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Jenberu, Getachew, Nelson, Paul N., and Bird, Michael I. (2016) The effects of biochar, compost and their mixture and nitrogen fertilizer on yield and nitrogen use efficiency of barley grown on a Nitisol in the highlands of Ethiopia. Science of the Total Environment, 569-570. pp. 869-879.

Agegnehu, Getachew, Nelson, Paul N., and Bird, Michael I. (2016) Crop yield, plant nutrient uptake and soil physicochemical properties under organic soil amendments and nitrogen fertilization on Nitisols. Soil and Tillage Research, 160. pp. 1-13.

Agegnehu, Getachew, Lakew, Berhane, and Nelson, Paul (2014) Cropping sequence and nitrogen fertilizer effects on the productivity and quality of malting barley and soil fertility in the Ethiopian highlands. Archives of Agronomy and Soil Science, 60 (9). pp. 1261-1275.