AVALIAÇÃO DE ALFACE AMERICANA SUBMETDIA A DOIS TIPOS DE TRATAMENTO: ADUBAÇÃO COM SILÍCIO E ADUBAÇÃO COM NPK NO SISTEMA DE GOTEJAMENTO

Abstract

Lettuce is one of the most cultivated and consumed vegetables in Brazil. Furthermore, for a lettuce to be assessed as having superior quality, the good formation of the plant and the absence of any type of damage are of fundamental importance and define the commercial value of the vegetable. The objective of this work was to evaluate the existence of differences in iceberg lettuce for commercial purposes under two types of treatments: fertilization using NPK and with 4 different doses of silicon (0g, 0.75g, 1.25g and 1.75g). This work was carried out in a bamboo greenhouse on the premises of the Instituto Federal Goiano Campus Urutaí, with a localized drip irrigation system and the plants were subjected to two types of fertilization: with NPK and with 4 different doses of silicon. The parameters evaluated were: plant wet mass, plant dry mass, root wet mass and root wet mass. The results obtained through Sisvar allowed us to show that, in relation to the wet mass of the plants, fertilization with NPK obtained the highest averages and for the fresh commercialization of the vegetable, it is characterized as the best fertilization. Regarding the dry mass of the plants, dry mass and wet mass of the roots, there was no significant difference between the treatments.