Objective: The Purpose of this article is to provide scientific basis for its water and fertilizer management in South of Xinjiang under the condition of oasis irrigation, through analysis of the spatial distribution characteristics of apricot tree absorbing roots in apricot-wheat intercropping systems. Method: With profile digging and layered sampling methods, the spatial distribution of absorbing roots of 15-year-old apricot trees in the intercropping systems is analyzed by using WinRHIZO Pro2009a analysis system. Result: In horizontal directions (0-300 cm), the length density of the absorbing roots in the rows is decreasing with increasing distance from the trees. The maximum root length density is in the 0-50 cm from the trees. The length density of the absorbing roots between the rows is slightly increasing first, and then decreasing with increasing distance from the trees. The maximum root length density is in the 50-100 cm from the trees. The total length of the absorbing roots in the rows is only less 1.11% than it is between the rows. In vertical directions (0-150 cm), the length density of the absorbing roots in the rows and between the rows is increasing first, and then decreasing with increase of soil depth. The maximum root length density in the rows is in the 20-30 cm soil layer, and between the rows is in the 30-40 cm soil layer. Conclusion: Under the condition of oasis irrigation, the spatial distributions of apricot tree absorbing roots are differences between intra-row and inter-row in the intercropping systems, but the differences of total length of the absorbing roots are small. The 0-60 cm soil layer in the 0-120 cm from the trees is important for water and fertilizer management in apricot-wheat intercropping systems. The position of fertilization in the rows and between the rows should be under the crown 2/3-4/5 site at the prosperous fruit stage of apricot trees. The fertilization depth between the rows (30-50 cm) should be deeper about 10-20 cm than in the rows (20-40 cm).
