Desert area steam irrigation device and planting method

The invention provides a desert area steam irrigation device and a planting method, and belongs to the technical field of agricultural planting. The desert area steam irrigation device comprises an evaporator, a flash tank, a gas conveying pipeline, a water-permeable, gas-permeable and gas-guide channel and an air supply mechanism. The desert area planting method applies the desert area steam irrigation device. According to the invention, not only can the soil body be humidified and plants be irrigated, but also seawater, saline-alkali water and other water which is difficult to be used for irrigation can be used for irrigation, the utilization rate of the water is very high, fresh water resources can be greatly saved, and planting of drought-enduring plants and desertification control in arid regions are facilitated; the influence of the environment temperature is very small, the device can be used all the year round, plant root systems can be kept, and the survival rate of plants can be increased; long-term