UTILIZAÇÃO DE POLÍMERO HIDRORETENTOR E LÂMINAS DE IRRIGAÇÃO PARA RACIONALIZAÇÃO DE RECURSOS HÍDRICOS NO CULTIVO DO PIMENTÃO

Abstract

It evaluated the influence of different doses of water-retaining polymer as a function of different irrigation depths in sweet pepper cultivation. The experiment was carried out in a greenhouse at Instituto Federal Goiano, in Urutaí, Goiás. The design was in randomized blocks, in a 4 × 4 factorial scheme with four replications, with four irrigation depths (50, 75, 100 and 125%) obtained daily next to the Class A tank and four doses of hydrogel solution (0, 200, 400, 600 ml). The pepper seedlings were purchased from a registered commercial nursery. The hydrogel was diluted 50g for every 10 liters of water being supplied in the transplant pit. The variables were evaluated: number of leaves (NF), plant height (HP), bark thickness (EC), total production (TP), fruit length (CF), fruit diameter (DF), average weight of fruits (PMF) and number of commercial fruits (NFC). It was concluded that the use of water-retaining solution in sweet pepper, cultivar Magali R, significantly interfered in the increase of the average weight of the fruits, with the recommended dosage corresponding to 400mL of solution.