Beyond fertilizer for closing yield gaps in sub-Saharan Africa

Affiliations

• ¹ International Crops Research Institute for the Semi-Arid Tropics, Addis Ababa, Ethiopia. a.vanrooyen@cgiar.org.
• ² UniSA Business School, University of South Australia, Adelaide, South Australia, Australia.
• ³ Fenner School of Environment & Society, Australian National University, Canberra, Australian Capital Territory, Australia.