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Options for Sustainable Intensification of Maize Production in Ethiopia

Author

Listed:
  • Amit Kumar Srivastava

    (Institute of Crop Science and Resource Conservation, University of Bonn, Katzenburgweg 5, D-53115 Bonn, Germany)

  • Cho Miltin Mboh

    (Institute of Crop Science and Resource Conservation, University of Bonn, Katzenburgweg 5, D-53115 Bonn, Germany)

  • Babacar Faye

    (Institute of Crop Science and Resource Conservation, University of Bonn, Katzenburgweg 5, D-53115 Bonn, Germany)

  • Thomas Gaiser

    (Institute of Crop Science and Resource Conservation, University of Bonn, Katzenburgweg 5, D-53115 Bonn, Germany)

  • Arnim Kuhn

    (Institute for Food and Resource Economics, University of Bonn, Nussallee 21, D-53115 Bonn, Germany)

  • Engida Ermias

    (Institute for Food and Resource Economics, University of Bonn, Nussallee 21, D-53115 Bonn, Germany)

  • Frank Ewert

    (Institute of Crop Science and Resource Conservation, University of Bonn, Katzenburgweg 5, D-53115 Bonn, Germany)

Abstract

The agricultural intensification of farming systems in sub-Saharan Africa is a prerequisite to alleviate rural poverty and to improve livelihood. In this modelling exercise, we identified sustainable intensification scenarios for maize-based cropping systems in Ethiopia. We evaluated Conventional Intensification (CI) as continuous maize monocropping using higher Mineral Fertilizer (MF) rates with and without the incorporation of Crop Residues (CR) in the soil. We also evaluated the effect of groundnut in rotation with the maize-based cropping system with the current Farmer’s Practice + Rotation (FP + Rotation) and increased MF application rates (CI + Rotation) combined with CR incorporation. The results suggest that, under CI, there was a positive effect of MF and CR. The incorporation of only CR in the field increased the maize yield by 45.3% compared to the farmer’s yield under current MF rates. CR combined with higher MF (60 kg N ha −1 + 20 kg P ha −1 ) increased the yield by 134.6%. Incorporating CR and MF was also beneficial under rotation with groundnut. The maize yields increased up to 110.1% depending upon the scenarios tested. In the scenario where CR was not incorporated in the field, the maize yield declined by 21.9%. The Gross Economic Profit suggests that groundnut in rotation with maize is advantageous across Ethiopia in terms of the net return with a few exceptions.

Suggested Citation

  • Amit Kumar Srivastava & Cho Miltin Mboh & Babacar Faye & Thomas Gaiser & Arnim Kuhn & Engida Ermias & Frank Ewert, 2019. "Options for Sustainable Intensification of Maize Production in Ethiopia," Sustainability, MDPI, vol. 11(6), pages 1-20, March.
    • Handle: RePEc:gam:jsusta:v:11:y:2019:i:6:p:1707-:d:215881
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    References listed on IDEAS

    as
    1. Folberth, Christian & Yang, Hong & Gaiser, Thomas & Abbaspour, Karim C. & Schulin, Rainer, 2013. "Modeling maize yield responses to improvement in nutrient, water and cultivar inputs in sub-Saharan Africa," Agricultural Systems, Elsevier, vol. 119(C), pages 22-34.
    2. Jaleta, Moti & Yirga, Chilot & Kassie, Menale & De Groote, Hugo & Shiferaw, Bekele, 2013. "Knowledge, Adoption and Use Intensity of Improved Maize Technologies in Ethiopia," 2013 Fourth International Conference, September 22-25, 2013, Hammamet, Tunisia 161483, African Association of Agricultural Economists (AAAE).
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