PRODUÇÃO DE PIMENTÃO EM RESPOSTA À IRRIGAÇÃO, CONDICIONADORES DE SOLO E ESTERILIZAÇÃO

Abstract

The aim of this paper was to evaluate the response of sweet pepper, cultivar Casca Dura Ikeda, in function of irrigation levels, soil sterilization and addition of conditioners. The experiment was conducted in a greenhouse, in 8.0 liters pots, in double lines, in the 0.4 x 0.6 x 1.3 m spacing. The experimental design was in randomized blocks, with four replications in 2 x 5 split plots, being the plots two levels of irrigation (replacement of 75% and 100% of evapotranspiration), and the subplots five soils: soil not sterilized with vermiculite 30% v/v; and four soils inoculated with Meloidogyne sp., being no sterilized soil with hydrogel at 20 g pot-1; no sterilized soil without hydrogel; sterilized soil, with hydrogel at 20 g pot-1; sterilized soil, without hydrogel. The highest plant height and commercial productivity, on average 1086.1 kg ha 1, were observed in sterilized soils, with or without hydrogel. The highest pH the fruit was provenient of the no sterilized soil with hydrogel at 20 g pot-1. In sterilized soil with hydrogel at 20 g pot-1, greater roots dry mass was obtained. Due to high water retention in the soil, there was no significant effect of irrigation levels on the parameters evaluated.