Abstract
A field experiment was conducted in the Experimental Research Farm of Omdurman Islamic University, Sudan to determine short-term effect of irrigation intervals (7 and 10 days) and sun-dried or composted sewage sludge, recommended mineral fertilizer on straw dry matter yield (SDMY) and N, P and K content of fodder sorghum and soil properties. In the 7 and 10 days irrigation intervals, composted, sun-dried sludge and mineral fertilizer have significantly increased SDMY over the control by 51, 98, 67 and 78, 19, 33%, respectively. Apparent N use efficiency (ANUE) in composted and sun dried plots irrigated at either 7 or 10 days was 9 - 36 and 16 - 74%, respectively. Reducing the irrigation interval has significantly increased salinity by 13%. Increasing irrigation interval has decreased bulk density by 5%. It could be concluded that, application of composted sludge is a useful practice for improvement of soil properties and consequent yield increase.
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Claims 11
Claim · model-written summary
Composted sewage sludge increased straw dry matter yield by 51% under 7-day irrigation.
Verbatim
e0“In the 7 and 10 days irrigation intervals, composted, sun-dried sludge and mineral fertilizer have significantly increased SDMY over the control by 51, 98, 67 and 78, 19, 33%, respectively.”
e1“fodder sorghum”
Claim · model-written summary
Sun-dried sludge increased straw dry matter yield by 98% under 7-day irrigation.
Verbatim
e0“In the 7 and 10 days irrigation intervals, composted, sun-dried sludge and mineral fertilizer have significantly increased SDMY over the control by 51, 98, 67 and 78, 19, 33%, respectively.”
e1“fodder sorghum”
Claim · model-written summary
Mineral fertilizer increased straw dry matter yield by 67% under 7-day irrigation.
Verbatim
e0“In the 7 and 10 days irrigation intervals, composted, sun-dried sludge and mineral fertilizer have significantly increased SDMY over the control by 51, 98, 67 and 78, 19, 33%, respectively.”
e1“fodder sorghum”
Claim · model-written summary
Composted sewage sludge increased straw dry matter yield by 78% under 10-day irrigation.
Verbatim
e0“In the 7 and 10 days irrigation intervals, composted, sun-dried sludge and mineral fertilizer have significantly increased SDMY over the control by 51, 98, 67 and 78, 19, 33%, respectively.”
e1“fodder sorghum”
Claim · model-written summary
Sun-dried sludge increased straw dry matter yield by 19% under 10-day irrigation.
Verbatim
e0“In the 7 and 10 days irrigation intervals, composted, sun-dried sludge and mineral fertilizer have significantly increased SDMY over the control by 51, 98, 67 and 78, 19, 33%, respectively.”
e1“fodder sorghum”
Claim · model-written summary
Mineral fertilizer increased straw dry matter yield by 33% under 10-day irrigation.
Verbatim
e0“In the 7 and 10 days irrigation intervals, composted, sun-dried sludge and mineral fertilizer have significantly increased SDMY over the control by 51, 98, 67 and 78, 19, 33%, respectively.”
e1“fodder sorghum”
Claim · model-written summary
Apparent nitrogen use efficiency was 9–36% in composted plots across irrigation intervals.
Verbatim
e0“Apparent N use efficiency (ANUE) in composted and sun dried plots irrigated at either 7 or 10 days was 9 - 36 and 16 - 74%, respectively.”
e1“fodder sorghum”
Claim · model-written summary
Apparent nitrogen use efficiency was 16–74% in sun-dried plots across irrigation intervals.
Verbatim
e0“Apparent N use efficiency (ANUE) in composted and sun dried plots irrigated at either 7 or 10 days was 9 - 36 and 16 - 74%, respectively.”
e1“fodder sorghum”
Claim · model-written summary
Reducing the irrigation interval increased soil salinity by 13%.
- Taxon
- fodder sorghume1
- Treatment
- Reducing the irrigation intervale0
- Outcome
- salinitye0
- Direction
- increasede0
- Value
- 13%e0
Not reportedComparator
Verbatim
e0“Reducing the irrigation interval has significantly increased salinity by 13%.”
e1“fodder sorghum”
Claim · model-written summary
Increasing the irrigation interval decreased soil bulk density by 5%.
- Taxon
- fodder sorghume1
- Treatment
- Increasing irrigation intervale0
- Outcome
- bulk densitye0
- Direction
- decreasede0
- Value
- 5%e0
Not reportedComparator
Verbatim
e0“Increasing irrigation interval has decreased bulk density by 5%.”
e1“fodder sorghum”
Claim · model-written summary
The authors recommend composted sludge to improve soil properties and yield.
Verbatim
e0“application of composted sludge is a useful practice for improvement of soil properties and consequent yield increase.”
e1“fodder sorghum”
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See all 446 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.