Effects of fulvic acid on regulation of endogenous hormones and nodulation ability of soybean
HOU Huiyun, XU Menglei, GUO Yuxian, YUAN Hongli, GAO Tongguo, ZHU Baocheng
Journal of Hebei University(Natural Science Edition) . 2021, (6): 709 -719 .  DOI: 10.3969/j.issn.1000-1565.2021.06.011