422 Modern Agricultural Reforms
Krishna A 1997. Participatory watershed development and soil conservation in Rajasthan, India, in
Krishna et al Reasons for Hope: Instructive Experiences in Rural Development, Kumarian Press, West
Hartford, CT, 255–272
Lund S and Fafchamps M 1997. Risk-sharing networks in rural Philippines, unpublished paper,
Department of Economics, Stanford University
Lundgren B O and Raintree J B 1982. Sustained agroforestry, in Nestel B (ed.) Agricultural Research for
Development: Potentials and Challenges in Asia, International Service for National Agricultural
Research, The Hague, 37–49
Mollison B 1990. Permaculture: A Practical Guide for a Sustainable Future, Island Press, Washington
Oka I N 1997. Integrated crop pest management with farmer participation in Indonesia, in Krishna et
al Reasons for Hope: Instructive Experiences in Rural Development, Kumarian Press, West Hartford,
CT, 184–199
Piper J K 1994. Neighborhood effects on growth, seed yield, and weed biomass for three perennial
grains in polyculture, Journal of Sustainable Agriculture 4(2), 11–31
Piper J K and Kulakow P A 1994. Seed yield and biomass allocation in sorghum bicolor and F1 and
backcross generations of S bicolor x S halepense hybrids, Canadian Journal of Botany 72(4), 468–
474
Postel S 1996. Dividing the water: Food security, ecosystem health, and the new politics of scarcity,
Worldwatch Paper no 132, Worldwatch Institute, Washington DC
Reij C, Scoones I, and Toulmin C, et al (eds) 1996. Sustaining the Soil: Indigenous Soil and Water Con-
servation in Africa, Earthscan Publications, London
Sanders J H 1997. Developing technology for agriculture in Sub-Saharan Africa: Evolution of ideas,
some critical questions, and future research, Discussion Paper, International Food Policy Research
Institute, Washington
Schlather K 1998. The dynamics and cycling of phosphorus in mulched and unmulched bean pro-
duction systems indigenous to the humid tropics of Central America, unpublished PhD thesis,
Cornell University, Ithaca, NY
Smil V 2000. Feeding the World: A Challenge for the Twenty-First Century, MIT Press, Cambridge,
MA
Somda Z C, Powell J M, Fernández-Rivera S and Reed J D 1970. Feed factors affecting nutrient excre-
tion by ruminants and the fate of nutrients when applied to soil in Powell J M, Fernández-Rivera
S, Williams T O and Renard C (eds) Livestock and Sustainable Nutrient Cycling in Mixed Farming
Systems of Sub-Saharan Africa, International Livestock Centre for Africa, Addis Ababa, 227–243
Steiner K G 1982. Intercropping in tropical smallholder agriculture with special reference to West
Africa, GTZ Publication no 137, Gesellschaft für Technische Zusammenarbeit, Eschborn
Tanner J, Holden S J, Winugroho M, Owen E and Gill M 1995. Feeding livestock for compost pro-
duction: A strategy for sustainable upland agriculture on Java in Powell J M, Fernández-Rivera S,
Williams T O and Renard C (eds) Livestock and Sustainable Nutrient Cycling in Mixed Farming
Systems of Sub-Saharan Africa, International Livestock Centre for Africa, Addis Ababa, 115–128
Uphoff N 1986. Improving International Irrigation Management with Farmer Participation: Getting the
Process Right, Westview Press, Boulder
Uphoff N 1996. Learning from Gal Oya: Possibilities for Participatory Development and Post-Newtonian
Social Science, Intermediate Technology Publications, London
Uphoff N 1996a. Collaborations as an alternative to projects: Cornell experience with university-
NGO-government networking, Agriculture and Human Values 13(2), 42–51
Van Berkum P and Sloger C 1983. Interaction of combined nitrogen with the expression of root-
associated nitrogenase activity in grasses and with the development of N 2 fixation in soy bean
(Glycine max L Mon), Plant Physiology 72(7), 41–745
Vandermeer J 1989. The Ecology of Intercropping, Cambridge University Press, Cambridge
Winrock International 1992. Assessment of Animal Agriculture in Sub-Saharan Africa, Winrock Inter-
national Institute for Agricultural Development, Morrilton, AR