杨粮复合系统内生态因子的变化及对小麦产量的影响

Ecof actor Changes' Impact on Wheat Output in Poplar-Crop System

通过对徐淮平原杨粮复合系统內不同物候期生态因子的变化规律研究发现,在杨树展叶期,不同株行距生态因子变化不明显,能满足小麦生长需要;在杨树展叶后,从全叶期到盛叶期,不同株行距生态因子变化有明显差异,并对小麦生长有一定影响。同时探讨了不同复合模式小麦产量的高低,从小麦产量的高低得出最佳的复合模式。

Through the analysis on the ecofactor＇s change rules during different phonological periods in polar-wheat system in Xuhuai plain, the author found： In Leaf-expansion period, ecological factors was nearly the same between different spacing in the rows, and it can satisfy the need of wheat. From omni leaf period to leaf-flourishing period, ecological factors of different spacing were obviously different, and can affect the wheat to some extent. Then it discussed the wheat output in different models of popular-crop and educed the best model.