Study on Rich-lack Index of Soil Available P and Recommended Phosphate Fertilizer Application Rates for Alfalfa on the Inner Mongolia Plateau of China
WANG Yan, ZHU Kai-di, SUN Hong-ren, WANG Xian-guo, GAO Kai, ZHANG Yu-xia, LIU Ting-yu
Acta Agrestia Sinica . 2020, (2): 577 -582 .  DOI: 10.11733/j.issn.1007-0435.2020.02.035