Disadvantages of planting pistachio trees close together

If the planting distance is short, it will Iranian Pistachio cause the leaves of the trees to penetrate each other and as a result, it will create shadows on the branches of other trees and not enough light will reach the crown of the tree and the quality of the product will decrease. At long distances from each other, the number of trees per hectare decreases and the yield per unit area will not be economically viable. The diameter or radius of the shade determines the distance between the trees. The distance should be such that when the tree grows it does not interfere with the leaf branch of the side tree. If the distance is too close, firstly, the discussion of light competition and shading will not allow the trees to grow optimally, and secondly, it will have a negative effect on the quantity and quality of the product in the future.