References
- Baanante , C. A. , Bumb , B. L. and Thompson , T. P. 1989 . The Benefits of Fertilizer Use in Developing Countries , Muscle Shoals, Alabama , , USA : IFDC . Paper Series No. P–18
- Blackie , M. J. Maize productivity for the 21st century: the African challenge . Proc. Fourth Eastern and Southern Africa Regional Maize Conference . Edited by: Jewell , D. C. , Waddington , S. R. , Ranson , J. K. and Pixley , K. V. pp. 11 – 22 . Mexico City , Mexico : CIMMYT . Harare, Zimbabwe, 28 March-1 April, 1994
- Bongaarts , J. Global and Regional Population Projections to 2025 . Paper presented at the IFPRI Round Table on Population and Food in the Early 21st Century . pp. 14 – 16 . Washington, D.C. , , USA February
- Borlaug , N. E. and Dowswell , C. R. 1993 . Fertilizer: To nourish infertile soil that feeds a fertile population that crowds a fragile world . Fertilizer News , 387 : 11 – 20 .
- Breman , H. 1995 . Opportunities and Constraints for Sustainable Development in Semi-Arid Africa , Maastricht , , The Netherlands : The United Nations University, Institute for New Technologies (UNU/INTECH) . Working Paper No. 18
- Brown , L. R. and Kane , H. 1994 . Full House , New York , , USA : W.W. Norton .
- Bumb , B. L. 1994 . Global Fertilizer Perspective, 1980–2000: The Challenges in Structural Transformation , Muscle Shoals, Alabama , , USA : International Fertilizer Development Center .
- Bumb , B. L. and Baanante , C. A. The Role of Fertilizer in Sustaining Food Security and Protecting the Environment to 2020 . Food, Agriculture, and the Environment Discussion Paper 17 . Washington, D.C. , , USA : International Food Policy Research Institute .
- Bumb , B. L. and Baanante , C. A. 1996b . World Trends in Fertilizer Use and Projections to 2020 , Washington, D.C. , , USA : International Food Policy and Research Institute . Brief 38, Paper 1
- Easterbrook , G. 1997 . Forgotten benefactor of humanity . The Atlantic Monthly , : 74 – 82 . January
- Engelstad , O. P. and Hellums , D. T. 1993 . Water Solubility of Phosphate Fertilizers: Agronomic Aspects-A Literature Review , Muscle Shoals, Alabama , , USA : International Fertilizer Development Center . Paper 17
- Food and Agriculture Organization (FAO) . 1996a . 19th Regional Conference for Africa. World Food Summit: Policy Statement and Plan of Action , Rome, Italy : FAO .
- Food and Agriculture Organization (FAO) . 1996b . Production data diskette , Rome, Italy : FAO .
- Gerner , H. and Harris , G. 1993 . “ The use and supply of fertilizers in sub-Saharan Africa ” . In The Role of Plant Nutrients for Sustainable Food Crop Production in Sub-Saharan Africa , Edited by: Van Reuler , H. and Prins , W. H. 107 – 125 . Leidschendam , , The Netherlands : VKP .
- Hammond , L. L. , Chien , S. H. and Mokwunye , A. U. 1986 . Agronomic value of unacidulated and partially acidulated phosphate rock indigenous to the tropics . Advances in Agronomy , 40 : 89 – 140 .
- Harris , J. M. 1996 . World agricultural futures: Regional sustainability and ecological limits . Ecological Economics , 17 : 95 – 115 .
- Hazell , P. B.R. 1994 . Prospects for a Well-Fed World , Washington, D.C. , , USA : International Food Policy Research Institute (Draft) .
- Hitzhusen , F. J. 1993 . Land degradation and sustainability of agricultural growth: Some economic concepts and evidence from selected developing countries . Agriculture, Ecosystems and Environment , 46 : 69 – 79 .
- International Fertilizer Association (IFA) . 1995 . Fertilizer data diskette , Paris, France : IFA .
- International Fertilizer Development Center (IFDC) . 1996 . Restoring and Maintaining the Productivity of West African Soils: Key to Sustainable Development , Muscle Shoals, Alabama , , USA : International Fertilizer Development Center . Miscellaneous Fertilizer Studies No. 14
- International Food Policy Research Institute (IFPRI) . 1995 . A 2020 Vision for Food, Agriculture, and the Environment: The Vision, Challenge, and Recommended Action , Washington, D.C. , , USA : International Food Policy Research Institute .
- International Fund for Agricultural Development (IFAD) . 1993 . The State of World Rural Poverty, a Profile of Africa , Rome, Italy : International Fund for Agricultural Development .
- Larson , B. 1993 . Fertilizers to Support Agricultural Development in Sub-Saharan Africa: What Is Needed and Why , Washington, D.C. , , USA : Winrock International . Center for Economic Policy Studies Discussion Paper No. 13
- Malthus , T. R. 1798 . Essays on the Principle of Population , London , , UK : Oxford University Press .
- Mellor , J. W. 1988 . The intertwining of environmental problems and poverty . Environment , 309 : 8 – 13 . 28 29
- Paddock , W. and Paddock , P. 1967 . Famine, 1975 , Boston, Massachusetts , , USA : Little, Brown and Co .
