Comportamento agronômico da pimenta-malagueta e do pimentão, submetidos a diferentes concentrações de biofertilizante e lâminas de irrigação.

Abstract

This study aimed to investigate the effects of concentrations of bio-fertilizers and irrigation laminas on the growth, yield and quality of production of chillies and peppers. The experiments with these cultures were conducted at the Center for Agricultural Sciences and Humanities - CCHA , at the State University of Paraíba - UEPB , Campus IV , in Catolé do Rocha, Paraíba. In two experiments , conducted at different times , the effects of five concentrations of biofertilizers ( C1 = 0 , C2 = 15 , C3 = 30 , C4 = C5 = 45 and 60 ml L-1 ) and five irrigation laminas ( L1 = 80 % = 90 % L2 , L3 = 100 % , L4 and L5 = 110 % = 120 % IN - Irrigation Water Need ) on the growth , yield and quality of production of chillies and peppers. The experimental type was a randomized block design, with 25 treatments, in a 5x5 factorial arrangement with 4 replications , totaling 100 plots . The experimental plots in both experiments consisted of two plants. The biofertilizers used in the fertilization coverage were produced in an anaerobic form , in plastic containers ( digesters ) with an individual capacity for 240 liters. The research results show that the growth variables of chilli were increased to great limits of concentrations of biofertilizers , with reductions from these levels ; the growth variables of chili had linear increases with increasing concentrations of bio-fertilizers and irrigation laminas; the fresh and dry matter of chilli increased linearly with increasing concentration of biofertilizers, being more pronounced in bigger irrigation laminas; the maximum number of fruits per branch and per plant of chilli was provided by the concentration of biofertilizers of 60 ml L-1 within the L5 lamina ( 120 % IN ) or the optimum lamiina of 100 % IN within the concentration of 60 ml L-1; the maximum weights of fruit per branch and per plant of chilli were provided by the concentration of biofertilizers of 60 ml L-1 within the L5 lamina ( 120 % IN ) or by the IN blade of 120 % within the concentration of 60 ml L-1 ; the maximum number of fruit per plant was provided by the optimum concentration of 35.6 ml L-1 within the L4 lamina ( 110 % IN ) or by the optimal lamina of 104.5 % within the IN concentration of 30 ml L-1 ; the fruit weight of chilli increased linearly with increasing irrigation lamina ; the total soluble solids of chillies were reduced with increasing concentration of biofertilizers to the extent of 30.9 ml L-1 , with increased growth thereafter; and the total soluble solids of pepper increased linearly with increasing concentration of biofertilizers.