The objective of this work was to evaluate the effect of different sources and doses of phosphorus on coffee plant development and production, Acaiá Cerrado cultivate, MG 1474-lineage, on Distroferric Red Latosol, of Patrocínio Experimental Farm, belonging to EPAMIG. The experiment was installed on spacement of 3.50 x 0.70 m, in a randomized-block design, in a factorial 4 x 5, with four repetitions. The phosphorus sources were: "Araxá" phosphate, magnesium thermophosphate, Arad phosphate and triple superphosphate, all of them applied in five doses, corresponding to: 0 (zero), 125, 250, 500 and 1,000 g of P2O5 per meter of furrow. Each experimental plot was constituted by a line with eight plants, being used the four central ones as useful plants. Thirty and forty-one months after planting were evaluated the following characteristics: plant height, stem and canopy diameters and yield. The phosphorus sources had a similar behavior in relation to coffee development, 30 and 41 months after planting; 30 months after planting, the biggest yields were obtained when the triple superphosphate and the magnesium termophosphate were used; at 41 months, the biggest yields were obtained when the "Araxá" phosphate, the Arad phosphate and the magnesium termophosphate were used; the P2O5 doses influenced the coffee vegetative development, the best results were observed from 618,8 to 674,4 g of P2O5 per meter of furrow; the best yields were obtained with the doses from 539,7 to 855,0 g of P2O5 per meter of furrow, according to the used fertilizer, with exception of triple superphosphate, 41 months after planting, where the P2O5 maximum dose wasn't sufficient to obtain a maximum of yield.
Coffea arabica; Phosphorus manuring; natural phosphate; reative phosphate
