MISHAN, June 27, 2016 (Xinhua) -- Farmers put ducks in a rice field in Zhuangxing Village of Taiping Town, Mishan City, northeast China's Heilongjiang Province, June 27, 2016. A method of rice farming that relies on ducks to eat insects and weeds has been introduced to Mishan since this year. It's an eco-friendly farming system, avoiding using toxic pesticides while also utilizing duck's droppings as fertilizer. (Xinhua/Wang Song)
