Nitrogen acquisition, fixation and transfer in maize/alfalfa intercrops are increased through root contact and morphological responses to interspecies competition

SHAO Ze-qiang, ZHENG Cong-cong, Johannes A. POSTMA, LU Wen-long, GAO Qiang, GAO Ying-zhi, ZHANG Jin-jing

Journal of Integrative Agriculture . 2021, (8): 2240 -2254 . DOI: 10.1016/S2095-3119(20)63330-5