THE WALNUT TREE FLOURISHES IN SOILS THAT ALLOW ITS ROOTS TO EXTEND FREELY TO A DEPTH RANGING FROM 3 TO 3.5 METERS.
SELECTING A SITE FOR A WALNUT ORCHARD REQUIRES CONSIDERATIONS BEYOND JUST THE TYPE OF SOIL.
Careful examination of the subsoil to a depth of at least 3 meters is imperative.
In some cases, despite favorable surface soil conditions, the subsoil may comprise gravel and coarse sand, characterized by large pores that impede root growth due to excessive air circulation and drainage.
Optimal soil conditions for walnut tree cultivation involve a medium-textured composition with balanced nutrient levels, sufficient depth, and favorable physical structure facilitating unrestricted air and water movement. Ideally, these soils maintain a pH range of 5 to 8, with prime locations typically found in cooler riverside, coastal, and foothill regions.