秸秆带状沟覆垄播对旱地马铃薯产量和水分利用效率的影响

陈玉章,田慧慧,李亚伟,柴雨葳,李瑞,程宏波,常磊,柴守玺

Effects of straw strip mulching on furrows and planting in ridges on water use efficiency and tuber yield in dryland potato

Yu-Zhang CHEN,Hui-Hui TIAN,Ya-Wei LI,Yu-Wei CHAI,Rui LI,Hong-Bo CHENG,Lei CHANG,Shou-Xi CHAI

图3 不同处理马铃薯各生育时期的土壤贮水量动态 SW: 播种期; SD: 苗期; BR: 分枝期; TI: 块茎形成期; TB: 块茎膨大期; SA: 淀粉积累期; MT: 成熟期。处理代号见图2。误差线表示平均值的标准误(n = 3)。标明不同小写字母的柱值表示各处理的平均值(n = 3)在P < 0.05水平上差异显著。

Fig. 3 Soil water storage in 0-2 m depth under different treatments SW: sowing; SD: seedling; BR: branching; TI: tuber initiation; TB: tuber bulking; SA: starch accumulation; MT: maturity. Treatments are as these described in Fig. 2. Error bars indicate the standard error for each date point (n = 3). Mean value (n = 3) columns at each growth stage indicated with different lowercase letters are significant by different at P < 0.05.