Tilling between rows of gardens to break hard layers of pistachio shell soil and using heavier machines to break hard layers of soil and soften it as long as it is at least 120 cm away from the tree will be effective in permeating the garden soil.
The use of light or heavy machines, either one-way or two-way, although it damages part of the roots, despite this soil remediation, compensates for the lack of damaged roots and prepares them to create new roots. Better results will be obtained if mechanical soil remediation operations are carried out once a year in the autumn after harvest when the soil is dry.