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通过对麦田套种玉米叶片生长及不同展开叶期追肥对产量影响的研究。结果表明:麦套玉米的叶片总数与单作玉米相同或相差1片,小麦收获时,套种玉米展开叶2～3片,可见叶4～5片为适宜套种时间;麦套玉米应重施攻秆肥,叶龄指数40～50为适宜追肥期。本研究结果可作为黄淮海地区麦田套种玉米栽培管理的参考。
Effect of topdressing corn on leaf yield and wheat yield in wheat field intercropped with maize leaves. The results showed that the total number of leaves of wheat was the same as or different from that of single corn. When wheat was harvested, 2 to 3 leaves of corn were planted, and 4 to 5 leaves were suitable for intercroping; Stalk fertilizer, leaf age index 40 ~ 50 for the top-dressing period. The results of this study can be used as a reference for cultivation and management of intercrop corn in Huang-Huai-Hai region.