Dr Angus retired as a CSIRO Chief Research Scientist in 2010 after working in the Plant Industry and Land Divisions since 1973.  He also worked in visiting scientist positions at the International Rice Research Institute and the Swedish University of Agricultural Sciences. He retains research interests at CSIRO, CSU and the Graham Centre, and operates a crop and livestock farm at Stockinbingal.

His research career involved experimental and simulation studies about phasic development and the nitrogen and water productivity of dryland crops, the effects of crop and pasture sequences and the agronomy of irrigated rice.

His research training was in crop physiology at the University of Melbourne. During his career he was President of Agronomy Australia from 2008 to 2010, co-president of the Asian Crop Science Society and committee member of the fifth International Crop Science Congress and the seventh International Nitrogen Initiative Conference.

• Fellow of the Australian Institute of Agricultural Science and Technology. Medal of Australian Agriculture 2016
• Fellow, Australian Society of Agronomy and American Society of Agronomy
• Member of the editorial board of Field Crops Research. Past chair of the advisory board of Australian Journal of Agricultural Research