The family started farming this year in pursuit of healthy eating, fearing pesticide-polluted vegetables at the market.

They soon realized that farming provides far more than healthy vegetables, and farming at the weekend has become a regular family activity.

"My parents came to Beijing to help look after my son, and they were unhappy because they don't have friends here and don't quite fit in, especially as my son grows older," Xie says.

"But since renting the farm plot, they have been busy and very happy. They feel as though they have achieved something and have made friends with other farmers here."

Mud, insects and plants

Her parents visit the farm every two days and are involved in everything, from applying organic fertilizers, turning the soil, sowing, watering, weeding and harvesting.

The son also loves the farm, enjoying leisure time that is different to that of his city friends. He delights in playing in the mud, observing insects, seeing plants grow, chasing butterflies and watching the farm animals, Xie says.

However, Li and Xie say it is difficult for young people to work on the farm regularly if they are busy and are not that keen on farming.