Abstract
SUMMARY Effectively nodulated cowpea plants, grown in pots without applied nitrogen, were vegetatively equal to non-nodulated plants supplied with 60 ppm N throughout growth (88 days) and produced significantly greater seed yields. Supplying non-nodulated plants with 120 or 240 ppm N improved seed yields (but not significantly) compared with plants completely dependent on symbiotic fixation. Nodulation promoted branching, and improved pod set and/or retention compared with plants relying on applied N.
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Claims 5
Claim · model-written summary
Effectively nodulated cowpea plants were vegetatively equal to non-nodulated plants supplied with 60 ppm N.
- Taxon
- cowpea
Vigna unguiculatae1 - Treatment
- Effectively nodulatede1
- Outcome
- vegetativelye1
- Direction
- equale1
- Comparator
- non-nodulated plants supplied with 60 ppm Ne1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Effectively nodulated cowpea plants, grown in pots without applied nitrogen, were vegetatively equal to non-nodulated plants supplied with 60 ppm N throughout growth (88 days) and produced significantly greater seed yields”
Claim · model-written summary
Effectively nodulated cowpea plants produced significantly greater seed yields than non-nodulated plants supplied with 60 ppm N.
- Taxon
- cowpeaVigna unguiculatae1
- Treatment
- Effectively nodulatede1
- Outcome
- seed yieldse1
- Direction
- greatere1
- Comparator
- non-nodulated plants supplied with 60 ppm Ne1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Effectively nodulated cowpea plants, grown in pots without applied nitrogen, were vegetatively equal to non-nodulated plants supplied with 60 ppm N throughout growth (88 days) and produced significantly greater seed yields”
Claim · model-written summary
Supplying non-nodulated cowpea plants with 120 or 240 ppm N improved seed yields, not significantly, compared with plants dependent on symbiotic fixation.
- Taxon
- cowpeaVigna unguiculatae1
- Treatment
- 120 or 240 ppm Ne2
- Outcome
- seed yieldse2
- Direction
- improvede2
- Comparator
- plants completely dependent on symbiotic fixatione2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Effectively nodulated cowpea plants, grown in pots without applied nitrogen, were vegetatively equal to non-nodulated plants supplied with 60 ppm N throughout growth (88 days) and produced significantly greater seed yields”
e2“Supplying non-nodulated plants with 120 or 240 ppm N improved seed yields (but not significantly) compared with plants completely dependent on symbiotic fixation”
Claim · model-written summary
Nodulation promoted branching in cowpea compared with plants relying on applied nitrogen.
- Taxon
- cowpeaVigna unguiculatae1
- Treatment
- Nodulatione3
- Outcome
- branchinge3
- Direction
- promotede3
- Comparator
- plants relying on applied Ne3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Effectively nodulated cowpea plants, grown in pots without applied nitrogen, were vegetatively equal to non-nodulated plants supplied with 60 ppm N throughout growth (88 days) and produced significantly greater seed yields”
e3“Nodulation promoted branching, and improved pod set and/or retention compared with plants relying on applied N”
Claim · model-written summary
Nodulation improved pod set and/or retention in cowpea compared with plants relying on applied nitrogen.
- Taxon
- cowpeaVigna unguiculatae1
- Treatment
- Nodulatione3
- Outcome
- pod set and/or retentione3
- Direction
- improvede3
- Comparator
- plants relying on applied Ne3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Effectively nodulated cowpea plants, grown in pots without applied nitrogen, were vegetatively equal to non-nodulated plants supplied with 60 ppm N throughout growth (88 days) and produced significantly greater seed yields”
e3“Nodulation promoted branching, and improved pod set and/or retention compared with plants relying on applied N”
The same questions in other papers
nitrogen · yield · Vigna unguiculata (cowpea)Results differ
61 papers in the same direction as this paper · 6 in the opposite direction
- no effect
- negative
- no effect
64 papers more in this group
See all 68 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.