Claim · model-written summary
Phosphorus alone consistently increased cowpea grain yield across locations.
- Taxon
- Cowpea
Vigna unguiculatat0 - Treatment
- Pe0
- Outcome
- cowpea grain yielde0
- Direction
- increasede0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Inoculation and P either alone or in combination consistently increased cowpea grain yield across locations”
t0“Cowpea”
Title
Stephen Kyei-Boahen; Canon E. N. Savala; David Chikoye; et al. Frontiers in Plant Science 2017. doi:10.3389/fpls.2017.00646
Other claims from this paper (18)
- Observation Indigenous bradyrhizobia abundance across sites ranged from 5.27 x 102 to 1.07 x 103 cells g-1 soil.
- Intervention effect Inoculation increased cowpea nodule number by 34-76%.
- Intervention effect Inoculation doubled nodule dry weight, reported as 78 to 160 mg plant-1.
- Intervention effect Phosphorus application improved cowpea nodulation.
- Association Phosphorus application interacted positively with inoculant for nodulation.
- Intervention effect Inoculation increased cowpea shoot dry weight and shoot and grain nitrogen content across locations.
- Intervention effect Phosphorus increased cowpea shoot dry weight and shoot and grain nitrogen content across locations.
- Intervention effect Combined inoculant and phosphorus increased cowpea shoot dry weight and shoot and grain nitrogen content across locations.
- Observation Responses of pods per plant, seeds per pod and 100-seed weight were inconsistent across treatments and locations.
- Intervention effect Inoculated plants had consistently high shoot nitrogen content compared with non-inoculated controls.
- Intervention effect Plants receiving inoculant and phosphorus had consistently high shoot nitrogen content compared with non-inoculated controls.
- Intervention effect Shoot phosphorus uptake ranged from 1.72-3.77 g kg-1 and was higher with phosphorus fertilizer alone.
- Intervention effect Inoculation alone consistently increased cowpea grain yield across locations.
- Intervention effect Combined inoculant and phosphorus increased cowpea grain yield to 1674 kg ha-1, versus 1097 kg ha-1 for control.
- Observation Grain protein concentration ranged from 223-252 g kg-1 and followed the yield trend.
- Association Grain yield was negatively correlated with protein concentration.
- Recommendation The authors conclude that inoculant can improve cowpea yield and quality.
- Recommendation The authors conclude that phosphorus use is unattractive at the current fertilizer price.