supported by the National Natural Science Foundation of China(No.30671207,30871600);Zhejiang Provincial National Natural Science Foundation of China(No.Y5080067);the Doctoral Scientific Research Foundation of Luoyang Institute of Science and Technology(No.2008BZ04)
To investigate the nitrifying activities of different soil types, soil samples collected from 8-, 50- and 90-year old tea orchards, the adjacent wasteland, and 90-year old forest were measured for their nitrification ...