Over 45 years of national and international experience in agricultural R&D and feasibility study, project design, management and evaluation, and training in Asia, Africa and the Caribbean. Strong professional interest and wide experience in sustainable and conservation agriculture, soil quality and environmental health, integrated low- and high-input farming systems, integrated crop and resource management including nutrient x pests/disease interactions, environmental effects of farming systems intensification, and agro-biodiversity as part of rural development and livelihood improvement. Have a unique combination of strategic, applied, and adaptive/participatory research; technology development and promotion; teaching/training/thesis guidance and science communication; committed to simplify, distill, and communicate scientific and technical knowledge to end-users.