Biossólido de lodo agroindustrial no cultivo de eucalipto

Abstract

The generation of agro-industrial waste increases every day, resulting in greater concerns about the final destination of the materials. The objective of this work was to evaluate the growth response of two eucalyptus species with different dosages of slaughterhouse residue in comparison to mineral fertilization. The experiment was conducted in a greenhouse at the Federal University of Mato Grosso, Sinop-MT. It was used a completely randomized design, in a split-plot scheme with four replications. Treatments corresponding to a 2x5 factorial, two eucalyptus clones (E. urograndis - H13 and E. urocam - VM01) and five forms of fertilization (NPK dose and four biosolid - 0, 6, 12 and 24 t ha -1). Irrigation was performed throughout the experimental period with the addition of different volumes of water in the dish of each pot according to the needs of the plant. At the end of the experiment, shoot height, stem diameter, leaf area, leaf number, shoot dry mass, and root dry mass were evaluated. The clone Urocam VM01 overlapped the clone Urograndis H13 in the parameters height, stem diameter, aerial dry mass and root dry mass, where only for the last two, the doses were significant presenting higher averages for the biosolid fertilizers in the dose. 24.0 t ha compared to mineral fertilization. For leaf area and number of leaves, there was no significant difference between species and mineral fertilization presented higher results. In conclusion, it was observed that the application of different doses of biosolids in substitution of mineral fertilizer has potential for use in agriculture.