Fertilização de café em um sistema agroflorestal no cerrado mineiro (Monte Carmelo, MG)

Abstract

Shaded coffee has been little used in the region of Minas Gerais and in the rest of Brazil, as it is a little stimulated technology and mainly due to lack of knowledge of its advantages by coffee producers. Coffee produced in Agroforestry System has several advantages, such as high quality of grains produced, but has reduced productivity, so this study aimed to evaluate the effect of different nitrogen contents together with organomineral fertilizer on vegetative parameters at different times and coffee cultivars. The experiment was installed in a completely randomized design (DIC) in a 4 X 5 factorial scheme, with 4 coffee cultivars (Catuaí, IBC, Mundo Novo and Topázio) for 4 doses of nitrogen (10, 20, 30 and 40 g/plant. N) and a witness, with zero dose, in two repetitions. The characteristics of plant height, number of plagiotropic branches, branch length and crown diameter were evaluated. Through the study it was possible to conclude that from the variables evaluated, the cultivar Mundo Novo presented higher values in all parameters evaluated, both in relation to the doses and months under study, when compared to the other cultivars and the results in relation to the doses presented a non-linearity in the obtained data.