Aerial photo taken on June 19, 2020 shows farmers weeding at a rice field in Arda Village in Fuhai County, northwest China's Xinjiang Uygur Autonomous Region. Fuhai introduced high-quality rice varieties for trial planting in order to find a way to cultivate rice in cold and high-altitude environments. (Xinhua/Sadat)

Farmers weed at a rice field in Arda Village in Fuhai County, northwest China's Xinjiang Uygur Autonomous Region, June 19, 2020. Fuhai introduced high-quality rice varieties for trial planting in order to find a way to cultivate rice in cold and high-altitude environments. (Xinhua/Sadat)

Farmers weed at a rice field in Arda Village in Fuhai County, northwest China's Xinjiang Uygur Autonomous Region, June 19, 2020. Fuhai introduced high-quality rice varieties for trial planting in order to find a way to cultivate rice in cold and high-altitude environments. (Xinhua/Sadat)

Photo taken on June 19, 2020 shows a rice field in Arda Village in Fuhai County, northwest China's Xinjiang Uygur Autonomous Region. Fuhai introduced high-quality rice varieties for trial planting in order to find a way to cultivate rice in cold and high-altitude environments. (Xinhua/Sadat)