宁南旱区沟垄集雨结合覆盖对土壤水热肥与马铃薯产量的影响

吴春花, 普雪可, 周永瑾, 勉有明, 苗芳芳, 李荣

Effects of ridge-and-furrow rainwater harvesting with mulching on soil water- heat-fertility and potato yield in arid areas of southern Ningxia

WU Chun-Hua, PU Xue-Ke, ZHOU Yong-Jin, MIAN You-Ming, MIAO Fang-Fang, LI Rong

图4 不同处理下0~40 cm层土壤有机碳和全氮含量及碳氮比 处理同图2。柱上不同小写字母表示不同处理间差异达0.05显著水平。

Fig. 4 Contents of soil organic carbon and total nitrogen, and C/N ratio in 0-40 cm layer under different treatments Abbreviations are the same as those given in Fig. 2. Different lowercase letters above the bars indicate significant difference among the treatments at P < 0.05.