This work presents the development and field tests of a modular agricultural implement. A Modular Design Product methodology was used for the implement development, and the main objective was the development of a modular system to improve the actual situation of mechanization on small countryside properties. The development focus was kept on some implements for conservative cultivation. For its modularity, the implement developed attained the functions of seeding - fertilizing, scarification and furrowing the soil. For the function of seeding-fertilizing can be used either narrow chisels or double disc, for the furrowing function a specific tool can be used. The main tubular chassis allowed an easily interchangeability between both functions (seed-season and furrow-season). The results for Typical Oxisoils with humidity around of 20.5% and dry mass of 11.5 t ha-1 for the aspect of seed-fertilize with double chisels were satisfactory, in relation with parameters like road skidding traction, deep regularity distribution, coverage and longitudinal distribution of the seeds and emerging plants.
modular seeder-fertilizer; direct seed; field test
