【摘 要】
:
Efficient N fertilizer management is critical for the economic production of rice and the long-term protection of environmental quality. A field experiment was
【机 构】
:
KeyLaboratoryofHuazhongCropPhysiology,CollegeofAgriculture
【基金项目】
:
The authors sincerely thank Prof. Nie Lixiao, Huazhong Agricultural University, China, for his helpful revision of this paper. This research was supported by the Key Tech- nologies R&D Program of Chin