Rendimento de pimentão em função da adubação orgânica e mineral

This experiment was carried out in a field in Oratorios, Minas Gerais State, Brazil, to evaluate the effect of organic fertilization associated to mineral fertilization on the production of pepper. The experiment was arranged in the randomized block design, with four replications, in a 4 x 3 factorial scheme; four doses of organic fertilizer (0; 30; 60 and 90 t ha-1) three doses of mineral fertilization (0; 750 and 1500 kg ha-1 of the NPK 4-14-8 formulation applied to furrows at planting). Twenty-eight pepper seedlings, cultivar Magda, were distributed into each 14 m2 plot, at 1.0x0.5 m spacing. Nutrient contents were evaluated in the leaves at the beginning of flowering, production of total, commercial and non-commercial fruits were determined. Commercial fruits were classified based on the length and diameter, into extra, special and first class. The extra class accounted for most of the commercial fruit production. Fertilization with organic compost was efficient for pepper nutrition, increasing pepper yield. The mineral fertilizer had additional effect for fruit production. The highest yield of commercial fruits was estimated when associated 84.43 t ha-1 of composed organic with the highest dose of mineral fertilizer.