Subject(s): farmers experiments and participatory technology development -- Experiences of non governmental organisations (NGOs) : People centred agricultural improvement, promoting tree growth in Africa, NGOs and improvement of peasant agriculture, searching for alternative systems of agricultural production, participatory research with community based farmers, Andean agriculture and peasant knowledge, tree planting for increased fuel wood supply for rural households in Kenya, self experimenting village groups, farmer based research and extension in zimbabwe, fish poison and culturally significant pest control -- Experience of natural and international research and extension organisations : Learning from farmer innovations and innovator in Bangladesh, problem census- farmer centred problem identification, farmer's participation and extension, community development trust fund, technology for grain storage, farmer to farmer workshops on smallholders dairy cow raising , farmers experience with a new crop, farmer-based methods- farmer's diagrammes for improving methods of experimental design in integrated farming system, small farmers in agricultural research - farmers participation in potato germplasm evaluation, farmers as experimenters -- Agricultural innovations -- Alternative agriculture -- Agricultural -- Sustainable agriculture -- Developing countries