Growing Sand-Based Sod Using Transported Sand over Native Soil

Turfgrass establishment on sand-based rootzones is routinely accomplished using sod produced on a fine-textured native soil. As a result, soil layering occurs, potentially causing initial reduction in water infiltration, rooting, aeration, playability, and overall turfgrass quality. This research aimed at determining the feasibility of applying sand over existing native soil to produce hybrid bermudagrass (Cynodon dactylon [L.] Pers. x C. transvaalensis Burtt-Davy) sand-based sod. Treatments were, control (no sand applied), 25 mm of sand applied by topdressing, 25 mm of sand applied by topdressing plus aerification, 25 mm sand applied all at once, and 50 mm of sand applied all at once. Pre-harvest factors evaluated were visual quality and scalping. Treatments were harvested and transplanted to a sand-based rootzone where handle-ability, tensile strength, and infiltration were also evaluated. Results indicate 25 mm of sand applied by topdressing plus aerification treatments showed higher quality pre-harvest. Control and 25 mm treatments were best in terms of harvesting, handle-ability, and sod tensile strength. Infiltration data indicated no significant differences between treatments. These outcomes along with further analysis could provide sod producers with a valuable product for use on sand-based rootzones.