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- aggregation classification "C3".
- aggregation creator B84104.
- aggregation creator B84105.
- aggregation creator B84106.
- aggregation creator B84107.
- aggregation creator B84108.
- aggregation creator B84109.
- aggregation creator B84110.
- aggregation creator person.
- aggregation creator person.
- aggregation creator person.
- aggregation date "2011".
- aggregation hasFormat 1185515.bibtex.
- aggregation hasFormat 1185515.csv.
- aggregation hasFormat 1185515.dc.
- aggregation hasFormat 1185515.didl.
- aggregation hasFormat 1185515.doc.
- aggregation hasFormat 1185515.json.
- aggregation hasFormat 1185515.mets.
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- aggregation hasFormat 1185515.rdf.
- aggregation hasFormat 1185515.ris.
- aggregation hasFormat 1185515.txt.
- aggregation hasFormat 1185515.xls.
- aggregation hasFormat 1185515.yaml.
- aggregation language "eng".
- aggregation subject "Earth and Environmental Sciences".
- aggregation title "Effects of resource-conserving tillage in the Ethiopian highlands, a sustainable option for soil and water management and crop productivity: a case study from Dogua Tembien".
- aggregation abstract "In the Ethiopian highlands, croplands yield extremely high volumes of storm runoff and are the major contributor to sediment load in the rivers. Resource-conserving tillage is one of the options to curb these problems of high runoff response and sediment transport. Hence, a long-term tillage experiment has been carried out (2005 to 2009) on a Vertisol to quantify changes in runoff, soil loss and crop yield due to Conservation Agriculture (CA) in the sub-humid Dogua Tembien district of the Northern highlands of Ethiopia. The experimental layout was implemented in a randomized complete block design with 3 replications on permanent plots of 5 m by 19 m. The tillage treatments were (i) permanent raised bed (PB) in a furrow and bed system with 30% standing crop residue retention and no-tillage on top of the bed, (ii) reduced tillage, locally called terwah (TER), with ploughing once at sowing with 30% standing crop residue retention and contour furrows made at 1.5m distance interval, and (iii) conventional tillage (CT) with a minimum of 3 tillage operations and removal of crop residues. All ploughing, as well as refreshing of the furrows of the permanent raised beds when sowing, was done using the local ard plough mahresha. Crops planted during the five years were wheat, grass pea, wheat, hanfets (wheat and barley sown together) and grass pea. Glyphosate was sprayed starting from the third year (2007) at 2 L/ha before planting to control pre-emergent weed in PB and TER. Runoff and soil loss were measured in plastic sheet lined collector trenches, which were located at the lower end of each plot. Crop stands were evaluated with local farmers and NDVI was measured on the spot at several phenological stages, using green seeker. Significantly different (p<0.05) soil losses of 12.7, 16.2 and 27.3 t ha-1 y-1 were recorded for PB, TER and CT, respectively. Similarly, the mean runoff was 931, 1011 and 1041 m3 ha-1 y-1 from plots with PB, TER and CT treatments, respectively. The farmers‟ evaluation of crop performance in two years (2008 and 2009) showed a significantly higher score for PB (7/10) and least for CT (4.2/10). The NDVI of hanfets (2008) was significantly higher in PB (0.31) as compared to CT (0.27) 84 days after planting, while there was no difference at 59 days after planting. Although improvements in crop yield were observed, a period of at least four years of cropping was required before they became significant. Overall, the permanent raised bed and terwah tillage systems significantly reduced sediment loss and runoff, and increased crop yield. It is suggested that these tillage techniques, using the local plough without modifications, be implemented widely.".
- aggregation authorList BK216624.
- aggregation endPage "23".
- aggregation startPage "23".
- aggregation isDescribedBy 1185515.
- aggregation similarTo LU-1185515.