Project supported by the National Natural Science Foundation of China (No. 30390080);the Nanjing Science and Technology Bureau,China (No. 200901063)
A variable-charge (VC) and a permanent-charge paddy soil (PC) were selected to study nitrate-N (NO3^--N) and ammonium-N (NH4^+-N) leaching with N isotopes for one consecutive year. An irrigation and intermitt...
the National Natural Science Foundation of China (30390080and 30521001);the Ministry of Science and Technology of China(2005CB120900 and 2004CB117200)
Rice has a preference for uptake of ammonium over nitrate and can use ammonium-N efficiently. Consequently, transporters mediating ammonium uptake have been extensively studied, but nitrate transporters have been larg...