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Combined photo shows farmer Chen Zhiming holds ducklings on July 17, 2018 (upper) and grown ducks on Oct. 13, 2018 at a rice field in Gaohu Town of Jing'an County, east China's Jiangxi Province. A mode of rice farming that uses ducks to eat insects and weeds in the field has been promoted in Jing'an County this year. It is an eco-friendly farming system which avoids using pesticide and fertilizer on rice while raising ducks in a natural way. (Xinhua/Xu Zhongting)
