[EJ-15-4]Reducing excessive nitrogen use in Chinese wheat production through knowledge training: What are the implications for the public extension system?

Author：　　Periodical： 　　Source：

Author：Jia, Xiangping, Jikun Huang, Cheng Xiang and David Powlson　　Periodical：Agroecology and Sustainable Food Systems, 39 (2015):189–208.　　Source： ccap

ASFS_2015_4.pdf