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Short-term effects of conservation tillage on soil (Vertisol) and crop (teff, Eragrostis tef) attributes in the northern Ethiopian highlands

Tigist Oicha, Wim Cornelis UGent, Hubert Verplancke UGent, Jan Nyssen UGent, Bram Govaerts, Mintesinot Behailu, Mitiku Hailu and Jozef Deckers (2010) 19th World congress of soil science : soil solutions for a changing world : proceedings. p.149-152
abstract
A conservation agriculture (CA) experiment was conducted in 2006 at Adigudom, Tigray, Northern Ethiopia, on experimental plots established in 2005 on a farmer’s field. The objectives of this experiment were to evaluate the short term changes in soil quality of a Vertisol due to the implementation of conservation agriculture practices and to assess their effect on runoff and soil loss (not reported here), crop yield and yield components of teff (Eragrostis tef (Zucc.) Trotter). The treatments were permanent bed (PB), terwah (TERW) and conventional tillage (TRAD). Soil organic matter (SOM) was significantly higher in PB (2.49 %) compared to TRAD (2.33 %) and TERW (2.36 %). Although aggregate stability of PB (0.94) was higher than TRAD (0.83), the difference was not significant. PB had larger macroporosity (0.07) compared to the other treatments. The other soil physical quality parameters analysed showed, however, inconsistency between treatments. Moreover the plant available water content of all treatments was similar. Despite the above soil physical properties improvements, which most probably resulted in higher soil water storage in PB than in the other treatments, yield, biomass and plant height of teff were significantly higher in TRAD than PB. The significantly high weed dry matter at first weeding in PB, the types of weeds and their water uptake behaviour may have caused the reduced teff yield. Herbicides must be used while growing teff in CA experiments.
Please use this url to cite or link to this publication:
author
organization
year
type
conference
publication status
published
subject
keyword
Conservation agriculture, permanent bed, aggregate stability, runoff, teff., soil loss
in
19th World congress of soil science : soil solutions for a changing world : proceedings
editor
RJ Gilkes and Nattaporn Prakougkep
pages
149 - 152
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
2119628
handle
http://hdl.handle.net/1854/LU-2119628
date created
2012-05-30 09:46:33
date last changed
2012-06-04 15:36:01
@inproceedings{2119628,
  abstract     = {A conservation agriculture (CA) experiment was conducted in 2006 at Adigudom, Tigray, Northern Ethiopia, on experimental plots established in 2005 on a farmer{\textquoteright}s field. The objectives of this experiment were to evaluate the short term changes in soil quality of a Vertisol due to the implementation of conservation agriculture practices and to assess their effect on runoff and soil loss (not reported here), crop yield and yield components of teff (Eragrostis tef (Zucc.) Trotter). The treatments were permanent bed (PB), terwah (TERW) and conventional tillage (TRAD). Soil organic matter (SOM) was significantly higher in PB (2.49 \%) compared to TRAD (2.33 \%) and TERW (2.36 \%). Although aggregate stability of PB (0.94) was higher than TRAD (0.83), the difference was not significant. PB had larger macroporosity (0.07) compared to the other treatments. The other soil physical quality parameters analysed showed, however, inconsistency between treatments. Moreover the plant available water content of all treatments was similar. Despite the above soil physical properties improvements, which most probably resulted in higher soil water storage in PB than in the other treatments, yield, biomass and plant height of teff were significantly higher in TRAD than PB. The significantly high weed dry matter at first weeding in PB, the types of weeds and their water uptake behaviour may have caused the reduced teff yield. Herbicides must be used while growing teff in CA experiments.},
  author       = {Oicha, Tigist and Cornelis, Wim and Verplancke, Hubert and Nyssen, Jan and Govaerts, Bram and Behailu, Mintesinot and Hailu, Mitiku 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      = {Conservation agriculture,permanent bed,aggregate stability,runoff,teff.,soil loss},
  language     = {eng},
  location     = {Brisbane, QLD, Australia},
  pages        = {149--152},
  publisher    = {International Union of Soil Sciences (IUSS)},
  title        = {Short-term effects of conservation tillage on soil (Vertisol) and crop (teff, Eragrostis tef) attributes in the northern Ethiopian highlands},
  year         = {2010},
}

Chicago
Oicha, Tigist, Wim Cornelis, Hubert Verplancke, Jan Nyssen, Bram Govaerts, Mintesinot Behailu, Mitiku Hailu, and Jozef Deckers. 2010. “Short-term Effects of Conservation Tillage on Soil (Vertisol) and Crop (teff, Eragrostis Tef) Attributes 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, 149–152. International Union of Soil Sciences (IUSS).
APA
Oicha, T., Cornelis, W., Verplancke, H., Nyssen, J., Govaerts, B., Behailu, M., Hailu, M., et al. (2010). Short-term effects of conservation tillage on soil (Vertisol) and crop (teff, Eragrostis tef) attributes 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. 149–152). Presented at the 19th World congress of Soil Science : Soil solutions for a changing world, International Union of Soil Sciences (IUSS).
Vancouver
1.
Oicha T, Cornelis W, Verplancke H, Nyssen J, Govaerts B, Behailu M, et al. Short-term effects of conservation tillage on soil (Vertisol) and crop (teff, Eragrostis tef) attributes 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. 149–52.
MLA
Oicha, Tigist, Wim Cornelis, Hubert Verplancke, et al. “Short-term Effects of Conservation Tillage on Soil (Vertisol) and Crop (teff, Eragrostis Tef) Attributes 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. 149–152. Print.