Abstract
Maize (Zea mays L.) and sorghum (Sorghum bicolor L. Moench) are important intermediate and low elevation crops in Ethiopia but yields are low. The information for determination of nutrient rate recommendations with site specificity is scarce. On-farm and on-station trials were conducted to determine the yield responses to N and P and to diagnose K–Mg–S–Zn–B deficiencies in central, northern and western Ethiopia. Mathematical functions for grain yield response to applied nutrients were fitted, the economical optimum rates (EOR) were determined, and profit potential for fertilizer use was assessed. Maize and sorghum grain yields were inconsistently affected by N and P application across trials with no response in some cases. The overall mean EOR for N were 47 and 60 kg ha−1 for maize and 23 and 37 kg ha−1 for sorghum with high and low cost fertilizer-N, respectively. The overall maize response to P was linear with EOR of P > 30 kg ha−1 for all fertilizer-P costs. The overall sorghum response to P was too inconsistent to fit a response function and the results indicated an EOR of 0 kg ha−1 for all fertilizer costs considered. The overall maize and sorghum responses to N were curvilinear to plateau implying that the profit to cost ratio can be improved by applying fertilizer-N at less than EOR giving an opportunity to farmers who are financially-constrained in fertilizer use.
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Abbreviations
- CP:
-
kg of maize or sorghum required to equal the cost of 1 kg of nutrient applied
- EOR:
-
The economically optimal rate of nutrient application or the rate expected to maximize net return per hectare to nutrient application
- PCR:
-
Profit to cost ratio, or the net benefit divided by the added costs due to application of a nutrient
References
Bayu W, Getachew A, Mamo T, Kiadó A (2002) Response of sorghum to nitrogen and phosphorus fertilization in semi-arid environments in Welo, Ethiopia. Acta Agron Hung 50:53–65
Bekeko Z (2013) Effect of nitrogen and phosphorus fertilizers on some soil properties and grain yield of maize (BH-140) at Chiro, Western Hararghe, Ethiopia. Afr J Agric Res 8:5693–5698
Bekeko Z (2014) Effect of enriched farmyard manure and inorganic fertilizers on grain yield and harvest index of hybrid maize (BH-140) at Chiro, eastern Ethiopia. Afr J Agric Res 9:663–669
CHIRPS 2.0 (2018) Climate hazards group infrared precipitation with station data (CHIRPS). ftp://chg-ftpout.geog.ucsb.edu/pub/org/chg/products/CHIRPS-2.0/global_monthly/tifs/
CIMMYT (1988) From agronomic data to farmer recommendations: an economics training manual. CIMMYT, Mexico
Cyamweshi AR, Nabahungu LN, Senkoro CJ, Kibunja C, Mukuralinda A, Kaizzi KC, Mvuyekure SM, Kayumba J, Ndungu-Magiroi KW, Koech MN, Wortmann CS (2018) Wheat nutrient response functions for the East Africa highlands. Nutr Cycl Agroecosyst. https://doi.org/10.1007/s10705-018-9912-z
Debele T (1999) N, P fertilizer trail on Gutto and BH-140 maize verieties at Bako. IAR Newl Agric Res 9:2–3
Dereje G, Tamane D, Anbessa B, Walelign B (2018) Response of sorghum and soybean to lime and phosphorus application and its subsequent effect on acidity of soils in Assosa area. In: Agegnehu G, Gurmu G, Abera T, Muleta D (eds) Soil fertility and plant nutrient management. Ethiopia Institue of Agricultural Research, Addis Ababaa, pp 139–144
Demissie N, Bekele I (2017) Optimizing fertilizer use within an integrated soil fertility management framework in Ethiopia. In: Wortmann CS, Sones K (eds) Fertilizer use optimization In sub-Saharan Africa. CAB International, Nairobi, pp 52–62
FAOSTAT (2019) https://www.fao.org/faostat/en/#data/QC. Accessed 9 May 2019
Garba M, Serme I, Wortmann CS (2018) Relating crop yield response to fertilizer and soil test information for sub-Saharan Africa. Soil Sci Soc Am J 82:862–870. https://doi.org/10.2136/sssaj2018.02.0066
GYGA (Global Yield Gap Atlas) (2018) https://www.yieldgap.org/web/guest/download_data. Accessed 7 July 2019
Hadgu F, Gebrekidan H, Kibret K, Yitaferu B (2013) Maize (Zea mays L.) crop response to phosphorus fertilization on fluvisols in Northern Ethiopia. J Biodivers Environ Sci 3:54–67
Kihara J, Nziguheba G, Zingore S, Coulibaly A, Esilaba A, Kabambe V, Njoroge S, Palm C, Huising J (2016) Understanding variability in crop response to fertilizer and amendments in sub-Saharan Africa. Agric Ecosyst Environ 229:1–12. https://doi.org/10.1016/j.agee.2016.05.012
