Abstract
Methods which improve the nutrient status of pigeonpea plants without the addition of expensive commercial fertilizer can benefit farmers in the Caribbean and other tropical areas. Yields of this grain legume have been shown to increase significantly when the crop received adequate nutrition. Studies were conducted to evaluate the nutrient status of pigeonpea plants treated with various combinations of nitrogen fertilizer levels and Rhizobium inoculants. Rhizobium strains influenced nitrogen content of plants grown at two Antigua sites. Plants treated with strain 3384 produced nodules which were more effective nitrogen fixers than other strains tested. This resulted in higher levels of nitrogen in the stems and leav es of the tested plants. Plots treated with 45 kg/ha nitrogen showed significant reduction in nodulation. Shoot accumulation of P, K. Ca and Al was influenced by Rhizobium inoculation. Plants treated with Strain 3384 had the highest P and K accumulation and those receiving no inoculum had the highest Al content.
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Claims 8
Claim · model-written summary
Rhizobium strains influenced the nitrogen content of pigeonpea plants at two Antigua sites.
- Taxon
- PIGEONPEA
Cajanus cajant0 - Treatment
- Rhizobium strainse1
- Interactor
- Rhizobium strainse1symbiont
- Outcome
- nitrogen contente1
- Setting
- two Antigua sitese1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“PIGEONPEA (CAJANUS CAJAN (L) MILLSP.)”
e1“Rhizobium strains influenced nitrogen content of plants grown at two Antigua sites”
Claim · model-written summary
Pigeonpea treated with strain 3384 produced nodules that were more effective nitrogen fixers than other strains tested.
- Taxon
- PIGEONPEACajanus cajant0
- Organ / stage
- nodulese2
- Treatment
- strain 3384e2
- Interactor
- strain 3384e2symbiont
- Outcome
- effective nitrogen fixerse2
- Direction
- more effectivee2
- Comparator
- other strains testede2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“PIGEONPEA (CAJANUS CAJAN (L) MILLSP.)”
e2“Plants treated with strain 3384 produced nodules which were more effective nitrogen fixers than other strains tested”
Claim · model-written summary
Strain 3384 gave higher nitrogen levels in the stems and leaves of pigeonpea.
- Taxon
- PIGEONPEACajanus cajant0
- Organ / stage
- stems and leavese3
- Treatment
- strain 3384e2
- Interactor
- strain 3384e2symbiont
- Outcome
- levels of nitrogene3
- Direction
- highere3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“PIGEONPEA (CAJANUS CAJAN (L) MILLSP.)”
e2“Plants treated with strain 3384 produced nodules which were more effective nitrogen fixers than other strains tested”
e3“This resulted in higher levels of nitrogen in the stems and leaves of the tested plants”
Claim · model-written summary
Nitrogen fertilizer at 45 kg/ha significantly reduced nodulation in pigeonpea.
- Taxon
- PIGEONPEACajanus cajant0
- Treatment
- 45 kg/ha nitrogene4
- Outcome
- nodulatione4
- Direction
- reductione4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“PIGEONPEA (CAJANUS CAJAN (L) MILLSP.)”
e4“Plots treated with 45 kg/ha nitrogen showed significant reduction in nodulation”
Claim · model-written summary
Rhizobium inoculation influenced shoot accumulation of P, K and Ca in pigeonpea.
- Taxon
- PIGEONPEACajanus cajant0
- Treatment
- Rhizobium inoculatione5
- Interactor
- Rhizobium inoculatione5symbiont
- Outcome
- Shoot accumulation of P, K. Cae5
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“PIGEONPEA (CAJANUS CAJAN (L) MILLSP.)”
e5“Shoot accumulation of P, K. Ca and Al was influenced by Rhizobium inoculation”
Claim · model-written summary
Rhizobium inoculation influenced shoot Al accumulation in pigeonpea.
- Taxon
- PIGEONPEACajanus cajant0
- Treatment
- Rhizobium inoculatione5
- Interactor
- Rhizobium inoculatione5symbiont
- Outcome
- Ale5
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“PIGEONPEA (CAJANUS CAJAN (L) MILLSP.)”
e5“Shoot accumulation of P, K. Ca and Al was influenced by Rhizobium inoculation”
Claim · model-written summary
Strain 3384 gave the highest P and K accumulation in pigeonpea shoots.
- Taxon
- PIGEONPEACajanus cajant0
- Treatment
- Strain 3384e6
- Interactor
- Strain 3384e6symbiont
- Outcome
- P and K accumulatione6
- Direction
- higheste6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“PIGEONPEA (CAJANUS CAJAN (L) MILLSP.)”
e6“Plants treated with Strain 3384 had the highest P and K accumulation”
Claim · model-written summary
Pigeonpea receiving no inoculum had the highest Al content.
- Taxon
- PIGEONPEACajanus cajant0
- Treatment
- no inoculume7
- Outcome
- Al contente7
- Direction
- higheste7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“PIGEONPEA (CAJANUS CAJAN (L) MILLSP.)”
e7“and those receiving no inoculum had the highest Al content”
The same questions in other papers
inoculation · molecular: metabolites · Cajanus cajan (pigeon pea)Positive and negative results
3 in the opposite direction
- positive
- positive
- positive
nitrogen · symbiosis · Cajanus cajan (pigeon pea)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- positive
- no effect
- 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.