Operational Performance of Bean Seeder -Tractor Set in Tillage Systems and Speed Steps
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Abstract
The objective of this work was to evaluate the operational performance of the tractor-bean seeder set considering two tillage systems and two speed steps. The testing was conducted in the experimental Agronomy-Airport Area of the Federal University of Viçosa, located in Viçosa-MG. Two land cultivation systems were introduced: conventional and minimum into a subdivided plots experimental design with two tractor working gears and four replications, totaling 16 experimental plots. The emergence speed index of the plants, the fuel consumption per hour and hectare, force and traction power and consumed energy in MJ·ha-1, in the seeding operation were determined. Processing the results by using an analysis of variance in the software Statistics SPSS 21, did not report significant differences in the emergence speed index of the plants by tillage system and allowed to recommend the use of B1 gear for offering lower power and energy consumption (MJ·ha-1). Fuel consumption per hectare, force and traction power and energy consumption (MJ·ha-1) significantly differed in the two tillage systems, being lower for minimum tillage. The conventional tillage system was the largest consumer of energy.
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