Abstract
Abstract The yield and flux of nitrous oxide (N 2 O) emitted from continuous cereals (with and without urea), legumes/cereal in rotation and cereal/legume in rotation all with or without organic manure was monitored from January 2004 to February 2005. All treatments except continuous cereals had phosphate added. The cereal grown July–October in 2003 and 2004 was pearl millet ( Pennisetum glaucum) and the legume was a bean ( Phaseolus vulgaris ). The 10 m × 10 m plots were established in a semi‐arid climate in Mali. The addition of organic manure and both inorganic fertilizers increased yield and N 2 O emissions. Continuous cereals treated with both organic manure and urea emitted significantly less N 2 O (882 g N/ha per year) than plots receiving no organic manure(1535 g N/ha per year). Growing N‐fixing crops in rotation did not significantly increase N 2 O emissions. This study supports the new practice of growing cereal and legumes in rotation as an environmentally sustainable system in semi‐arid Mali.
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Claims 5
Claim · model-written summary
Adding organic manure and both inorganic fertilizers increased yield in the cropping systems in semi-arid Mali.
- Taxon
- pearl millet
Cenchrus americanuse2 - Treatment
- addition of organic manure and both inorganic fertilizerse1
- Outcome
- yielde1
- Direction
- increasede1
- Setting
- Malie3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The addition of organic manure and both inorganic fertilizers increased yield and N 2 O emissions”
e2“The cereal grown July–October in 2003 and 2004 was pearl millet ( Pennisetum glaucum) and the legume was a bean ( Phaseolus vulgaris )”
e3“established in a semi‐arid climate in Mali”
Claim · model-written summary
Adding organic manure and both inorganic fertilizers increased N2O emissions in the cropping systems in semi-arid Mali.
- Taxon
- pearl milletCenchrus americanuse2
- Treatment
- addition of organic manure and both inorganic fertilizerse1
- Outcome
- N 2 O emissionse1
- Direction
- increasede1
- Setting
- Malie3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The addition of organic manure and both inorganic fertilizers increased yield and N 2 O emissions”
e2“The cereal grown July–October in 2003 and 2004 was pearl millet ( Pennisetum glaucum) and the legume was a bean ( Phaseolus vulgaris )”
e3“established in a semi‐arid climate in Mali”
Claim · model-written summary
Continuous cereals treated with organic manure and urea emitted significantly less N2O (882 g N/ha per year) than plots without organic manure (1535 g N/ha per year).
- Taxon
- pearl milletCenchrus americanuse2
- Treatment
- organic manure and ureae1
- Outcome
- N 2 Oe1
- Direction
- lesse1
- Value
- 882 g N/ha per yeare1
- Qualifier
- 1535 g N/ha per yeare1
- Comparator
- plots receiving no organic manuree1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Continuous cereals treated with both organic manure and urea emitted significantly less N 2 O (882 g N/ha per year) than plots receiving no organic manure(1535 g N/ha per year)”
e2“The cereal grown July–October in 2003 and 2004 was pearl millet ( Pennisetum glaucum) and the legume was a bean ( Phaseolus vulgaris )”
Claim · model-written summary
Growing N-fixing crops in rotation did not significantly increase N2O emissions.
- Taxon
- beane2
- Treatment
- Growing N‐fixing crops in rotatione1
- Outcome
- N 2 O emissionse1
- Direction
- did not significantly increasee1
Not reportedComparator
Verbatim
e1“Growing N‐fixing crops in rotation did not significantly increase N 2 O emissions”
e2“The cereal grown July–October in 2003 and 2004 was pearl millet ( Pennisetum glaucum) and the legume was a bean ( Phaseolus vulgaris )”
Claim · model-written summary
The study supports growing cereals and legumes in rotation as an environmentally sustainable system in semi-arid Mali.
- Taxon
- pearl milletCenchrus americanuse2
- Outcome
- growing cereal and legumes in rotation as an environmentally sustainable systeme1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“This study supports the new practice of growing cereal and legumes in rotation as an environmentally sustainable system”
e2“The cereal grown July–October in 2003 and 2004 was pearl millet ( Pennisetum glaucum) and the legume was a bean ( Phaseolus vulgaris )”
The same questions in other papers
organic · yield · Cenchrus americanus (pearl millet)Positive and negative results
27 papers in the same direction as this paper · 2 in the opposite direction · 1 reporting no difference from an alternative
- no effect
- no effect
- no effect
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See all 31 papers →fertilization · yield · Cenchrus americanus (pearl millet)Positive and negative results
248 papers in the same direction as this paper · 9 in the opposite direction · 1 reporting no difference from an alternative
- no effect
- negative
- no effect
255 papers more in this group
See all 259 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.