Impact of different N, P, K application  rates on apple container seedling growth
HANG Ruiqing, SUN Xiao,YANG Jianchao,SUN Qingtian,SUN Yanxia, JIANG Zhongwu
SHANDONG SCIENCE . 2016, (1): 98 -104 .  DOI: 10.3976/j.issn.1002-4026.2016.01.017