The aim is to solve two problems in traditional irrigation agriculture, which are"water oxygen contradictions"and"root system grow to moisture and oxygen". With the application of modern technology of water and fertilizer coupling and aerated irrigation, an efficient water, fertilizer and gas coupling irrigation system was designed. The cultivation experiments of rice, cucumber and other crops were carried out by applying oxygation system. The results showed that compared with conventional irrigation, water-fertilizer and gas coupling irrig...