Abstract
Abstract Percent nitrogen (N) in peanut leaves (Arachis hypogaea L.) is known to decline as the season progresses. If leaf N drops below the critical level for maximum photosynthesis, the yield potential for that crop will decrease. In an attempt to increase leaf N, several studies were conducted during 1979, 1980, and 1981 at two locations in the state of Georgia, USA. Both inoculation and N fertilization of the peanut cv. Florunner failed to increase either ZN in the plant (shoot and fruit composite). Although strains of Bradyrhizobium showed a wide range of effectiveness (total N accumulation in the plant) in controlled environment conditions, no significant differences were seen in field studies. Discrepancies between these studies could be due to poor nodule occupancy of the introduced strains of Bradyrhizobium in the field studies or to differences in strain performance due to environment. Post‐emergence treatments of urea or Ca(NO3)2 fertilizers also failed to increase either %N in the plant tissue or pod yield. A slight non‐significant reduction in nodule weight/plant due to N fertilization was measured; urea decreased nodule weight less than Ca(NO3)2.
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Claims 10
Claim · model-written summary
Inoculation did not increase plant nitrogen in Florunner peanut.
- Taxon
- peanut
Arachis hypogaeae0 - Material
- Florunnere0
- Treatment
- inoculatione0
- Outcome
- ZN in the plant (shoot and fruit composite)e0
- Direction
- failed to increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both inoculation and N fertilization of the peanut cv. Florunner failed to increase either ZN in the plant (shoot and fruit composite)”
Claim · model-written summary
Nitrogen fertilization did not increase plant nitrogen in Florunner peanut.
- Taxon
- peanutArachis hypogaeae0
- Material
- Florunnere0
- Treatment
- N fertilizatione0
- Outcome
- ZN in the plant (shoot and fruit composite)e0
- Direction
- failed to increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both inoculation and N fertilization of the peanut cv. Florunner failed to increase either ZN in the plant (shoot and fruit composite)”
Claim · model-written summary
Bradyrhizobium strains varied in total plant N accumulation in controlled conditions.
- Taxon
- peanutArachis hypogaeat0
- Interactor
- Bradyrhizobium
Bradyrhizobiume0symbiont - Outcome
- total N accumulation in the plante0
- Setting
- controlled environment conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“strains of Bradyrhizobium showed a wide range of effectiveness (total N accumulation in the plant) in controlled environment conditions”
t0“peanut”
Claim · model-written summary
Bradyrhizobium strains showed no significant field differences.
- Taxon
- peanutArachis hypogaeat0
- Interactor
- BradyrhizobiumBradyrhizobiume0symbiont
- Outcome
- differencese0
- Setting
- field studiese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“strains of Bradyrhizobium showed a wide range of effectiveness (total N accumulation in the plant) in controlled environment conditions, no significant differences were seen in field studies”
t0“peanut”
Claim · model-written summary
Post emergence urea did not increase plant tissue nitrogen.
- Taxon
- peanutArachis hypogaeat0
- Treatment
- ureae0
- Outcome
- %N in the plant tissuee0
- Direction
- failed to increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Post‐emergence treatments of urea or Ca(NO3)2 fertilizers also failed to increase either %N in the plant tissue or pod yield”
t0“peanut”
Claim · model-written summary
Post emergence Ca(NO3)2 did not increase plant tissue nitrogen.
- Taxon
- peanutArachis hypogaeat0
- Treatment
- Ca(NO3)2 fertilizerse0
- Outcome
- %N in the plant tissuee0
- Direction
- failed to increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Post‐emergence treatments of urea or Ca(NO3)2 fertilizers also failed to increase either %N in the plant tissue or pod yield”
t0“peanut”
Claim · model-written summary
Post emergence urea did not increase pod yield.
- Taxon
- peanutArachis hypogaeat0
- Treatment
- ureae0
- Outcome
- pod yielde0
- Direction
- failed to increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Post‐emergence treatments of urea or Ca(NO3)2 fertilizers also failed to increase either %N in the plant tissue or pod yield”
t0“peanut”
Claim · model-written summary
Post emergence Ca(NO3)2 did not increase pod yield.
- Taxon
- peanutArachis hypogaeat0
- Treatment
- Ca(NO3)2 fertilizerse0
- Outcome
- pod yielde0
- Direction
- failed to increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Post‐emergence treatments of urea or Ca(NO3)2 fertilizers also failed to increase either %N in the plant tissue or pod yield”
t0“peanut”
Claim · model-written summary
Nitrogen fertilization slightly and nonsignificantly reduced nodule weight per plant.
- Taxon
- peanutArachis hypogaeat0
- Treatment
- N fertilizatione0
- Outcome
- nodule weight/plante0
- Direction
- reductione0
- Qualifier
- slighte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A slight non‐significant reduction in nodule weight/plant due to N fertilization was measured”
t0“peanut”
Claim · model-written summary
Urea decreased nodule weight less than Ca(NO3)2.
- Taxon
- peanutArachis hypogaeat0
- Treatment
- ureae0
- Outcome
- nodule weighte0
- Direction
- decreasede0
- Comparator
- Ca(NO3)2e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“urea decreased nodule weight less than Ca(NO3)2”
t0“peanut”
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