1. Suspension hydroponics cultivation: the roots of vegetables are suspended in water filled with nutrient solution, and the oxygen content in the water is ensured by air pump and oxygen supply system. The roots of vegetables absorb the required nutrients through the nutrient solution in water, without using soil as the medium. This planting method can save land resources and reduce the risk of soil pollution.

2. Vertical hydroponic planting: according to the growth needs of vegetables, vegetables are planted on vertically arranged shelves. Each floor is supplied with water and nutrient solution, which is provided to plants by drip irrigation or sprinkler irrigation. This planting method can grow more vegetables in a limited space and improve the land utilization rate.

3. Flowing hydroponics cultivation: put the roots of vegetables in flowing water, which carries nutrients and oxygen. The roots of vegetables absorb the required nutrients through the nutrients in the water flow, and the water flow also provides sufficient oxygen supply. This planting method can maintain the circulating flow of water, provide stable nutrient supply and promote plant growth.