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YIELD GAPS AND RESOURCE USE ACROSS FARMING ZONES IN THE CENTRAL RIFT VALLEY OF ETHIOPIA

Published online by Cambridge University Press:  13 October 2015

MEZEGEBU GETNET ,
MARTIN VAN ITTERSUM ,
HUIB HENGSDIJK  and
KATRIEN DESCHEEMAEKER
MEZEGEBU GETNET*
Affiliation:
Plant Production Systems Group, Wageningen University, PO Box 430, 6700 AK Wageningen, The Netherlands Plant Research International, Wageningen University and Research Centre, PO Box 616, 6700 AP Wageningen, The Netherlands Ethiopian Institute of Agricultural Research, Melkassa Research Centre, PO Box 436, Nazareth, Ethiopia
MARTIN VAN ITTERSUM
Affiliation:
Plant Production Systems Group, Wageningen University, PO Box 430, 6700 AK Wageningen, The Netherlands
HUIB HENGSDIJK
Affiliation:
Plant Research International, Wageningen University and Research Centre, PO Box 616, 6700 AP Wageningen, The Netherlands
KATRIEN DESCHEEMAEKER
Affiliation:
Plant Production Systems Group, Wageningen University, PO Box 430, 6700 AK Wageningen, The Netherlands
*
Corresponding author. Email: mezegebu.debas@wur.nl
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Summary

In the Central Rift Valley (CRV) of Ethiopia, low productive cereal systems and a declining resource base call for options to increase crop productivity and improve resource use efficiency to meet the growing demand of food. We compiled and analysed a large amount of data from farmers’ fields (>10,000) and experimental data across the CRV from 2004–2009 to quantify yield gaps (Yg) between actual (average and best performing farmers) and experimental (water-limited potential (Yw)) yields of maize and wheat in homogenous farming zones (HFZs). Resource use efficiencies (nutrients and water) of maize and wheat were also analysed to assess spatial variation and scope for improvements. The average (2004–2009) yield gap of maize and wheat in the CRV ranged between 4.2 t ha−1 and 9.2 t ha−1, and 2.5 t ha−1 and 4.7 t ha−1, respectively, across farming zones. The yield gap was lowest in the Central lowlands, where Yw was also lowest, i.e. 6.5 t ha−1 for maize and 4.4 t ha−1 for wheat, compared with Yw in the Eastern highlands (11 t ha−1 for maize and 6.7 t ha−1 for wheat) and Western highlands (10.8 t ha−1 for maize and 5.7 t ha−1 for wheat). The actual nitrogen (N) and phosphorus (P) application in farmers’ fields was low, as about 46% of maize and 27% of wheat fields did not receive fertilizers, while the average applied mineral fertilizer rates across all farmers (2.6–16.5 kg N ha−1 and 2.2–17.3 kg P ha−1 across HFZs and crops) were far below the recommended rate. On average, the best performing farmers applied 8–20 kg N ha−1 and 5–21 kg P ha−1 ranging across HFZs and crops. Increasing N application to recommended rates had only a small effect on narrowing the yield gap under current farmers’ management. Therefore, the yield gap closure strongly depends on improving other aspects of crop management while paying attention to the interaction with nutrient management. Since rain water use efficiency (seasonal rainfall) of water-limited yields was 12–17.3 kg mm−1 for maize and 7.4–10.6 kg mm−1 for wheat and much higher than that of actual yields (2.7–4.3 kg mm−1 for maize and 2.3–3.5 kg mm−1 for wheat), improving the input use and crop management can increase water use efficiency. A large set of experimental and survey data enabled us to gain insight in the spatial and temporal variation in yield gaps and input rates and in differences between average and the best performing farmers.

Type
Research Article
Information
Experimental Agriculture , Volume 52 , Issue 4 , October 2016 , pp. 493 - 517
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Copyright
Copyright © Cambridge University Press 2015 

