Cafeeiro arábica sob diferentes condições de suprimento hídrico e nutricional, na região Centro-Norte de Mato Grosso

Abstract

Coffee growing is an important activity for the Brazilian economy, moving about 20 billion reais and generating approximately 8 million jobs. The adoption of irrigation in new producing regions, as well as the correction of soil acidity associated with adequate fertilization, is essential to guarantee a good agronomic performance of the coffee tree, making fertilizers available gradually via irrigation water, carrying out the installment of the fertilizer dose to be applied, enables a more efficient supply of nutrients to the plant. The objective of the present study is to describe the vegetative behavior of the The present study aims to describe the vegetative behavior of the Acauã Novo cultivar in the central north region of the state of Mato Grosso, under conditions of cultivation with irrigation and without irrigation, with fertilization applied in a single dose and in installments, generating information that can guide the most appropriate management for this crop in this region. The experiment was accomplished in the Sinop city, on the Federal University of Mato Grosso. The evaluated plants are Coffea arabica L., cultivar Acauã Novo, 48 months old. The design was in randomized blocks with plots in bands, having in each band two experimental plots related to two fertilization managements, being: single dose and split. In the bands, two types of cultivation management: without irrigation and with irrigation. To characterize the effects of treatments, vegetative characteristics was analyzed: diameter and height of the orthotropic branch; number of leaflets and internodes of plagiotropic branches. It was observed that irrigation provided a greater increase in all evaluated characteristics and that fertilization provided a greater increase only in the number of internodes. It was concluded that irrigation and split fertilization should be adopted in the cultivation of Arabica coffee, cultivar Acauã Novo, produced in the North Central region of Mato Grosso state.