Spencer, D.    

Firstname:D. 
Surname:Spencer 
Email: 
Institute: 
Homepage: 
Found authors with very similar names. You can choose to merge the following authors with this author by clicking on the merge link.

29 publications (0 read)





Publications as Author



2002

The cassava transformation: Africa's best-kept secret, Nweke, F., Spencer, D. and Lynam, J.*, Michigan State University Press, ISBN 0-87013-602-X, 2002.
 

2000

Labour use and productivity in new fallow systems as alternatives to slash-and-burn agriculture in the derived savannas of Nigeria, Chianu, J., Spencer, D. and Atobatele, J., pages 429-438, Margraf Verlag, 2000.
 

1995

Future prospects for cassava root yield in sub Saharan Africa, Nweke, F. and Spencer, D., in: Outlook on Agriculture, volume 24, number 1, pages 35-42, 1995.
 
IITA and ILCA on-farm alley farming research: lessons for extension workers, Whittome, M. P., Spencer, D. and Bayliss-Smith, T., in: Alley farming research and development: proceedings of an international conference on alley farming, 14-18 September 1992, pages 423-435, International Institute of Tropical Agriculture (IITA), 1995.
 

1994

Economic analysis of cut-and-carry, and alley cropping systems of mulch production for plantains in south-eastern Nigeria, Ruhigwa, B. A., Gichuru, M., Spencer, D. and Swennen, R.+, in: Agroforestry Systems, volume 26, pages 131-138, ISSN 0167-4366, 1994.
 

1993

Measuring the sustainability and economic viability of tropical farming systems: a model from sub-Saharan Africa, Ehui, S. K. and Spencer, D., in: Agricultural Economics, volume 9, number 4, pages 279-296, ISSN 0169-5150, 1993. [DOI]
 
Collecting meaningful data on labour use in on-farm trials in sub-Saharan Africa, Spencer, D., in: Experimental Agriculture, volume 29, number 1, pages 39-46, ISSN 0014-4797, 1993.
 

1991

The technology adoption process in subsistence agriculture: the case of cassava in southwestern Nigeria, Polson, R. and Spencer, D., in: Agricultural Systems, volume 36, number 1, pages 65-78, ISSN 0308-521X, 1991.
 
Indices for measuring the sustainability and economic viability of farming systems: RCMP research monograph, No. 3, Ehui, S. K. and Spencer, D., RCMP Research monograph, No. 3, International Institute of Tropical Agriculture (IITA), 1991.
 
Farming systems research strategy for the development of inland valleys for increased food production in West Africa, Spencer, D., in: Agricultural Systems in Africa, volume 1, number 2, pages 5-14, ISSN 1061-8672, 1991.
 
Collecting meaningful data on labor use and farm size for economic analysis associated with on-farm trials in sub-Saharan African, Spencer, D., pages 53-59, International Institute of Tropical Agriculture (IITA), 1991.
 
Institutionalizing the farming systems perspective in multi-commodity research institute: the role of systems-based research groups, Spencer, D., in: Experimental Agriculture, volume 27, number 1, pages 1-9, ISSN 0014-4797, 1991.
 
Development of technologies for productive and sustainable agriculture for the humid and sub-humid tropics of Africa, Spencer, D. and Mulongoy, K., in: The role of biology in resolving the food crisis in Africa, edited by A.T. Ba and M. Ndoye. Proceedings, International Symposium, Jul 1989, Yamoussoukro, Cote d'Ivoire, pages 133-143, ICSU; UNDP; UNESCO, 1991.
 

1990

Economic analysis of soil erosion effects in alley cropping, no-till and bush fallow systems in southwestern Nigeria, Ehui, S. K., Kang, B. and Spencer, D., in: Agricultural Systems, volume 34, number 4, pages 349-368, ISSN 0308-521X, 1990.
 

1988

Cropping systems and agroeconomic performance of improved cassava in a humid forest ecosystem: RCMP Research monograph, No. 2, Nweke, F., Ezumah, H. C. and Spencer, D., RCMP Research monograph, No. 2, International Institute of Tropical Agriculture (IITA), 1988.
 
Performance of improved IITA cassava, Manihot esculenta Crantz, at farm level, Nweke, F., Ezumah, H. C. and Spencer, D., pages 83-88, International Institute of Tropical Agriculture (IITA), 1988.
 
Cropping systems and agronomic performance of improved cassava (Manihoti esculenta Crantz), in a humid forest ecosystem, Nweke, F., Ezumah, H. C. and Spencer, D., International Institute of Tropical Agriculture (IITA), 1988.
 
On-farm research: a necessary tool in the development of innovations, Mutsaers, H. J. W. and Spencer, D., in: Entwicklung und Landlicher Raum, volume 3, pages 88, 1988.
 

1986

Agricultural reseach : lessons of the past, strategies for the future, Spencer, D., pages 215-241, 1986.
 

Publications as Editor

1992

Nitrogen contribution of woody legumes in alley cropping systems, Kang, B. and Mulongoy, K., pages 367-375, John Willey & Sons; Sayce Publishing; international institute of Tropical Agricultue (IITA); AABNF, 1992.
 
Estimation of symbiotically fixed nitrogen using extended N difference methods, Hauser, S., pages 309-321, John Wiley & Sons; Sayce Publishing; International Institute of Tropical agriculture (IITA); AABNF, 1992.
 
Five years of research on improved fallow in the semi-arid highlands of Rwanda, Balasubramanian, V. and Sekayange, L., pages 405-422, John Wiley & Sons; Sayce Publishing; International Institute of Tropical Agriculture (IITA); AABNF, 1992.
 
Response of some tropical nitrogen-fixing woody legumes to drought and inoculation with mycorrhiza, Awotoye, O. O.*, Atayese, M. O.*, Osonubi, O.*, Mulongoy, K. and Okali, D. U. U., pages 67-77, John Wiley & Sons; Sayce Publishing; International Institute of Tropical Agriculture (IITA); AABNF, 1992.
 
Fitting soil-improving legumes into inland valley rice-based cropping systems in West Africa, Carsky, R. and Ajayi, E. O., pages 395, chapter 404, John Wiley & Sons; Sayce Publishing: International Institute of Tropical Agriculture (IITA); AABNF, 1992.
 
Effect of fertilizatin and Rhizobium inoculation on the growth of Leucaena and Gliricidia on an Alfisol in south-western Nigeria, Cobbina, J., Mulongoy, K. and Atta-Krah, A. N., pages 161-169, John Wiley & Sons; Sayce Publishing; international Institute of Tropical Agriculture (IITA); AABNF, 1992.
 
Early growth and symbiotic properties of three woody legumes grown on a sandy soil in south-western Nigeria, Mulongoy, K. and Owoaje, B. T., pages 139-146, John Wiley & Sons; Sayce Publishing; International Institute of Tropical Agriculture(IITA); AABNF, 1992.
 
Biological nitrogen fixation and sustainability of tropical agriculture, John Wiley & Sons; Sayce Publishing; International Institute of Tropical Agriculture(IITA); AABNF, ISBN 0-471-98560-3, 1992.
 
Early growth and nodulation in Leucaena and Gliricidia and the effects of pruning on biomass productivity, Ezenwa, I. V. and Atta-Krah, A. N., pages 171-178, John Wiley & Sons; Sayce Publishing; International Institute of Tropical Agriculture (IITA); AABNF, 1992.
 
An exploratory survey of soybean production in Ayepe, Nigeria, Baten, M. A., Agboola, A. A. and Mutsaers, H. J. W., pages 333-342, John Wiley; Sayce; International Institute of Tropical Agriculture (IITA); AABNF, 1992.