DESEMPENHO OPERACIONAL DO CONJUNTO TRATOR SEMEADORA ADUBADORA DE FLUXO CONTÍNUO EM FUNÇÃO DA PRESSÃO DE INFLAÇÃO DOS RODADOS E VELOCIDADE DE DESLOCAMENTO

Abstract

Sowing process is a considerable steps that need attention during the crop planting. Factors as tire pressure or sower displacement speed, can directly interfere in energetic and operational performance of the entire tractor-seeder , initial development and crop implementation . The aim o of this study was to evaluate the energetic and operational performance of the entire tractorseeder in function of tire inflation pressure and tractor displacement speed. The study was conducted at Federal University of Ceará in Fortaleza (CE), in the area of the Accident Investigation Laboratory in Agricultural Machinery (LIMA). The experiment was design in randomized block in a factorial 2 x 3, with four replications and two tire inflation pressures of sower wheelsets (138 kPa and 165 kPa) and three tractor displacement speed (3.9 km h-1, 4, 9 km h-1, 7.0 Km h-1). The inflation pressure of 138 kPa had lower fuel consumption and reduced wheel slip. The theoretical speed of 7.0 km h-1 allowed greater displacement speed and higher to effective and operational field capacity.