
A farmer picks marigold in Pingquan County, Chengde City, north China's Hebei Province, Aug. 8, 2015. There are 10,000 mu (about 666 hectares) of marigold fields in Pingquan county. (Xinhua/liu Huanyu)

A farmer picks marigold in Pingquan County, Chengde City, north China's Hebei Province, Aug. 8, 2015. There are 10,000 mu (about 666 hectares) of marigold fields in Pingquan county. (Xinhua/liu Huanyu)