耕作方式与秸秆还田对冬小麦-夏玉米轮作系统中干物质生产和水分利用效率的影响

赵亚丽, 郭海斌, 薛志伟, 穆心愿, 李潮海^*

Effects of Tillage and Straw Returning on Biomass and Water Use Efficiency in a Winter Wheat and Summer Maize Rotation System

ZHAO Ya-Li, GUO Hai-Bin, XUE Zhi-Wei, MU Xin-Yuan, LI Chao-Hai^*

图4 耕作方式与秸秆还田对冬小麦-夏玉米叶片 P n 和 T r 的影响2012 CT: 常规耕作; DT: 深耕; SS: 深松; AS: 秸秆全还田; NS: 无秸秆还田。S1: 冬小麦拔节期; S2: 冬小麦开花期; S3: 夏玉米拔节期: S4: 夏玉米开花期。柱形上不同字母表示处理间差异显著 P 0.05。
Fig. 4 Effects of tillage and straw returning on P n and T r in winter wheat-summer maize system in 2012 CT: conventional tillage; DT: deep tillage; SS: subsoiling; AS: all straw returning; NS: no straw returning. S1: jointing stage of winter wheat; S2: anthesis stage of winter wheat; S3: jointing stage of summer maize; S4: tassel stage of summer maize. Different letters above columns indicate significant difference among treatments P 0.05.