Drought stress, potassium (K) and nitrogen (N) deficiencies are major constraints to East African highland banana (Musa spp. AAA-EA; hereafter referred to as ‘highland banana’), a primary staple food crop for over 30 million people in East Africa. This study explored the main and interactive effects of water, K and N on growth and yield of highland banana. The aim was to build a crop growth model geared towards a decision support tool for managing the crop water and nutrient requirements across agro-ecological zones. Individual plant data...