Zhao Yongzhuang (L) operates a drone to spray pesticide in a field in Beizhang Township, Wenshui County of north China's Shanxi Province, Aug. 20, 2024. Located in the eastern foot of Lyuliang mountains in Shanxi, Wenshui County is ideal for potato planting because of its large temperature difference between day and night. (Photo: Xinhua)

Zhao Yongzhuang prepares to water plants with drip irrigation devices in a cabbage mustard field in Beizhang Township, Wenshui County of north China's Shanxi Province, Aug. 20, 2024. (Photo: Xinhua)

Zhao Yongzhuang (L) checks the growth of cabbage mustard seedlings in Beizhang Township, Wenshui County of north China's Shanxi Province, Aug. 8, 2024. (Photo: Xinhua)

Zhao Yongzhuang (C) chats with villagers to learn about the weeding of cabbage mustard field in Beizhang Township, Wenshui County of north China's Shanxi Province, Aug. 20, 2024. (Photo: Xinhua)

Zhao Yongzhuang shows plucked cabbage mustard in a field in Beizhang Village, Wenshui County of north China's Shanxi Province, Sept. 20, 2024. (Photo: Xinhua)

A villager drives a seeding machine to plant cabbage mustard in a field in Beizhang Township, Wenshui County of north China's Shanxi Province, Aug. 19, 2024. (Photo: Xinhua)