Cultivo de pimenta malagueta sob irrigação com águas salinas e doses de cama de aviário.

Abstract

Peppers are cultivated in many Brazilian states, standing out among the most widely used and widely consumed spice species. The objective of this study was to evaluate the development of chilli pepper (Capsicum frutescens) in response to interaction between litter levels and salinity levels of irrigation water. The experiment was conducted in a greenhouse at the Federal University of Campina Grande in Pombal-PB. The experimental design was a randomized complete block (DBC), under a 5 x 4 factorial scheme, related to five levels of electrical conductivity of the CEa irrigation water (S1 = 0.3, S2 = 0.9, S3 = 1.5; S4 = 2.1 and S5 = 2.7 dS m-1), combined with four doses of fertilization (75%, 100%, 125%, 150% litter bed). Based on the stages of development of the crop, the growth characteristics of the pepper were evaluated at 30 and 80 days after transplanting (DAT), obtaining the following variables: plant height (AP), stem diameter (DC), (FFPA), dry shoot biomass (FSPA) and physiological variables: photosynthesis (A), intercellular CO2 concentration (Ci), transpiration (E), stomatal conductance (gs ). The results showed that the high values of the salinity of the irrigation water interfered negatively on the studied variables, being that the supplementation of the soil with organic matter attenuated the effect of the salinization on the number of leaves and diameter of the stem with 30 and 80 days After transplanting.