Sistema agroflorestal com teca (Tectona grandis L.f.) no município de Figueirópolis D'Oeste, estado de Mato Grosso

Abstract

The aim of this study was to evaluate the growth of seminals and clonals plants of Tectona grandis L.f. in different types of tillage, monoculture and taungya system with maize and perform an economic analysis of both systems. The experiment was conducted in the municipality of Figueirópolis D'Oeste, Mato Grosso, using a randomized block design in a split plot design, with 12 treatments and 4 replications. In chapter 1 were assessed total height, diameter at 5 cm above ground level, number of leaves, number of shoots and survival plants of teak to 12 months after planting of teak seedlings. Data were subjected to analysis of variance and means were compared by Tukey test, p <0,05. In the second chapter were collected the values of costs, revenues and total time consumed in the activities of deployment, maintenance, harvesting and ensiling of corn for the planning horizon of 14 months. The better growth in height and diameter of clonals and seminal plants of teak occurred in conventional tillage, showing superior performance in monoculture teak (no corn) compared with the taungya system (presence of corn). The recipe for corn silage provided a reduction in the total cost of installation and conducting treatments taungya system of 22.55% on average. The taungya system with soil preparation in pits and clonal plants of teak showed higher net present value per hectare.