小麦玉米亩产吨粮群体光合性能与配套技术的研究

Population Photosynthetic Ability of Wheat and Maize to Get 15t/ha Grains and Comprehensive Techniques

小麦、玉米一年两熟是我国北方实现亩产吨粮的主要种植模式，近几年来已有较大面积的吨粮田出现，但对其栽培理论的研究仍缺乏系统性，配套栽培技术尚不完善，以高投入获得吨粮较为普遍。作者在小麦玉米亩产吨粮群体光合能力、光能利用率、最佳群体结构和配套技术等方面进行了比较深入和系统的研究，取得了一些研究成果，提出了小麦、玉米亩产吨粮的冠层光合速率和光能利用率指标，并进一步完善了配套栽培技术。

In northern China, the main planting model to get 15t/ha grains a year has been double cropping of wheat with maize. In recent years, there have appeared large areas of field giving 15t/ha grains, but the studies on the culture theory have not been systematic and its comprehensive culture techniques have not been perfect, so high input is usually needed. The authors deeply and systematically studied photosynthetic ability, efficiency of energy conversion, best population structure, comprehensive techniques and so on. Many performances have been attained. The photosynthetic rate in canopy and efficiency of energy coversion to get 15t/ha grains are put forward, and the comprehensive culture techniques are more perfect.