Development of a rolling punch planter for stony soil conditions
The use of manual planters has been the only solution for farmers' problems in some areas in Southern Brazil where stony soils predominate in steep slopes. Farmers have planted corn and dry beans in these areas since the beginning of this century, using the same kind of equipment. The planters are hand-operated, resulting in limited field capacity and ergonomic problems. A machine using a similar process of dropping the seeds into the holes was designed and constructed. It used 12 spades radially arranged with cam activated doors and a plate seed meter. Preliminary evaluation showed important improvement in the planting operation with reduction in human effort, more accurate stand and high field capacity.