干旱区研究
Effects of different levels of nitrogen addition on leaf-stem sizes of Malus sieversii seedlings
HUA Zhaohui,TAO Ye,YAN Jingming,ZHOU Xiaobing,ZHANG Jing,ZHANG Yuanming
Arid Zone Research . 2022, (1): 210 -219 .  DOI: 10.13866/j.azr.2022.01.20