摘要:Drop-by-drop irrigation is an optimal technique of localized watering which permits the normal development of a plant with minimal water necessary for its good growth. Its aim is to minimize water wastage and promote agriculture in arid zones. The present study was on a drop-by-drop irrigation device powered by solar energy which provided its own electrical energy. This system was experimented in the culture of Vernonia amygdalina (Delile) also known as “Ndolé” in Cameroon. This was in a bit to contribute to development and in the promotion of “clean and new generation” agriculture.