Kunmujia post is more than 4,900 meters above sea level, with an average annual temperature of less than 5°C, and a minimum temperature of -30°C. Snow does not melt all year round, and the frozen soil layer is 7 meters thick. In harsh environmental conditions, green vegetables are difficult to grow.

In order to solve the problem of border defense officers and soldiers eating vegetables in winter, the officers and soldiers built a "plant factory" by themselves to eat fresh vegetables in cold winter days.

The "plant factory" adopts a clean energy recycling system. Solar panels provide electricity and light to supplement the growth cycle of plants. It is also equipped with a micro-oxygen chamber and added drainage and dehumidification equipment so that green vegetables can also be used in plateau outposts in winter. Full of vitality.

Lettuce, Shanghai greens, pea sprouts and other vegetables are growing well, and new varieties of vegetables are undergoing trials.