Farmers plant tomato sprouts inside a greenhouse of Xingtai Modern Agricultural Zone in Shenzhou, north China's Hebei Province, Feb. 24, 2019. In recent years, relying on modern agricultural zone construction, Shenzhou authority promotes scientific, brand and green development in agriculture. A total of six provincial or municipal modern agricultural zones have been established, covering industries such as fruit and vegetable. (Photo: Xinhua)

A farmer hangs a sticky trap for disinsection inside a greenhouse of Xingtai Modern Agricultural Zone in Shenzhou, north China's Hebei Province, Feb. 24, 2019. In recent years, relying on modern agricultural zone construction, Shenzhou authority promotes scientific, brand and green development in agriculture. A total of six provincial or municipal modern agricultural zones have been established, covering industries such as fruit and vegetable. (Photo: Xinhua)

Farmers take care of tomato plants inside a greenhouse of Xingtai Modern Agricultural Zone in Shenzhou, north China's Hebei Province, Feb. 24, 2019. In recent years, relying on modern agricultural zone construction, Shenzhou authority promotes scientific, brand and green development in agriculture. A total of six provincial or municipal modern agricultural zones have been established, covering industries such as fruit and vegetable. (Photo: Xinhua)