Cultivo da alface ciclo completo e baby leaf cultivada com diferentes lâminas de água e doses de polímero hidrorretentor

Abstract

Due to the potential for market growth, baby leaf vegetables can stimulate the consumption of vegetables by the population. Thus, the objective of this work was to evaluate different doses of water-retaining polymer combined with irrigation depths in the cultivation of 'jade' lettuce harvested in the baby leaf stage and in full cycle. Therefore, this work was divided into two chapters. Two experiments were carried out, one for the cultivation of lettuce as a baby leaf and the other with the complete cycle. The full cycle lettuce transplant was carried out on May 05, 2021 and the harvest was carried out on August 02, 2021, for the cultivation of baby leaf vegetables, the transplant was carried out on July 24, 2021 and its harvest on September 03. The experimental design was in a 3x2 factorial scheme, with three water depths (50%, 75% and 100% Eto) and two hydrogel doses (40 and 60 g m²) with 4 replications. The variables evaluated were: number of leaves, shoot and root length (cm), plant fresh mass (mg), plant dry mass (mg). For baby leaf cultivation, the best results were obtained when using a water depth of 75% of Eto (reference evapotranspiration). Regarding doses, the best results were obtained when the water-retaining polymer was used at a dose of 60 g m². For the second chapter in the cultivation of jade lettuce under Dourados-MS conditions in dystroferric red latosol, it is recommended to use 60 g m² of water-retaining polymer and water depth with 75% of Eto in irrigation.