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References

REFERENCES

Abate, A. and Lemenih, M. (2014). Detecting and quantifying land use/land cover dynamics in Nadda Asendabo Watershed, South Western Ethiopia. International Journal of Environmental Sciences 3 (1):45–50.Google Scholar
Adimassu, Z., Kessler, A., Yirga, C. and Stroosnijder, L. (2013). Farmers’ perceptions of land degradation and their investments in land management: a case study in the Central Rift Valley of Ethiopia. Environmental Management 51 (5):989–998.Google Scholar
Admassu, H., Getinet, M., Thomas, T. S., Waithaka, M. and Kyotalimye, M. (2013). Ethiopia. In East African Agriculture and Climate Change; A Comperhensive Analysis, 149–182 (Eds Waithaka, M., Nelson, G. C., Thomas, T. S. and Kyotalimye, M.). Washington, DC: International Food Policy Research Institute.Google Scholar
Ali, H., Descheemaeker, K., Steenhuis, T. S. and Pandey, S. (2011). Comparison of land use and land cover changes, drivers and impact for a moisture-sufficient and drought-prone region in the Ethiopian highlands. Experimental Agriculture 47:71–83.CrossRefGoogle Scholar
Astatke, A., Mamo, T., Peden, D. and Diedhiou, M. (2004). Participatory on-farm conservation tillage trial in the Ethiopian highland vertisols: the impact of potassium application on crop yields. Experimental Agriculture 40 (3): 369–379.CrossRefGoogle Scholar
Ayenew, T. (2002). Recent changes in the level of Lake Abiyata, central main Ethiopian Rift. Hydrological Sciences Journal 47:493–503.CrossRefGoogle Scholar
Cassman, K. G., Dobermann, A., Walters, D. T. and Yang, H. (2003). Meeting cereal demand while protecting natural resources and improving environmental quality. Annual Review of Environment and Resources 28:315–358.Google Scholar
Central Statistical Agency (CSA). (2007). Summary Report for the 2007 Population and Housing Census First Release Data. Addis Ababa, Ethiopia: CSA.Google Scholar
Coe, R. and Stern, R. D. (2011). Assssing and addressing climate-induced risk in Sub-Saharan rain-fed agriculture: lessons learned. Experimental Agriculture 47 (2):395–410.Google Scholar
Dessie, G. and Kleman, J. (2007). Pattern and magnitude of deforestation in the South Central Rift Valley region of Ethiopia. Mountain Research and Development 27 (2):162–168.CrossRefGoogle Scholar
De Wit, C. T. (1992). Resource use efficiency in agriculture. Agricultural Systems 40:125–151.Google Scholar
Food and Agriculture Organisation (FAO). (2013). FAOSTAT 2013. FAO statistical database available at: http://faostat.fao.org/site/567/default.aspx (accessed 7 November 2013).Google Scholar
Garedew, E., Sandewall, M., Söderberg, U. and Campbell, B. (2009). Land-use and land-cover dynamics in the Central Rift Valley of Ethiopia. Environmental Management 44 (4):683–694.Google Scholar
Gebrelibanos, T. and Assen, M. (2015). Land use/land cover dynamics and their driving forces in the Hirmi watershed and its adjacent agro-ecosystem, highlands of Northern Ethiopia. Journal of Land Use Science 10 (1):81–94.Google Scholar
Getnet, M., Hengsdijk, H. and Van Ittersum, M. (2014). Disentangling the impacts of climate change, land use change and irrigation on the Central Rift Valley water system of Ethiopia. Agricultural Water Management 137:104–115.Google Scholar
Giller, K. E., Rowe, E. C., Ridder, N. D. and Keulen, H. V. (2006). Resource use dynamics and interactions in the tropics: scaling up in space and time. Agricultural Systems 88:8–27.CrossRefGoogle Scholar
Godfray, H. C. J., Beddington, J. R., Crute, I. R., Haddad, L., Lawrence, D., Muir, J. F., Pretty, J., Robinson, S., Thomas, S. M. and Toulmin, C. (2010). Food Security: the challenge of feeding 9 billion people. Science 327 (5967):812–818.CrossRefGoogle ScholarPubMed
GYGA. (2014).The global yield gap and water productivity atlas. Available at: http://www.yieldgap.org/gygamaps/app/index.html (accessed 17 June 2014).Google Scholar
Haileslassie, A., Priess, J., Veldkamp, E., Teketay, D. and Lesschend, J. P. (2005). Assessment of soil nutrient depletion and its spatial variability on smallholders’ mixed farming systems in Ethiopia using partial versus full nutrient balances. Agriculture, Ecosystems and Environment 108:1–16.CrossRefGoogle Scholar
