Improving Rabbiteye Blueberry Performance in a Calcareous Soil by Growing Plants in Pits Filled with Low-CaCO3 Growth Media

Calcareous soils are not suitable for blueberry cultivation. Our aim was to improve the performance of plants in calcareous by using pits filled with growth media combination high levels RNH4+ (proportion N-NH4+ among total applied N). Rabbiteye (Vaccinium virgatum Ait. cv. Ochlockonee) were grown a tuff/peat mixture (TP), sandy soil (S) or (CC), full factorial three RNH4+: 33%, 66% 100%. The two higher treatments decreased pH low-CaCO3 and no-CaCO3 (TP) ≤6.0 over 250 days fertilization, but did affect CC 650 days. Plant superior TP S media, as compared soil. type medium dominant factor accounting improved plant performance. sensitive Mn deficiency leaves during spring period. current results suggest that growing good aeration low buffering capacity level is positive approach its cultivation soils.