Background
Pettersson, Jan was born on June 22, 1940 in Sundsvall, Sweden.
Pettersson, Jan was born on June 22, 1940 in Sundsvall, Sweden.
Degree in agriculture, SLU, Uppsala, 1971.
Professor SLU, Uppsala, 1974—2004. Researcher SLU, Uppsala.
Member of Royal Academy of Agriculture and Forestry.