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高水肥集约栽培条件下，小麦／玉米复合群体的光合特性及作物生产力主要决定于作物本身的生理特性，而与诸生态因子间的相关性不显著。小麦组分的 Ｐｎ（光合速率）与 ＣＧＲ（作物牛产率）呈显著的正相关，而玉米组分的经济产量与抽雄期到灌浆期的Ｐｎ呈显著正相关。因此生产中可通过培育高光效品种或高水分利用效率的品种来实现作物的高产。
Under the conditions of high water and fertilizer intensive cultivation, the photosynthetic characteristics and crop productivity of the wheat / maize complex were mainly determined by the physiological characteristics of the crop, but not with the ecological factors. There was a significant positive correlation between Pn (photosynthetic rate) and CGR (crop yield) of wheat, while the economic yield of corn was positively correlated with Pn from tasseling to filling. Therefore, the production of high light efficiency by cultivating varieties or high water use efficiency varieties to achieve high-yield crops.