Your search found 2 records
1 Erkossa, Teklu; Menker, M.; Betrie, G. D. 2011. Effects of bed width and planting date on water productivity of wheat grown on vertisols in the Ethiopian highlands. Irrigation and Drainage, 60(5):635-643. [doi: https://doi.org/10.1002/ird.608]
Water productivity ; Wheat ; Water requirements ; Vertisols ; Highlands / Ethiopia / Gimbichu District
(Location: IWMI HQ Call no: PER Record No: H043581)
(0.25 MB)
Waterlogging is a challenge to wheat (Triticum durum Desf.) productivity under the rainfed system on Vertisols in the Ethiopian Highlands. However, using suitable seedbed types and manipulating planting dates can minimize the effects. A four-year (2000–2003) field experiment was conducted to evaluate three seedbed types, broad bed and furrows (BBF) with early planting, the traditional ridge and furrows (RF) and its modified version (wide ridge and furrows (WRF)), both under early and late planting, in terms of water productivity of wheat. The FAOAquaCrop model was used to estimate crop water requirements. The result indicated that late planting on WRF or RF significantly ( p<0.05) increased grain yield and water productivity. Late planting on WRF (LWRF) increased rainfall water productivity by 66, 44 and 51%, respectively, as compared to BBF, earlyplanted WRF (EWRF) and late-planted RF (LRF). This was because of its increased effective area for crop growth over the RF and its relative suitability of planting time over the BBF. Therefore, late-planted WRF can be used for enhanced water productivity of wheat, while introducing fast-grow crops that are tolerant to waterlogging and growing early in the season may further enhance the land and water productivity in the area.
2 Erkossa, T.; Stahr, K.; Gaiser, T. 2004. Participatory soil quality assessment: the case of smallholder farmers in Ethiopian highlands. Australian Journal of Soil Research, 42(7):793-797. [doi: https://doi.org/10.1071/SR04021]
Soil management ; Soil quality ; Soil types ; Indicators ; Watersheds ; Highlands ; Farmers ; Crop production / Ethiopia / Gimbichu District / Caffee Doonsa
(Location: IWMI HQ Call no: e-copy only Record No: H044812)
(0.28 MB)
The study was conducted at Caffee Doonsa (08°88'N, 39°08'E; 2400 m asl), a small watershed in the central highlands of Ethiopia, in order to identify farmers’ goals of soil management and the indicators they use in selecting soils for a certain function, and to categorise the soils in different quality groups with respect to the major functions. Thirty-six male farmers of different age and wealth groups participated in a Participatory Rural Appraisal technique. They listed and prioritised 12 soil functions in the area and itemised the soil quality indicators (characteristics). Based on the indicators, the soils in the watershed were classified into 3 soil quality (SQ) groups (Abolse, Kooticha, and Carii). The SQ groups have been evaluated and ranked for the major soil functions. For crop production, Abolse was graded best, followed by Kooticha and Carii, respectively. The grain and straw yield data of wheat (Triticum aestivum L.) taken from the SQ groups confirmed the farmers claim, in that Abolse gave the highest grain yield (4573 kg/ha), followed by 4411 and 3657 kg/ha for Kooticha and Carii, respectively. Local insights should be included in systematic soil quality assessment, and in planning and implementation of various soil management interventions.
Powered by DB/Text WebPublisher, from
