Abstract
Abstract: Reduced tillage and maintenance of ground cover with crop residues may increase water availability to the crop in semi-arid areas of Ethiopia. Conventional, tied-ridging and zero-tillage were compared with 0, 3 1 and 6 mg ha of tef straw applied after tillage. The interaction of tillage and straw application rate was 1 significant for grain yield with 70 and 46 % increases in yield with 3 mg ha of straw applied for conventional and zero tillage respectively, but yield with tied-ridging was not affected by straw application. The main effect of tillage on yield was not significant. Mean stover yield was also increased with straw application. Mean soil water throughout the season was nearly 20 % more with tied-ridging than with other tillage practices and about 1 16 % more with 3 mg ha straw applied as compared to no straw applied. Grain produced per unit of water used increased linearly with straw application rate and was less for zero tillage and for tied-ridging or conventional tillage. Tied-ridging is the most promising tillage practice and ground cover with crop residues is necessary to achieve acceptable yield with zero tillage. Key words: Conservation tillage reduced tillage tef straw
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Claims 11
Claim · model-written summary
Three mg ha of straw increased sorghum grain yield by 70% under conventional tillage.
SorghumNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“70 and 46 % increases in yield with 3 mg ha of straw applied for conventional and zero tillage respectively”
t0“of Sorghum (Sorghum bicolor (L.) Moench)”
Claim · model-written summary
Three mg ha of straw increased sorghum grain yield by 46% under zero tillage.
- Treatment
- 3 mg ha of straw applied for conventional and zero tillagee0
- Outcome
- yielde0
- Direction
- increasese0
- Value
- 46 %e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“70 and 46 % increases in yield with 3 mg ha of straw applied for conventional and zero tillage respectively”
t0“of Sorghum (Sorghum bicolor (L.) Moench)”
Claim · model-written summary
Straw application did not affect yield under tied-ridging.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“yield with tied-ridging was not affected by straw application”
t0“of Sorghum (Sorghum bicolor (L.) Moench)”
Claim · model-written summary
Tillage had no significant main effect on yield.
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The main effect of tillage on yield was not significant.”
t0“of Sorghum (Sorghum bicolor (L.) Moench)”
Claim · model-written summary
Straw application increased mean stover yield.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mean stover yield was also increased with straw application.”
t0“of Sorghum (Sorghum bicolor (L.) Moench)”
Claim · model-written summary
Tied-ridging produced nearly 20% more mean soil water than other tillage practices.
- Treatment
- tied-ridginge0
- Outcome
- Mean soil watere0
- Direction
- moree0
- Value
- 20 %e0
- Comparator
- other tillage practicese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mean soil water throughout the season was nearly 20 % more with tied-ridging than with other tillage practices”
t0“of Sorghum (Sorghum bicolor (L.) Moench)”
Claim · model-written summary
Three mg ha straw produced about 16% more mean soil water than no straw.
- Treatment
- 3 mg ha straw appliede0
- Outcome
- soil watere0
- Direction
- moree0
- Value
- 16 %e0
- Comparator
- no straw appliede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mean soil water throughout the season was nearly 20 % more with tied-ridging than with other tillage practices and about 1 16 % more with 3 mg ha straw applied as compared to no straw applied”
t0“of Sorghum (Sorghum bicolor (L.) Moench)”
Claim · model-written summary
Grain produced per unit water used increased linearly with straw application rate.
- Treatment
- straw application ratee0
- Outcome
- Grain produced per unit of water usede0
- Direction
- increased linearlye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Grain produced per unit of water used increased linearly with straw application rate”
t0“of Sorghum (Sorghum bicolor (L.) Moench)”
Claim · model-written summary
Grain produced per unit water used was lower under zero tillage than under tied-ridging or conventional tillage.
- Treatment
- zero tillagee0
- Outcome
- Grain produced per unit of water usede0
- Direction
- lesse0
- Comparator
- tied-ridging or conventional tillagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Grain produced per unit of water used increased linearly with straw application rate and was less for zero tillage and for tied-ridging or conventional tillage”
t0“of Sorghum (Sorghum bicolor (L.) Moench)”
Claim · model-written summary
The authors identify tied-ridging as the most promising tillage practice.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tied-ridging is the most promising tillage practice”
t0“of Sorghum (Sorghum bicolor (L.) Moench)”
Claim · model-written summary
The authors recommend crop residue ground cover for acceptable yield with zero tillage.
- Outcome
- ground cover with crop residues is necessary to achieve acceptable yield with zero tillagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ground cover with crop residues is necessary to achieve acceptable yield with zero tillage”
t0“of Sorghum (Sorghum bicolor (L.) Moench)”
The same questions in other papers
tillage · yield · SorghumResults differ
101 papers in the same direction as this paper · 17 in the opposite direction · 4 reporting no difference from an alternative
- positive
- negative
- negative
119 papers more in this group
See all 123 papers →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.