000			03006nab a22003857a 4500
001			61268
003			MX-TxCIM
005			20240520222222.0
008			200131s2020 xxu|||p|op||| 00| 0 eng d
022			_a1876-4517
022			_a1876-4525 (Online)
024	8		_ahttps://doi.org/10.1007/s12571-019-00981-4
040			_aMX-TxCIM
041			_aeng
100	1		_911083 _aBanchayehu Tessema Assefa
245	1	0	_aUnravelling the variability and causes of smallholder maize yield gaps in Ethiopia
260			_aNew York (USA) : _bSpringer, _c2020.
500			_aPeer review
500			_aOpen Access
520			_aEthiopia has achieved the second highest maize yield in sub-Saharan Africa. Yet, farmers’ maize yields are still much lower than on-farm and on-station trial yields, and only ca. 20% of the estimated water-limited potential yield. This article provides a comprehensive national level analysis of the drivers of maize yields in Ethiopia, by decomposing yield gaps into efficiency, resource and technology components, and accounting for a broad set of detailed input and crop management choices. Stochastic frontier analysis was combined with concepts of production ecology to estimate and explain technically efficient yields, the efficiency yield gap and the resource yield gap. The technology yield gap was estimated based on water-limited potential yields from the Global Yield Gap Atlas. The relative magnitudes of the efficiency, resource and technology yield gaps differed across farming systems; they ranged from 15% (1.6 t/ha) to 21% (1.9 t/ha), 12% (1.3 t/ha) to 25% (2.3 t/ha) and 54% (4.8 t/ha) to 73% (7.8 t/ha), respectively. Factors that reduce the efficiency yield gap include: income from non-farm sources, value of productive assets, education and plot distance from home. The resource yield gap can be explained by sub-optimal input use, from a yield perspective. The technology yield gap comprised the largest share of the total yield gap, partly due to limited use of fertilizer and improved seeds. We conclude that targeted but integrated policy design and implementation is required to narrow the overall maize yield gap and improve food security.
546			_aText in English
650		7	_2AGROVOC _91314 _aZea mays
650		7	_2AGROVOC _93522 _aProduction
650		7	_2AGROVOC _91763 _aSmallholders
650		7	_2AGROVOC _92327 _aSustainable agriculture
650		7	_2AGROVOC _91356 _aYield gap
651		7	_2AGROVOC _92025 _aEthiopia
700	1		_aChamberlin, J. _gFormerly Socioeconomics Program _gSustainable Agrifood Systems _8I1706801 _92871
700	1		_99321 _aReidsma, P.
700	1		_aSilva, J.V. _8001712458 _gSustainable Intensification Program _gSustainable Agrifood Systems _99320
700	1		_avan Ittersum, M.K. _93944
773	0		_dNew York (USA) : Springer, 2020. _gv. 12, no. 1, p. 83–103 _tFood Security _wu93816 _x1876-4517
856	4		_yOpen Access through DSpace _uhttps://hdl.handle.net/10883/20660
942			_2ddc _cJA _n0
999			_c61268 _d61260