[CJ-11-20]The Impact of Farmer Field School on farmer’s Knowledge and Production: A Case Study of Facility Tomato Farmers in Beijing

Author：　　Periodical： 　　Source：

Author：Hu, Ruifa, Changkun Xiao, Jinyang Cai, Cheng Xiang　　Periodical：China Soft Science, No. 7 (2011), pp: 93-101.　　Source： ccap