5G intelligent farmland in Weishi county of Kaifeng, Central China's Henan province, allows farmers to do farm work remotely by phones and could help them save water, human labor and improve production, experts said.

At a 666-hectare green wheat smart farmland in Weishi, unmanned aerial vehicles fly high spraying pesticide. The sprinklers automatically function to change the amount and direction of water, flexibly. All are controlled by computers after workers push some buttons.

The efficiency of irrigation grew by 30 percent. Production also increased by 1,343 kilograms per hectare on average, according to the county.

It also has a service center to enable farmers to see the whole situation, such as the soil, temperature and sunlight, on big screen. And it can forecast insect, pest or plant disease in advance to prevent a loss.

The county, with a population of 1.02 million and 88,000 hectares of farmland, is a national food production center that produces 650,000 metric tons annually, said Xu Guoxian, deputy head of the county.

Video by Shi Baoyin and Chen Meiling