Evaluation of a precision seed planter

Abstract

A Magitum 2800 seeder manufactured by Jumil was examined in laboratory on its commercial form and with modifications on its seed conductor tube. Three seed-drop heights (400, 300 e 200 mm), two seed delivery position (longitudinal and lateral) and two tube shapes (straight and curve) were considered. Each of these combinations was evaluated at three different forward speeds (5.0; 7.0 and 9.3 km/h) with a fixed delivery rate of eight corn seeds per meter. There was practically no difference between the performance of the seeder with modifications and that of the commercial form (seed-drop height of 400 mm, longitudinal delivery and straight tube). In any combination, higher increase in the forward speed reduced the performance of the seeder tested.