Agricultural engineer, 1970. Doctor of Philosophy, Swedish University of Agricultural Sciences.
Researcher Southwest University, Uppsala, Sweden, 1970-1976. Assistant professor agricultural science University Uppsala, 1976-1980, professor, since 1980, head of department, since 1983, dean of faculty, 1992-1999. Managing director Swedish Academy Forestry and Agril.
Deputy director Swedish Institute of Agrening, 1989-1992, chairman since 1993.
Member CIGR, EurAgEng.
Married Eve Olofsson, June 17, 1969. Children: Karin, Hakan.