[1] Cantore, N. (2011) The Crop Intensification Program in Rwanda: A Sustainability Analysis. Overseas Development Institute.
http://dspace.cigilibrary.org/jspui/bitstream/123456789/31634/1/ODI-%20The%20Crop%20Intensification%20Program%20in%20Rwanda.pdf
[2] Boserup, E. (2005) The Conditions of Agricultural Growth: The Economics of Agrarian Change under Population Pressure. Transaction Publishers, Piscataway.
[3] Kelly, V., et al. (2001) Agricultural Intensification in Rwanda: An Elusive Goal. Food Security Research Project/ Division of Agricultural Statistics Policy Brief. Ministry of Agriculture, Animal Resources and Forestry, Kigali.
[4] Kagabo, D.M., Stroosnijder, L., Visser, S.M. and Moore, D. (2013) Soil Erosion, Soil Fertility and Crop Yield on Slow-Forming Terraces in the Highlands of Buberuka, Rwanda. Soil and Tillage Research, 128, 23-29.
http://dx.doi.org/10.1016/j.still.2012.11.002
[5] Vanlauwe, B. and Zingore, S. (2011) Integrated Soil Fertility Management: An Operational Definition and Consequences for Implementation and Dissemination. Better Crops with Plant Food, A Publication of the International Plant Nutrition, p. 4.
[6] Drechsel, P., Gyiele, L., Kunze, D. and Cofie, O. (2001) Population Density, Soil Nutrient Depletion, and Economic Growth in Sub-Saharan Africa. Ecological Economics, 38, 251-258.
http://dx.doi.org/10.1016/S0921-8009(01)00167-7
[7] Vanlauwe, B., Bationo, A., Chianu, J., Giller, K.E., Merckx, R., Mokwunye, U., et al. (2010) Integrated Soil Fertility Management Operational Definition and Consequences for Implementation and Dissemination. Outlook on Agriculture, 39, 17-24.
http://dx.doi.org/10.5367/000000010791169998
[8] Bucagu, C., Vanlauwe, B., Van Wijk, M.T. and Giller, K.E. (2014) Resource Use and Food Self-Sufficiency at Farm Scale within Two Agro-Ecological Zones of Rwanda. Food Security, 6, 609-628.
http://dx.doi.org/10.1007/s12571-014-0382-0
[9] Kimetu, J.M., Lehmann, J., Ngoze, S.O., et al. (2008) Reversibility of Soil Productivity Decline with Organic Matter of Differing Quality along a Degradation Gradient. Ecosystems, 11, 726-739.
http://dx.doi.org/10.1007/s10021-008-9154-z
[10] Sanginga, N.S. and Woomer, P.L. (2009) Integrated Soil Fertility Management in Africa: Principles, Practices, and Developmental Process. Free download form CIAT.
[11] Wasige, J.E., et al. (2014) Soil Fertility and Nutrient Balances of Low Input Land Use Systems of South-West Rwanda, Upstream of Lake Victoria Basin. J Agric Ecosyst Environ (under review).
[12] Nabahungu, N.L. (2012) Problems and Opportunities of Wetland Management in Rwanda. Wageningen Universiteit (Wageningen University), Wageningen.
[13] Kagabo, M.D. (2013) Participatory Integrated Watershed Management in the North-Western Highlands of Rwanda. Wageningen University, Wageningen.
[14] Zingore, S., Murwira, H.K., Delve, R.J. and Giller, K.E. (2007) Influence of Nutrient Management Strategies on Variability of Soil Fertility, Crop Yields and Nutrient Balances on Smallholder Farms in Zimbabwe. Agriculture, Ecosystems & Environment, 119, 112-126.
http://dx.doi.org/10.1016/j.agee.2006.06.019
[15] Cobo, J.G., Dercon, G. and Cadisch, G. (2010) Nutrient Balances in African Land Use Systems across Different Spatial Scales: A Review of Approaches, Challenges and Progress. Agriculture, Ecosystems & Environment, 136, 1-15.
http://dx.doi.org/10.1016/j.agee.2009.11.006
[16] Nkonya, E. (2004) Strategies for Sustainable Land Management and Poverty Reduction in Uganda. International Food Policy Research Institute (IFPRI) Research Report #133. Washington DC, Vol. 133.
[17] Tittonell, P., Dercon, G. and Cadisch, G. (2007) Analysing Trade-Offs in Resource and Labour Allocation by Smallholder Farmers Using Inverse Modelling Techniques: A Case-Study from Kakamega District, Western Kenya. Agricultural Systems, 95, 76-95.
http://dx.doi.org/10.1016/j.agsy.2007.04.002
[18] Nabahungu, N.L. and Visser, S.M. (2013) Farmers’ Knowledge and Perception of Agricultural Wetland Management in Rwanda. Land Degradation & Development, 24, 363-374.
http://dx.doi.org/10.1002/ldr.1133
[19] van Beek, C.L., et al. (2009) Farm Nitrogen Flows of Four Farmer Field Schools in Kenya. Nutrient Cycling in Agroecosystems, 83, 63-72.
http://dx.doi.org/10.1007/s10705-008-9199-6
[20] Tittonell, P. (2008) Msimu wa Kupanda: Targeting Resources within Diverse, Heterogeneous and Dynamic Farming Systems of East Africa. Wageningen Universiteit, Wageningen.
[21] Foli, S. (2012) Farm Characterisations in the Southern and Northern Guinea Savannah Zones of Nigeria. M.Sc. Thesis, Plant Production Systems, Wageningen University, Wageningen.
[22] Turmel, M.-S., et al. (2015) Crop Residue Management and Soil Health: A Systems Analysis. Agricultural Systems, 134, 6-16.
[23] Tittonell, P., Vanlauwe, B., Misiko, M. and Giller, K.E. (2011) Targeting Resources within Diverse, Heterogeneous and Dynamic Farming Systems: Towards a “Uniquely African Green Revolution”. In: Innovations as Key to the Green Revolution in Africa, Springer, Location, 747-758.
http://dx.doi.org/10.1007/978-90-481-2543-2_76
[24] Groot, J.C., Oomen, G.J. and Rossing, W.A. (2012) Multi-Objective Optimization and Design of Farming Systems. Agricultural Systems, 110, 63-77.
http://dx.doi.org/10.1016/j.agsy.2012.03.012
[25] Wasige, E.J. (2013) A Spatially Explicit Approach to Determine Hydrology, Erosion and Nutrients Dynamics in an Upstream Catchment of Lake Victoria Basin. University of Twente Faculty of Geo-Information and Earth Observation (ITC), Enschede, ITC Dissertation 239.