Jansen J, Wortmann CS, Stockton MC, Kaizzi KC (2013) Maximizing net returns to financially constrained fertilizer use. Agron J 105:573–578. https://doi.org/10.2134/agronj2012.0413
Kaizzi CK, Byalebeka J, Semalulu O, Alou I, Zimwanguyizza W, Nansamba A, Musinguzi P, Ebanyat P, Hyuha T, Wortmann CS (2012a) Maize response to fertilizer and nitrogen use efficiency in Uganda. Agron J 104:73–82
Kaizzi CK, Byalebeka J, Semalulu O, Alou I, Zimwanguyizza W, Nansamba A, Musinguzi P, Ebanyat P, Hyuha T, Wortmann CS (2012b) Sorghum response to fertilizer and nitrogen use efficiency in Uganda. Agron J 104:83–90. https://doi.org/10.2134/agronj2011.0182
Liben FM, Wortmann CS, Kindie T (2015) Dry soil planting of maize for variable onset of rainfall in Ethiopia. Agron J 107:1618–1625
Liben FM, Wortmann C, Yang H, Lindquist J, Tadesse T, Wegary D (2018) Crop model and weather data generation evaluation for conservation agriculture in Ethiopia. Field Crops Res 228:122–134. https://doi.org/10.1016/j.fcr.2018.09.001
Liben FM, Wortmann C, Tirfessa A (2020a) Geospatial modeling of conservation tillage and nitrogen timing effects on yield and soil properties. Agric Syst. https://doi.org/10.1016/j.agsy.2019.102720
Liben FM, Tesfaye M, Tolcha T, Wortmann C (2020b) Barley and wheat nutrient responses for Shewa, Ethiopia. Agron J 112(2):1309–1317. https://doi.org/10.1002/agj2.20020
Mesfin T, Tesfahunegn GB, Wortmann CS, Mamo M, Nikus O (2010) Skip-row planting and tie-ridging for sorghum production in semi-arid areas of Ethiopia. Agron J 102:745–750
Orkaido O (2004) Effects of nitrogen and phosphorus fertilizers on yield and yield `components of maize (Zea mays L.) on black soil of Regede Konso. MS thesis, Alemaya University
Rattalino Edreira JI, Cassman KG, Hochman Z, van Ittersum MK, van Bussel L, Claessens L, Grassini P (2018) Beyond the plot: technology extrapolation domains for scaling out agronomic science. Environ Res Lett 13:054027. https://doi.org/10.1088/1748-9326/aac092
Reddy MS, Georgis K (1993) Dryland farming research in Ethiopia: review of the past and thrust in the nineties. Ethiopia Institute of Agricultural Research, Addis Ababa
Regassa K (2005) Effects of integrated use of decomposed coffee husk and inorganic N and P fertilizers on yield and yield related parameters of sorghum on Nitisols of Jimma Area. MS thesis, Alemaya University, Ethiopia.
Tadesse A, Kim HK (2015) Yield related traits and yield of quality protein maize (Zea mays l.) affected by nitrogen levels to achieve maximum yield in the Central Rift Valley of Ethiopia. J Biol Agric Healthc 5:139–148
World Data Atlas (2016) https://knoema.com/atlas/Ethiopia/Fertilizer-consumption. Accessed 27 Feb 2020
Wortmann C, Kaizzi K (2016) Optimization of financially constrained fertilizer use. In: Chatterjee A, Clay D (eds) Soil fertility management in agroecosystems. ASA, CSSA, and SSSA, Madison
Wortmann CS (2018) Geo-referenced crop-nutrient response function dataset for Tropical Africa. Data from: Maize-nutrient response information applied across Sub-Saharan Africa. https://doi.org/10.5061/dryad.tt6h5h1
Wortmann CS, Milner M, Tesfahunegn GB (2017) Spatial analysis for optimizations of fertilizer use. In: Wortmann CS, Sones K (eds) Fertilizer use optimization in sub-Saharan Africa. CAB International, Nairobi, pp 20–24
Wortmann C, Senkoro C, Cyamweshi AR, Kibunja C, Nkonde D, Munthali M, Nalivata P, Nabahungu LN, Kaizzi K (2018) Maize-nutrient response functions for Eastern and Southern Africa. Agron J 110:2070–2079. https://doi.org/10.2134/agronj2018.04.0268
Acknowledgements
The work was implemented as part of a network of research institutions in 13 countries in sub-Saharan Africa to improve farmers’ profit potential of fertilizer use for diverse food crops. It was financially supported by the Alliance for a Green Revolution in Africa (Grant No. AGRA SHP 2013-3) and the Bill and Melinda Gates Foundation (Grant No. AGRA SHP 2013-3). It had technical and scientific advisory support from the University of Nebraska-Lincoln. We acknowledge the contributions of research support technicians and the farmers who cooperated in conducting field trials.
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Liben, F.M., Adisu, T., Atnafu, O. et al. Maize and sorghum nutrient response functions for Ethiopia. Nutr Cycl Agroecosyst 117, 401–410 (2020). https://doi.org/10.1007/s10705-020-10077-7
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DOI: https://doi.org/10.1007/s10705-020-10077-7