氮、磷、钾不同施肥水平对苹果容器苗生长的肥料效应研究

张瑞清，孙晓，杨剑超，孙庆田，孙燕霞，姜中武

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

山东科学 . 2016, (1): 98 -104 . DOI: 10.3976/j.issn.1002-4026.2016.01.017