Fertirrigação em três variedades de laranja no sudoeste de Minas Gerais

Abstract

The study aimed to evaluate the effect of fertigation reduced in relation to the contents of N and K compared with conventional fertilization on fruit quality of three varieties of orange. Three treatments were evaluated, and the treatment 1 to conventional fertilization recommended for the culture of orange; 2 treatment, the reduction of 30% in the N and K2O contents compared to conventional fertilization in fertigation system and treatment 3, 40% reduction in the levels of N and K2O compared to conventional fertilization in fertigation system. For fruit characteristics were evaluated weight and diameter of the fruits, juice characteristics were evaluated yield, titratable acidity, soluble solids and vitamin C. fertigation reduces from 30% to 40% the recommended dose of N and K2O without prejudice the final quality of the fruit, with an interesting system for weight, fruit diameter, soluble solids and vitamin C, as for the juice yield the best system is conventional.