础上实现高产再高产的一种新尝试，该模式实现高产的关键是充分利用间套作复合群体高强度的纳密功能，并形成一个高光效的群体结构，使复合群体的受光改善和截光能力增强，从栽培技术角度，确定适宜的品种组合和田间配置，解决好春玉米的早播玉米是该式成功应用的关键。

Research on Mechanism for Maximum Yield of Intercropping Pattern Wheat/Corn/Corn

Based on the wheat corn double cropping system, the intercropping pattern of wheat/cron/corn was developed in Huang Huai Plain. The new pattern had higher productivity and resources use efficiency. The yield and the utilization rate of solar energy and heat increased by more than 20%. It showed that this new multiple cropping pattern is an effective way to further increase yield in this region. The key points for wheat/cron/cron pattern to get high yield are to construct multiple canopy structure to add total ears, and improve both of the light penetrating state and light intercepting capacity. The important cultivation measures for the wheat/corn/cron were to select suitable variety, moderate density and stripe type, especially to improve technologies of early planting and harvesting.