Howard, J., Crawford, E., Kelly, V., Demeke, M. and Jeje, J. J. (2003). Promoting high-input maize technologies in Africa: the Sasakawa-Global 2000 experience in Ethiopia and Mozambique. Food Policy 28:335–348.Google Scholar
International Food Policy Research Institute (IFPRI). (2006). Atlas of Ethiopian Rural Economy. Washington, DC: IFPRI.Google Scholar
International Food Policy Research Institute (IFPRI). (2013). Agricultural Growth Program (AGP) of Ethiopia. Baseline Report 2011. Washington, DC: IFPRI, 218 pp.Google Scholar
Kassie, B. T., Rötter, R. P., Hengsdijk, H., Asseng, S., Van Ittersum, M. K., Kahiluto, H. and Van Keulen, H. (2014a). Climate variability and change in the Central Rift Valley of Ethiopia: challenges for rainfed crop production. Journal of Agricultural Science 152 (1):58–74.Google Scholar
Kassie, B. T., Van Ittersum, M. K., Hengsdijk, H., Asseng, S., Wolf, J. and Rötter, R. P. (2014b). Climate-induced yield variability and yield gaps of maize (Zea mays L.) in the Central Rift Valley of Ethiopia. Field Crops Research 160:41–53.Google Scholar
Kearney, J. (2010). Global and regional food consumption patterns and trends. Philosophical Transition of the Royal Society B 365:2793–2807.Google Scholar
Lobell, D. B., Cassman, K. G. and Field, C. B. (2009).Crop yield gaps: their importance, magnitudes, and causes. Annual Review of Environmental Resources 34:179–204.CrossRefGoogle Scholar
Mengistu, D. A. and Waktola, D. K. (2014). Monitoring land use/land cover change impacts on soils in data scarce environments: a case of south-central Ethiopia. Journal of Land Use Science doi: http://dx.doi.org/10.1080/1747423X.2014.927011.Google Scholar
Meshesha, D. T., Tsunekawa, A., Tsubo, M. and Haregeweyn, N. (2012). Dynamics and hotspots of soil erosion and management scenarios of the Central Rift Valley of Ethiopia. International Journal of Sediment Research 27:84–99.CrossRefGoogle Scholar
Molla, A. (2013). Farmers’ knowledge helps develop site specific fertilizer rate recommendations, central highlands of Ethiopia. World Applied Sciences Journal 22 (4):555–563.Google Scholar
Ray, D. K., Mueller, N. D., West, P. C. and Foley, J. A. (2013). Yield trends are insufficient to double global crop production by 2050. PLoS ONE 8 (6):e66428. doi:66410.61371/journal.pone.0066428.CrossRefGoogle ScholarPubMed
Segele, Z. T. and Lamb, P. J. (2005). Characterization and variability of Kiremit rainy season over Ethiopia. Meteorology and Atmospheric Physics 89:153–180.Google Scholar
Sivakumar, M. V. K. (1988). Predicting rainy season potential from the onset of rains in southern Sahelian and Sudanian climate zones of West Africa. Agricultural and Forest Meteorology 42:295–305.Google Scholar
Spielman, D. J., Davis, K., Negash, M. and Ayele, G. (2011). Rural innovation systems and networks: findings from a study of Ethiopian smallholders. Agriculture and Human Values 28:195–212.Google Scholar
Tittonell, P. and Giller, K. E. (2013). When yield gaps are poverty traps: the paradigm of ecological intensification in African smallholder agriculture. Field Crops Research 143:76–90.Google Scholar
Tittonell, P., Vanlauwe, B., Leffelaar, P. A., Shepherd, K. D. and Giller, K. E. (2005). Exploring diversity in soil fertility management of smallholder farms in western Kenya II. Within-farm variability in resource allocation, nutrient flows and soil fertility status. Agriculture, Ecosystems and Environment 110:166–184.Google Scholar
Tsegaye, D., Moe, S. R., Vedeld, P. and Aynekulud, E. (2010). Land-use/cover dynamics in Northern Afar rangelands, Ethiopia. Agriculture, Ecosystems & Environment 139 (1–2):174–180.Google Scholar
Van Ittersum, M. K., Cassman, K. G., Grassini, P., Wolf, J., Tittonell, P. and Hochmand, Z. (2013). Yield gap analysis with local to global relevance – a review. Field Crops Research 143:4–17.CrossRefGoogle Scholar
Van Ittersum, M. K. and Rabbinge, R. (1997). Concepts in production ecology for analysis and quantification of agricultural input–output combinations. Field Crops Research 52:197–208.Google Scholar
Worku, M. and Zelleke, H. (2007). Advances in improving harvest index and grain yield of maize in Ethiopia. East African Journal of Sciences 1 (2):112–119.Google Scholar
Zeleke, G. and Hurni, H. (2001). Implications of land use and land cover dynamics for mountain resource degradation in the northwestern Ethiopian highlands. Mountain Research and Development 21 (2):184–191.Google Scholar