ANÁLISE FINANCEIRA DE HÍBRIDO DE ABÓBORA IRRIGADA SOB DENSIDADES DE PLANTIO E ADUBAÇÃO DE COBERTURA

Abstract

er fertilization. Advisor: Dr. Leandro Caixeta Salomão. The crop density, along with the fertilization method, are factors that interfere directly in the fruit yield and quality of irrigated pumpkin. In this sense, this study aimed to carry out a financial analysis and evaluate the effect of the crop density and the cover fertilization method on the irrigated hybrid pumpkin cultivation. This experiment was carried out in the experimental area of the Goiano Federal Institute, Campus Ceres, Goiás State, Brazil, from May to August, 2018. A randomized block design with four replicates was used in a 4x2 factorial scheme with four crop densities (1667, 3333, 5000, and 6667 plants ha-1 ) and two cover fertilization method (total application and split application in twice). Morphological characteristics, number of leaves, main branch length, number of lateral branches, main branch diameter, leaf equatorial diameter, leaf longitudinal diameter, fresh mass and dry mass of aerial part, as well as the productive characteristics as number of fruits per plant, fruit equatorial diameter, fruit longitudinal diameter, fresh mass and dry mass of fruit, fruit volume, pulp thickness, peduncle diameter, average fruit weight, and total yield were evaluated. Results were subjected to analysis of variance (FTest) at 5% significance level, and regression to the crop densities was carried out in the characteristics that showed significance. There was no significant influence at the preestablished level on fertilization methods. Among the variables analyzed, no interaction was found between crop density and fertilization methods. The highest yields were found at higher crop densities as the density of 6667 plants ha-1 showing yield of 20.17% higher than the density of 5000 plants ha-1 , that is, 50.5% more in relation to the density of 3333 xiv plants ha-1 , and 101.3% in relation to the density of 1667 plants ha-1 . Regarding the financial analysis, the density of 6667 plants ha-1 showed 59.1% net income higher than the density of 5000 plants ha-1 and 234% more in relation to the density of 3333 plants ha-1 . No net income was obtained at the density of 1667 plants ha-1