Planting and irrigating method for intercropping of red date trees and cotton

The invention relates to a planting and irrigating method for intercropping of red date trees and cotton and belongs to the technical field of crop cultivations. According to the planting and irrigating method, line spacing of the red date trees is 4m, and space among the red date trees is 1.5m or 1m; the cotton is planted in a ridging mode, a ridge of cotton is planted between every two lines of the red date trees and covered with mulching film, and four lines of cotton are planted in each ridge which is 10cm-20cm high and 140cm wide; irrigation ditches are dug in two sides of each line of the red date trees, a 40cm distance is reserved between the irrigation ditches and the red data trees, and a 40cm distance is reserved between the irrigation ditches and the cotton; each irrigation ditch is 50cm wide and 30cm deep. The red date trees are irrigated by pouring water into the irrigation ditches, and water in the irrigation ditches permeates downwards and outwards to reach roots system far away from tree truck