Farmers learn scientific farming knowledge in the field in Songshan District of Chifeng City of north China's Inner Mongolia Autonomous Region, September 25, 2009. A hundred of farmers from different counties and districts of Chifeng visited Songshan and Hongshan districts to exchange and learn scientific farming knowledge on Friday. [Xinhua]

A farmer learn scientific farming knowledge in the field in Songshan District of Chifeng City of north China's Inner Mongolia Autonomous Region, September 25, 2009. [Xinhua]