Challenge Agriculture is specialized in Tensiometry. Manufacturing, equiping, repairing, training, servicing irrigators, advisors, researchers. Tensiometry is a powerful technique, unabling : observe soils behaving, measure water availability, monitor irrigation in all situations crop / soil / climate / irrigation equipment. With results on profile capilarity performance, soil conservation, saving water. A performing irrigation, like any agricultural technique, combines a good advise thanks to experience, a good equipment thanks to WATERMARK ® and our dedicated plant, a good use thanks to scientific publications, education and field service.