施肥对半干旱沙地玉米生产力及其稳定性的影响
张蕊, 武雅琳, 李玉霖, 连杰

The influence of fertilization on the sandy farmland productivity and stability of corn in semi-arid areas
Rui Zhang, Yalin Wu, Yulin Li, Jie Lian
图1 施肥对沙质农田玉米生物量的影响
注:不同小写字母表示同一年份不同处理间差异显著(P<0.05)。CK:对照;ST:秸秆还田;CH:化肥;FA:农家肥;CF_2:化肥农家肥减半;CH_2:化肥减半
Fig.1 The effect of fertilization on the biomass of corn in sandy farmland