200 day-old pine seedlings were grown on 3 acid sandy soils in plastic pots under greenhouse conditions in order to investigate the mineral nutrition as a result of phosphorus, calcium carbonate and micro-nutrient fertilization. The 3 soils differed by their organic matter level. Dry weights, heights and mineral content (N, P, K, Ca, Mg) of seedlings were measured. Dry weight yield was enhanced significantly as rates of calcium carbonate fertilization increased (i.e. maxima 32% more than control for 8000 kg Ca0/ha) on the most organic soil (Table III). This beneficial effect is likely to be due to inorganic nitrogen which resulted from the stimulation of organic matter mineralization. Calcium carbonate fertilization decreased P, Mg and K translocation from root to shoot (Tables IV & V) and increased nitrogen mobilization (Table V). Dry biomass yield increased as rates of phosphorus increased except for the highest rate (250 mglkg P2 O5) in the most organic soil (Table III). Generally, phosphorus acted as a secondary growth limiting factor and could decrease the growth when it was highly concentrated. Phosphate fertilization logically increased the phosphorus nutrition and also N, Mg, K mobilization (Table V); calcium absorption was enhanced but not its translocation.