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My research is driven by a passion for advancing sustainable agricultural systems that enhance food security, environmental sustainability, and resilient livelihoods. I have a particular interest in understanding the linkages between belowground carbon (C) and nitrogen (N) cycling, soil health, and ecosystem functioning, and how these processes influence crop productivity, greenhouse gas emissions, and the long-term sustainability of agricultural systems. My work explores the application of agro-ecological principles to develop climate-smart and conservation agriculture practices that improve resource-use efficiency, build resilience to climate variability and change, and sustain food production under diminishing natural resources. My broader research interests encompass sustainable crop production, soil fertility and integrated soil fertility management, cropping systems, crop-livestock integration, conservation agriculture, climate change adaptation and mitigation, and the conservation and utilization of indigenous and underutilized crops for improved food and nutrition security. I am equally committed to research on agricultural extension and advisory services, technology adoption and dissemination, agricultural education, agribusiness and value chain development, food systems transformation, and the inclusion of women and youth in agricultural innovation. Through interdisciplinary, participatory, and evidence-based research, I seek to generate practical solutions that strengthen resilient farming systems, inform policy, promote sustainable natural resource management, and improve the livelihoods of smallholder farming communities across Africa.
Dr. Abuga is a public/environmental health expert with vast teaching and research experience. He has previously conducted research on the epidemiology and healthcare access/utility for children with neurological impairments and disability in selected domains. He also has applied the Global Burden of Disease approaches to model the overall local burden of these disabilities in Kenya. Currently he is working on projects focussing on (i) environmental health, specifically the intersectionality between household energy use, air pollution, climate change and health; (ii) Cancer epidemiology and health-system preparedness in South-Western Kenya, and (iii) health systems strengthening for identification and treatment of communication disorders among children and adults.
