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Characterisation of farming systems in southern Rwanda

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par Alain Kalisa
Université nationale du Rwanda - ingenieur Agronome (bachelor degree) 2007
Dans la categorie: Sciences

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The main purpose of this work was to analyze the functioning of different farming systems by establishing their major characteristics and estimating the level of nutrients at farm and plot scales in Shanga taken as representative site in plateau central agro-ecological zone. In this region, priority is given to staple and cash crops. The most prevailing farming systems are mixed crop and livestock production systems, 54% of surveyed farmers have at least one goat at home. During this study, three types of farms were identified based on their socio-economic conditions, namely the well-off, middle and poor farmers.

Hypotheses formulated have been successfully tested. The diversity of farms and fields in smallholder farming systems exist due to the several factors, namely: (i) socio-economical factors; and (ii) management factors. Plots belonging to the same farm are managed differently. Plots near homestead where farmers allocate more nutrients are more fertile than those located far away and receiving little fertilizers. Also other factors such as labour are also limiting depending on the family size and wealth. Large differences in nutrient content in plot's soils on different farms are linked to resource endowment. Fertilizing farm fields far away from home requires labour and much physical efforts.

Based on the results of our study, the following recommendations can be made:

- Simple technologies that do not require lot of investment such as agroforestry practices, rotation systems including legume crops should be promoted to increase soil fertility on poor farms and training of farmers for use of these technologies should be promoted.

- Crop production level of farms belonging to different wealth categories should be

estimated. In order to evaluate average income of these farms and therefore

scenario for improvements can be formulated

- The framework used to characterize farming system combines both biophysical and socio-economical aspects and allow a comprehensive understanding of the functioning of a farm. It should be recommended for other areas of Rwanda so that options for improving productivity on an individual category of farms can be then designed.


Books and journals

Graves Anil, Matthews Robin and Waldi Kevin e, 2004. Low external input technologies for livelihood improvement in subsistence agriculture. Agriculture, Ecosystems and Environment 116. Bedfordshire, UK

Rayar Antony Joseph, 2000.Sustainable Agriculture in Sub-Sahara Africa, The role of soil productivity. Chennai India

Cairns M. and Garrity,1999,Improving shifting cultivation in southeast Asia by building on indigenous fallow management strategies. Agroforestry System 47,37-48. Slash and Burn, Swidden

Crowley, E.L., Carter, S.E., 2000.Agrarian change and the changing relationships between toil and in Maragoli, western Kenya (1900-1994).Hum.Ecol.28, 383-414.

Deckers, J., 2002. A system approach to target balanced nutrient management in soilscapes of sub-Sahara Africa In: Vanlauwe, B., Diels, J., Sangiga, N, Merckx, R. (eds.), integrated plant nutrient management in sub-Sahara Africa. From concepts to practice. CAB International, Wallingford, UK pp 47-61.

Djimde, M., ed. 1988. Potentiel agroforestier dans les systèmes d'utilisation des sols des hautes terres d'Afrique de l'Est a régime pluviométrique bimodal. Rapport AFRENA, Nairobi: ICRAF.

Drechsel P.,Steiner,K.G.and Hagedon,F.1996,A review on the potential of improved fallows and green manure in Rwanda. Agroforestry system 33-109. ISAR Rubona, Rwanda

John Dixon and Aidan Gulliver with David Gibbon, 2001. Farming Systems and Poverty, improving farmers' livelihoods in a changing world, 2 p. Roma, Italy

Haque I, Jutsi I, Neate P.J.H, 1985. Potentials of forage legumes in farming systems of Sub-Sahara Afrca.Proceding of workshop held at ILCA Addis Abeba, Ethiopia.

ISAR, 1990.Document de référence pour la préparation du plan directeur nationale de la recherche agricole. Rubona Rwanda

ISAR, 1991. Perception paysanne de la variabilité des sites et gestion de leur productivité. en rapport annuel 1990. Département étude du milieu et systèmes de production. Rubona, Rwanda.

Jacques Tassin, 1989: Diversité des systèmes de production sous l'angle de

l'agroforesterie. Résultats d'enquête en milieu rural au Rwanda. Ruhande, Butare : ISAR Département de foresterie, and Nairobi: ICRAF 12-13p.

Juo, 1978: Selected methods for soil and plant analysis IITA, PMB 5320, Ibadan, Nigeria, 52 p.

Loning, N, 2002.Should Africa protects its farmers to revitalize its economy? Gatekeeper Series 105, IIED (International Institute for Environment and Development), London, UK.

