Dry Matter Amount Growing Trend of Alfalfa in Semi—-arid Region of Gansu
SHI Jie1,2
1.Institute ofArid Meteorology,CMA,Key Laboratory ofArid Climatic Change and Reducing Disaster of Gansu Province,Key Open Laboratory of Arid Climate Change and Disaster Reduction of CMA,Lanzhou 730020,China;2.The Agricultural Meteorological Experiment Station ofDingxi,Dingxi 743000,China