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Impact of conservation agriculture on runoff, soil loss and crop yield on a Vertisol in the northern Ethiopian highlands

Tesfay Araya Weldeslassie UGent, Wim Cornelis UGent, Jan Nyssen UGent, Bram Govaerts, Tewodros Gebregziabher, Tigist Oicha, Fekadu Getnet, Dirk Raes, Mitiku Haile and Ken D. Saire, et al. (2010) 19th World congress of soil science : soil solutions for a changing world : proceedings. p.93-96
abstract
Conservation Agriculture (CA) can be a possible technique to mitigate the reduction in soil quality, to reduce runoff and soil erosion, and can increase in situ moisture conservation, thereby increasing crop yield. This study was carried out on a rainfed field in Tigray, northern Ethiopia. The objective was to evaluate the impacts of CA on runoff and soil loss, and crop yield improvements. The CA practices were introduced on farmers' fields on vertisols since 2005. The experimental layout was arranged according to a randomized complete block design with two replicates. Treatments included conventional tillage (TRAD) which was ploughed 3 times and residue removed, Terwah (TERW) ploughed 3 times, residues removed and furrows made at 1.5 m distance, and permanent beds (PB) with 30% residue retention, zero tilled and 60 cm wide bed size. All the ploughing and reshaping of the furrows was done using the local ard plough maresha. Data on soil loss, runoff and grain yield were collected. The crops in rotation were wheat and teff. There was significant reduction (p<0.05) in runoff in PB under wheat in 2005, whereas the reduction was nonsignificant in 2006 and 2007. The soil loss was significantly lower in PB in 2005 and 2006. Soil loss in 2005 under wheat was reduced by 76% in PB and 61% in TERW as compared to TRAD. Similarly, the reduction in soil loss in 2006 under teff was 86% in PB and 53% in TERW. There was no significant difference (p<0.05) for wheat yield in 2005 and 2007. However, there was a significant difference among treatments in 2006 with higher teff yield in TRAD followed by TERW. In summary, permanent bed reduced soil loss and runoff and hence increased yield of wheat. Yield of teff was, however, reduced with permanent beds.
Please use this url to cite or link to this publication:
author
organization
year
type
conference
publication status
published
subject
keyword
permanent bed, Conservation agriculture, Terwah, crop residue, wheat, teff
in
19th World congress of soil science : soil solutions for a changing world : proceedings
editor
RJ Gilkes and Nattaporn Prakougkep
pages
93 - 96
publisher
International Union of Soil Sciences (IUSS)
conference name
19th World congress of Soil Science : Soil solutions for a changing world
conference location
Brisbane, QLD, Australia
conference start
2010-08-01
conference end
2010-08-06
ISBN
9780646537832
language
English
UGent publication?
yes
classification
C1
copyright statement
I have transferred the copyright for this publication to the publisher
id
2119488
handle
http://hdl.handle.net/1854/LU-2119488
date created
2012-05-30 09:33:57
date last changed
2015-06-17 10:03:23
@inproceedings{2119488,
  abstract     = {Conservation Agriculture (CA) can be a possible technique to mitigate the reduction in soil quality, to reduce runoff and soil erosion, and can increase in situ moisture conservation, thereby increasing crop yield. This study was carried out on a rainfed field in Tigray, northern Ethiopia. The objective was to evaluate the impacts of CA on runoff and soil loss, and crop yield improvements. The CA practices were introduced on farmers' fields on vertisols since 2005. The experimental layout was arranged according to a randomized complete block design with two replicates. Treatments included conventional tillage (TRAD) which was ploughed 3 times and residue removed, Terwah (TERW) ploughed 3 times, residues removed and furrows made at 1.5 m distance, and permanent beds (PB) with 30\% residue retention, zero tilled and 60 cm wide bed size. All the ploughing and reshaping of the furrows was done using the local ard plough maresha. Data on soil loss, runoff and grain yield were collected. The crops in rotation were wheat and teff. There was significant reduction (p{\textlangle}0.05) in runoff in PB under wheat in 2005, whereas the reduction was nonsignificant in 2006 and 2007. The soil loss was significantly lower in PB in 2005 and 2006. Soil loss in 2005 under wheat was reduced by 76\% in PB and 61\% in TERW as compared to TRAD. Similarly, the reduction in soil loss in 2006 under teff was 86\% in PB and 53\% in TERW. There was no significant difference (p{\textlangle}0.05) for wheat yield in 2005 and 2007. However, there was a significant difference among treatments in 2006 with higher teff yield in TRAD followed by TERW. In summary, permanent bed reduced soil loss and runoff and hence increased yield of wheat. Yield of teff was, however, reduced with permanent beds.},
  author       = {Araya Weldeslassie, Tesfay and Cornelis, Wim and Nyssen, Jan and Govaerts, Bram and Gebregziabher, Tewodros  and Oicha, Tigist and Getnet, Fekadu and Raes, Dirk and Haile, Mitiku and Saire, Ken D. and Deckers, Jozef},
  booktitle    = {19th World congress of soil science : soil solutions for a changing world : proceedings},
  editor       = {Gilkes, RJ and Prakougkep, Nattaporn},
  isbn         = {9780646537832},
  keyword      = {permanent bed,Conservation agriculture,Terwah,crop residue,wheat,teff},
  language     = {eng},
  location     = {Brisbane, QLD, Australia},
  pages        = {93--96},
  publisher    = {International Union of Soil Sciences (IUSS)},
  title        = {Impact of conservation agriculture on runoff, soil loss and crop yield on a Vertisol in the northern Ethiopian highlands},
  year         = {2010},
}

Chicago
Araya Weldeslassie, Tesfay, Wim Cornelis, Jan Nyssen, Bram Govaerts, Tewodros Gebregziabher, Tigist Oicha, Fekadu Getnet, et al. 2010. “Impact of Conservation Agriculture on Runoff, Soil Loss and Crop Yield on a Vertisol in the Northern Ethiopian Highlands.” In 19th World Congress of Soil Science : Soil Solutions for a Changing World : Proceedings, ed. RJ Gilkes and Nattaporn Prakougkep, 93–96. International Union of Soil Sciences (IUSS).
APA
Araya Weldeslassie, T., Cornelis, W., Nyssen, J., Govaerts, B., Gebregziabher, T., Oicha, T., Getnet, F., et al. (2010). Impact of conservation agriculture on runoff, soil loss and crop yield on a Vertisol in the northern Ethiopian highlands. In R. Gilkes & N. Prakougkep (Eds.), 19th World congress of soil science : soil solutions for a changing world : proceedings (pp. 93–96). Presented at the 19th World congress of Soil Science : Soil solutions for a changing world, International Union of Soil Sciences (IUSS).
Vancouver
1.
Araya Weldeslassie T, Cornelis W, Nyssen J, Govaerts B, Gebregziabher T, Oicha T, et al. Impact of conservation agriculture on runoff, soil loss and crop yield on a Vertisol in the northern Ethiopian highlands. In: Gilkes R, Prakougkep N, editors. 19th World congress of soil science : soil solutions for a changing world : proceedings. International Union of Soil Sciences (IUSS); 2010. p. 93–6.
MLA
Araya Weldeslassie, Tesfay, Wim Cornelis, Jan Nyssen, et al. “Impact of Conservation Agriculture on Runoff, Soil Loss and Crop Yield on a Vertisol in the Northern Ethiopian Highlands.” 19th World Congress of Soil Science : Soil Solutions for a Changing World : Proceedings. Ed. RJ Gilkes & Nattaporn Prakougkep. International Union of Soil Sciences (IUSS), 2010. 93–96. Print.