Estimation of Fertiliser Use Efficiency in Current Maize Production Systems in Ethiopia
Amit Kumar Srivastava, Cho Miltin Mboh, Thomas Gaiser, Frank Ewert
University of Bonn, Inst. Crop Sci. and Res. Conserv. (INRES), Germany
Maize provides the main calorie requirements in the Ethiopian diet and holds a key role in addressing food security issues. The prevailing agriculture production systems in the dryer regions of Ethiopia are vulnerable due to the lack of irrigation systems and large spatial and temporal variability in rainfall. The situation gets aggravated by a predominance of low-input production systems and depleted soils. Furthermore, interactions between the limiting resources water and nutrients strongly influence the efficiency with which the resources are used, the crop productivity, and the sustainability of production systems. Therefore, understanding the resource use and resource use efficiency of maize current production systems could help to identify possibilities of producing more with the available resources and to address the variability in yield and biomass production across the Agro-ecological zones (AEZs) in Ethiopia.
Keywords: Crop modelling, Ethiopia, fertiliser use efficiency, maize
Contact Address: Amit Kumar Srivastava, University of Bonn, Institute of Crop Science and Resource Conservation (INRES), Katzenburgweg 5, 53115 Bonn, Germany, e-mail: amituni-bonn.de