Tractor drivers throw Tsampa up into the air during a ceremony to mark the start of the spring farming season at Dagze County, southwest China's Tibet Autonomous Region, March 15, 2009. (Xinhua/Chogo) 

 Women present highland barley wine to tractor drivers during a ceremony to mark the start of the spring farming season at Dagze County, southwest China's Tibet Autonomous Region, March 15, 2009. (Xinhua/Chogo)