supported by the Jiangsu Provincial Natural Science Foundation of China(No.BK-2010612);the Foundation of State Key Laboratory of Soil and Sustainable Agriculture,China(No.Y05-2010034);the National Natural Science Foundation of China(No.41001147)
The rice-wheat rotation in southern China is characterized by frequent flooding-draining water regime and heavy nitrogen(N)fertilization. There is a substantial lack of studies into the behavior of dissolved organic n...