Biological Nitrogen Fixation of Vetch and the Availability of Vetch Incorporation N to Maize as Successive Crop
WU Yongcheng, LI Mengying, YANG Yunfei, LIU Shishan, ZENG Xiangzhong
ACTA AGRICULTURAE BOREALI-SINICA . 2019, (S1): 183 -189 .  DOI: 10.7668/hbnxb.201751565