He has extended his valuable service in field of Sweet potato marketing and estimation of post-harvest losses in Kenya, soybean and sunflower, several years and has been a recipient of many award and grants. His international experience includes various programs, contributions and participation in different countries for diverse fields of study.His research interests reflect in his wide range of publications in various national and international journals.

Farmer group marketing, margins, marketing, post-harvest losses, sweet

potato, whole sale marketing