supported by the National Basic Research Program of China (973 Program,2007CB109301);the National Key Technology R & D Program of China (2009BADC6B03);Asia-Europe Link Project (CN-Asia-Link-001,81468)
A field experiment with rice-rice rotation was conducted since 2002 in southeast China for investigating the response of soil microbial properties to intensive nitrogen fertilizer application. The tested soil was a su...