2018, Vol. 17(03): 664-676    DOI: 10.1016/S2095-3119(17)61836-7
Optimized nitrogen application methods to improve nitrogen use efficiency and nodule nitrogen fixation in a maize-soybean relay intercropping system
YONG Tai-wen1*, CHEN Ping1*, DONG Qian2, DU Qing1, YANG Feng1, WANG Xiao-chun1, LIU Wei-guo1, YANG Wen-yu  
1 College of Agronomy, Sichuan Agricultural University/Key Laboratory of Crop Eco-physiology and Farming System in Southwest, Ministry of Agriculture, Chengdu 611130, P.R.China
2 Shehong Farm Bureau, Suining 629200, P.R.China
Received 2017-07-26  Revised null
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