- Pinstrup-Andersen , P. 1993 . Future perspectives on food supply in developing countries . Outlook on Agriculture , 224 : 225 – 232 .
- Pinstrup-Andersen , P. and Pandya-Lorch , R. 1994 . Alleviating Poverty, Intensifying Agriculture, and Effectively Managing Natural Resources , Washington, D.C. , , USA : International Food Policy Research Institute . Food, Agriculture and the Environment Discussion. Paper 1
- Ponting , C. 1990 . Historical perspectives on sustainable development . Environment , 329 : 4 – 9 . 31 – 33 .
- Population Reference Bureau (PRB) . 1995 . World Population Data Sheet , Washington, D.C. , , USA : Population Reference Bureau .
- Pouzet , D. 1991 . “ Profitability of fertilizer use options in Ghana ” . In Fertilizer Use at the Village Level: Constraints and Impacts , 45 – 47 . Lomé , Togo : International Fertilizer Development Center . Summary Proceedings of Workshop
- Quinones , M. A. , Borlaug , N. E. and Dowswell , C. R. Fertilizer-based green revolution for Africa . Paper presented at the American Agronomy Society Meeting . Indianapolis, Indiana , , USA November 3–8
- Rosegrant , M. W. , Agcaoili-Sombilla , M. and Perez , N. D. 1995 . Global Food Projections to 2020: Implications for Investment , Washington, D.C. , , USA : International Food Policy Research Institute . Food, Agriculture, and the Environment Discussion Paper 5
- Schultz , J. J. , Gregory , D. I. and Engelstad , O. P. 1993 . Phosphate Fertilizers and the Environment-A Discussion Paper , Muscle Shoals, Alabama , , USA : International Fertilizer Development Center . Paper 16
- Seckler , D. 1994 . Trends in World Food Needs: Toward Zero Growth in the 21st Century , Arlington, Virginia , , USA : Winrock International Institute for Agricultural Development . Center for Economic Policy Studies Discussion Paper No. 18
- Smaling , E. M.A. 1993 . “ Soil nutrient depletion in sub-Saharan Africa ” . In The Role of Plant Nutrients for Sustainable Food Crop Production in Sub-Saharan Africa , Edited by: Van Reuler , H. and Prins , W. H. Leidschendam, The Netherlands : VKP .
- Smaling , E. M.A. 1995 . “ The balance may look fine when there is nothing to mine: Nutrient stocks and flows in West African soils ” . In Use of Phosphate Rock for Sustainable Agriculture in West Africa , Edited by: Gerner , H. and Mokwunye , A. U. 10 – 20 . Muscle Shoals, Alabama , , USA : International Fertilizer Development Center .
- Speth , J. G. 1993 . “ Towards Sustainable Food Security ” . In Sir John Crawford Memorial Lecture to the Consultative Group on International Agricultural Research 25 October 1993
- Stoorvogel , J. J. and Smaling , E. M.A. 1990 . Assessment of Soil Nutrient Depletion in Sub-Saharan Africa, 1983–2000 , The Netherlands : Winand Staring Centre for Integrated Land, Soil and Water Research . Report 28, Wageningen
- United Nations (UN) . 1992 . Long-Range World Population Projections: Two Centuries of Population Growth, 1950–2150 , New York , , USA : United Nations .
- Vaidyanathan , A. 1993 . Fertilizers in Indian agriculture , Edited by: Venketaraman , L. S. Bangalore , , India : Institute for Social and Economic Change . Memorial Lecture
- Van der Pol , F. 1993 . “ Analysis and evaluation of options for sustainable agriculture, with special reference to southern Mali ” . In The Role of Plant Nutrients for Sustainable Food Crop Production in Sub-Saharan Africa , Edited by: van Reuler , H. and Prins , W. H. 69 – 88 . Leidschendam , , The Netherlands : VKP .
- Van Kauwenbergh , S. J. 1995 . “ Overview of the global phosphate rock production situation ” . In Direct Application of Phosphate Rock and Appropriate Technology Fertilizers in Asia-What Hinders Acceptance and Growth , Edited by: Van Kauwenbergh , S. J. and Hellums , D. T. 15 – 28 . Kandy , , Sri Lanka : Workshop IFS and IFDC . Feb. 20–25
- Reuler , Van H. 1996 . Nutrient Management Over Extended Cropping Periods in the Shifting Cultivation System of South-West Cote d' Ivoire , Ph. D. Thesis Wageningen , , The Netherlands : Agricultural University .
- Vlek , P. L.G. 1993 . “ Strategies for sustaining agriculture in sub-Saharan Africa: The fertilizer technology issue ” . In Technologies for Sustainable Agriculture in the Tropics , Edited by: Ragland , J. and Lal , R. 265 – 277 . Madison, Wisconsin , , USA : American Society of Agronomy, Crop Science Society of America, Soil Science Society of America . ASA Special Publication 56
- World Bank . 1992 . World Development Report, 1992: Development and the Environment , Washington, D.C. , , USA : World Bank .
- World Commission on Environment and Development (WCED) . 1987 . Our Common Future , Geneva, Switzerland : World Commission on Environment and Development .
- Zaman , M. S. 1991 . “ Famine-causes and health consequences ” . In The Challenge of African Disasters , 77 – 107 . New York , , USA : WHO and UNITAR, United Nations .