Abstract
Soil salinity is a growing problem on many irrigated parts of arid and semi-arid areas of Ethiopia. Utilization of improved salt-tolerant forage grasses help farmers to maximize production and reclaim saline soil. A study was conducted at Werer Agricultural Research Center (WARC) from 2012 to 2014 to evaluate performance of four forage grass species of salinity tolerance, ameliorative effect and biomass production. The result showed that dry matter yield obtained under saline soil was higher in Cinchrus ciliaris (37 ton/ha/year) followed by Chloris gayana (36 ton/ha/year), while the smallest was recorded from Sorghum sudanese (27 ton/ha/year). After exposing for salt stress, C. gayana and C. ciliaris dry matter production relative to normal soil only decrease by 15 and 9%, respectively. While, Panicum antidotale and S. sudanese dry matter reduction was Severe, by 53 and 45%, respectively. Reduction in electrical conductivity (ECe) varied between 52.60 and 74.81% in the upper 0 to 30 cm soil layer and 54.76 to 79.63% in the lower 30 to 60 cm. The highest reduction percentage of salinity under surface (74.81%) and sub-surface (79.63%) layer soil occurred under C. gayana grass. C. ciliaris, P. antidotale and S. sudanese cause the reduction at surface soil layer ECe by 70.55, 66.42 and 54.76%, respectively. The same trend was observed for reduction of ESP and pHe as a result of growing of grass species. Generally, C. gayana and C. ciliaris have excellent potential for its high salinity stress tolerance, biomass production and ameliorative effect on soil properties. Key words: Salinity, amelioration, forage grasses, biomass yield.
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Claims 14
Claim · model-written summary
Cinchrus ciliaris produced 37 ton/ha/year dry matter under saline soil.
Verbatim
e0“dry matter yield obtained under saline soil was higher in Cinchrus ciliaris (37 ton/ha/year)”
Claim · model-written summary
Chloris gayana produced 36 ton/ha/year dry matter under saline soil.
- Taxon
- Chloris gayana
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Chloris gayanae0 - Outcome
- dry matter yielde1
- Value
- 36 ton/ha/yeare0
- Setting
- saline soile1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
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Verbatim
e0“followed by Chloris gayana (36 ton/ha/year)”
e1“dry matter yield obtained under saline soil”
Claim · model-written summary
Sorghum sudanese had the lowest dry matter yield, 27 ton/ha/year.
Verbatim
e0“the smallest was recorded from Sorghum sudanese (27 ton/ha/year)”
e1“dry matter yield obtained under saline soil”
Claim · model-written summary
C. gayana dry matter production fell 15% under salt stress relative to normal soil.
- Taxon
- C. gayanaChloris gayanae0
- Treatment
- salt stresse1
- Outcome
- dry matter productione0
- Direction
- decreasee0
- Value
- 15e0
- Comparator
- normal soile0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“C. gayana and C. ciliaris dry matter production relative to normal soil only decrease by 15 and 9%, respectively”
e1“salt stress”
Claim · model-written summary
C. ciliaris dry matter production fell 9% under salt stress relative to normal soil.
Verbatim
e0“C. gayana and C. ciliaris dry matter production relative to normal soil only decrease by 15 and 9%, respectively”
e1“salt stress”
Claim · model-written summary
Panicum antidotale dry matter production declined 53% under salt stress.
- Taxon
- Panicum antidotaleJanochloa antidotalee0
- Treatment
- salt stresse1
- Outcome
- dry matter reductione0
- Direction
- reductione0
- Value
- 53e0
Not reportedComparator
Verbatim
e0“Panicum antidotale and S. sudanese dry matter reduction was Severe, by 53 and 45%, respectively”
e1“salt stress”
Claim · model-written summary
S. sudanese dry matter production declined 45% under salt stress.
Not reportedComparator
Verbatim
e0“Panicum antidotale and S. sudanese dry matter reduction was Severe, by 53 and 45%, respectively”
e1“salt stress”
Claim · model-written summary
Growing C. gayana reduced surface soil salinity by 74.81%.
- Taxon
- C. gayanaChloris gayanae0
- Treatment
- C. gayana grasse0
- Outcome
- salinity under surfacee0
- Direction
- reductione0
- Value
- 74.81%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“highest reduction percentage of salinity under surface (74.81%) and sub-surface (79.63%) layer soil occurred under C. gayana grass”
Claim · model-written summary
Growing C. gayana reduced subsurface soil salinity by 79.63%.
- Taxon
- C. gayanaChloris gayanae0
- Treatment
- C. gayana grasse0
- Outcome
- salinity under surface (74.81%) and sub-surfacee0
- Direction
- reductione0
- Value
- 79.63%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“highest reduction percentage of salinity under surface (74.81%) and sub-surface (79.63%) layer soil occurred under C. gayana grass”
Claim · model-written summary
C. ciliaris reduced surface soil ECe by 70.55%.
- Taxon
- C. ciliarise0
- Treatment
- C. ciliarise0
- Outcome
- surface soil layer ECee0
- Direction
- reductione0
- Value
- 70.55e0
Not reportedComparator
Verbatim
e0“C. ciliaris, P. antidotale and S. sudanese cause the reduction at surface soil layer ECe by 70.55, 66.42 and 54.76%, respectively”
Claim · model-written summary
P. antidotale reduced surface soil ECe by 66.42%.
- Taxon
- P. antidotaleJanochloa antidotalee0
- Treatment
- P. antidotalee0
- Outcome
- surface soil layer ECee0
- Direction
- reductione0
- Value
- 66.42e0
Not reportedComparator
Verbatim
e0“C. ciliaris, P. antidotale and S. sudanese cause the reduction at surface soil layer ECe by 70.55, 66.42 and 54.76%, respectively”
Claim · model-written summary
S. sudanese reduced surface soil ECe by 54.76%.
- Taxon
- S. sudanesee0
- Treatment
- S. sudanesee0
- Outcome
- surface soil layer ECee0
- Direction
- reductione0
- Value
- 54.76%e0
Not reportedComparator
Verbatim
e0“C. ciliaris, P. antidotale and S. sudanese cause the reduction at surface soil layer ECe by 70.55, 66.42 and 54.76%, respectively”
Claim · model-written summary
Grass cultivation also reduced soil ESP and pHe.
Not reportedComparator
Verbatim
e0“The same trend was observed for reduction of ESP and pHe as a result of growing of grass species”
Claim · model-written summary
C. gayana and C. ciliaris were judged promising for salt tolerance, biomass and soil amelioration.
Verbatim
e0“C. gayana and C. ciliaris have excellent potential for its high salinity stress tolerance, biomass production and ameliorative effect on soil properties”
The same questions in other papers
salinity · growth · Janochloa antidotaleResults agree
3 papers in the same direction as this paper
- negative
- negative
- negative
salinity · yield · Chloris gayanaResults agree
3 papers in the same direction as this paper
- negative
- negative
- negative
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.