Pomegranate in the cultivation of cuttings, pressure, planting and other asexual reproduction methods, except for special needs, rarely with seed reproduction, so in the structure of the main by the lateral roots constitute a strong root group. Pomegranate root system has a strong adaptability, cultivation of field conditions and management measures can significantly affect the distribution of the root system.
According to the observation of soil profile, under the condition of near-wild hillside land, the root system is concentrated in the soil layer of 15~50 centimeters, and the number of vertical roots is high. Under unfavorable conditions such as arid mountain beams, barren slopes, and terraced ridge edges, the vertical roots increased significantly in addition to well-developed lateral roots. In fertile production gardens, the pomegranate root system to 30 ~ 60 cm for the most, to horizontal, oblique roots, vertical roots are less and less developed, this situation is more obvious in the high fertilizer, shallow tillage of the garden.
So, deep tilling and soil modification, deep application of organic fertilizer, and proper irrigation can induce the root system to grow to the depth, which is very beneficial for enhancing the tree's strength and improving drought resistance.
The pomegranate root system has a strong regenerative capacity, after being traumatized or cut off, the root segments remaining in the soil can often sprout new branches and form independent monocultures. Therefore, pomegranate can be used to maintain soil and water on mountain slopes, is one of the excellent tree species. In Lintong production area of the masses have along the ditch, ridge edge, barren slopes, beach planting habits, received a very good ecological and economic benefits.
Pomegranate trunk base is very easy to produce sprouting seedlings, has a strong regenerative capacity, if the use of planting seedlings, can be cultivated at the base of the fertilizer soil to increase the rooting, but also can be curved branches buried in the soil for the pressure of the propagation. Otherwise, it is desirable to remove the sprouting tiller from the sprouting place as early as possible, not to leave the stump, so as to avoid the cumulative years of thinning and not exhaustive, consuming too much soil water and fertilizer, affecting the normal growth and development of the main trunk.