The animal-drawn wheeled tool carriers were developed to carry out transportation and other agricultural operations by one single frame thus reducing the cost of machinery systems. They have not gained the expected popularity among a large majority of farmers because until recently they tried as alternative to traditional single-pourpose machinery system which did not present sufficient time saving advantage to justify heavy investments. The recent experiences at the International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), India and the Centre of Agricultural Research for the Semi-Arid Tropics, Petrolina,PE, Brazil (CPATSA) in the adoption of this type machinery system as an integrated component of improved farming systems has shown the... |