不同耕作方式对春玉米种床质量的影响及其与幼苗群体建成和产量的关系

曹庆军, 李刚, 杨浩, 娄玉勇, 杨粉团, 孔凡丽, 李辛琲, 赵新凯, 姜晓莉

The Effects of Different Tillage Practices on Seedbed Quality and Its Relationships with Seedling Population Construction and Grain Yield of Spring Maize

Cao Qingjun, Li Gang, Yang Hao, Lou Yuyong, Yang Fentuan, Kong Fanli, Li Xinbei, Zhao Xinkai, Jiang Xiaoli

图2 免耕与条耕处理下风沙土（a）与黑土（b）种床土壤紧实度比较 ns表示差异不显著，“*”与“**”分别表示在0.05与0.01水平上差异显著，下同

Fig.2 Comparison of soil compaction of seed bed in aeolian sandy soil (a) and black soil (b) under no-till and strip-till ns indicates no significant difference;“*”and“**”mean significant differences at 0.05 and 0.01 levels, respectively, the same below