Louise E.Buck,Eric C.M.Fernandes,1999.Agroforestry in Sustainable Agriculture Systems.CRC Press, Boca Raton,London,New York,Washington,DC

Gichuru,M.p, Bationo,A, Bekunda,M.A, Goma,H.C, Mafongonya P.L, Mugendi D.N, Murwira H.M.,.Nandwa S.M, Nyathi P.and. Swift M.J,2004.Soil fertility management in Africa: A regional perspective. Nairobi, Kenya

Mapfumo, P.and Giller, K.E., 2001.Soil fertility management strategies and practices by smallholder farmers in Semi-arid areas of Zimbabwe.ICRISAT/FAO, Pantancheru, AP, India.

MINAGRI, 1991. Commission nationale de l'agriculture, Rapport préliminaire, Kigali

MINAGRI, 1997.Plan directeur del'élevage volume I version préliminaire. MINAGRI, KIGALI.

MINECOFIN, 2004.Indicateur du développement du Rwanda. Kigali

MINIPLAN, 1984: Stratégies alimentaire au Rwanda. Objectifs, chiffres et programmes

d'actions. Document n°3. Kigali. 194 p.

Mutwewingabo et Rutunga, 1987: Etude des sols des stations d'essai du projet PIA situés dans la Mwogo, à Gitarama, à Kaduha et dans la vallée de l'Akanyaru, MINAGRI- PIA, 114 p.

National Research Council, 1993.Sustainable agriculture and environment in the Humid Tropics. National academy press, Washington, DC.

Niang, A. I. & Stiger E., 1990.Les systèmes d'utilisation des terres et leur potentiel agroforestier au Rwanda. In A. I. Niang ; A. Gahamanyi& E. Stiger. Eds., Actes de la première réunion agroforestière organisée par le projet ICRAF/ISAR du 13 au 15/9/1990 à kigali. AFRENA report No36. Butare, Rwanda. ICRAF/ISAR. 

Pridencio, C.F., 1993.Ring management of soils and crops in the West Africa semi-arid tropics: the case of the Mossi farming systems in Burkina Faso. Agri. Ecosystem .Environ. 47,237-264. Ouagadougou

Richard R. Harwood, 1979.Small farm developpement: Understanding and improving Farming systems in the humid tropics, Boulder, Colorado.

Robert A. Luening,.Richard M.S, Klemme M, William P. Mortenson, 1991. The farm management hand book, Interstate Publishers, Inc Danville, Illinois.

Rothenberg, H., 1980.Farming system in the tropics, third ed. Clarendon Press, Oxford. Sanchez,P.1999, Improved fallows come of age in the tropics. Agroforestry systems 47,3-12. Nairobi, Kenya

Scones I, 2001.Dynamics and diversity soil fertility management and farming livelihoods in Africa: case studies from Ethiopia, Mali and Zimbabwe.Earthscan Publication Ltd, London, UK.

SHAMIE ZINGORE, 2006.Exploring diversity within small-holder farming systems in Zimbabwe: Nutrient use efficiencies and resource management strategies for crop production, Wageningen.

Smaling,E.M.A., Fresco,L.O.,De Jager, A.,1996.Classifying and monitoring soil nutrient stocks and flows in African agriculture.Ambio 25,492-496.

Tittonell, P., 2003.Soil fertility gradients in smallholder farm of Western Kenya: Their origin, management and importance. Wageningen, Netherland

Tittonell, P., Vanlauwe B., Leffelaar P.A., Rowe E., Giller K.E., 2005b.Exporing diversity in soil fertility management of smallholder farms in western Kenya. I. Heterogeneity at region and farm scale.Agric.Ecosyst.Environ 110,149-165. Bangor, UK

Vanlauwe, B. and K.E.Giller, 2006.Popular myths around soil fertility management in Sub-Sahara Africa. Agriculture, Ecosystems and Environment 116 pp 34-46. Nairobi, Kenya

Shaner,W.W, Philipp,P.F ,Schmeh,W.R, 1981.Farming systems research and development: guidelines for developing countries. Volume I, United States agency for international development, Washington, DC, USA.

Willem C. Beets, 1982: Multiple cropping and tropical farming system: 31-43 p. Colorado, USA

Yearbook of Agriculture 1943-1947. Science in farming: United States, Department of Agriculture, Washington, DC, US Government printing office.


HITIMANA Nicolas, 1989.Etude du bilan d'azote, du phosphore et potassium sous deux systèmes de production du haricot (Phaseolus Vulgaris L) : Rotation sorgho--haricot et haricot bananeraie. Mémoire UNR Butare

MUBASHANKWAYA Isaac, 2005.Contribution du projet HPI à l'élevage bovin laitier au Rwanda : cas de la province de Byumba.Memoire, UNR Butare.

NSHIMYUMUKIZA Wellars et BENDA Théophile, 2005.Etude des systèmes de cultures intégrant l'agroforesterie dans la gestion des sols.Mémoire, ISAE

NYOMBAIRE George, 2001.Yield and phenological comparison of Longe1 and Hybrid bunder different nutrient treatments in the Central plateau of Rwanda: A case study of Tonga Experimental station.Memoire, UNR Butare

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