旋耕深度对西北黄土高原旱作区土壤水分特性和马铃薯产量的影响

张绪成, 马一凡, 于显枫, 侯慧芝, 王红丽, 方彦杰, 张国平, 雷康宁

Effects of tillage depth on soil hydrological characteristics and potato yield on northwest Loess Plateau

ZHANG Xu-Cheng, MA Yi-Fan, YU Xian-Feng, HOU Hui-Zhi, WANG Hong-Li, FANG Yan-Jie, ZHANG Guo-Ping, LEI Kang-Ning

图7 不同旋耕深度对马铃薯叶片SPAD值和叶面积指数的影响 标以不同小写字母表示处理间在0.05水平差异显著。处理同图3。

Fig. 7 Effects of different tillage depths on leaf SPAD value and leaf area index of potato The bar with different lowercase letters mean significant difference among treatments at the 0.05 probability level. Treatments are the same as those given in Fig. 3.