Staff put rice seeds into a drone in Shuikou Township of Kaiping, south China's Guangdong Province, Feb. 26, 2020. A demonstration field project, a cooperation between Chinese drone maker DJI and a local agricultural cooperative, started sowing operation on Wednesday with the help of drones. (Xinhua/Mao Siqian)

A drone sows rice seeds in Shuikou Township of Kaiping, south China's Guangdong Province, Feb. 26, 2020. A demonstration field project, a cooperation between Chinese drone maker DJI and a local agricultural cooperative, started sowing operation on Wednesday with the help of drones. (Xinhua/Mao Siqian)

A drone sows rice seeds in Shuikou Township of Kaiping, south China's Guangdong Province, Feb. 26, 2020. A demonstration field project, a cooperation between Chinese drone maker DJI and a local agricultural cooperative, started sowing operation on Wednesday with the help of drones. (Xinhua/Mao Siqian)

An operator puts rice seeds into a drone in Shuikou Township of Kaiping, south China's Guangdong Province, Feb. 26, 2020. A demonstration field project, a cooperation between Chinese drone maker DJI and a local agricultural cooperative, started sowing operation on Wednesday with the help of drones. (Xinhua/Mao Siqian)

A drone sows rice seeds in Shuikou Township of Kaiping, south China's Guangdong Province, Feb. 26, 2020. A demonstration field project, a cooperation between Chinese drone maker DJI and a local agricultural cooperative, started sowing operation on Wednesday with the help of drones. (Xinhua/Mao Siqian)