YINCHUAN, July 20, 2016 (Xinhua) -- Chinese President Xi Jinping visits a vegetable greenhouse in Yuanlong Migrant Village of Minning Town in Yinchuan, capital of northwest China's Ningxia Hui Autonomous Region, July 19, 2016. Xi made a three-day inspection tour in Ningxia. (Xinhua/Ju Peng)