Claim · model-written summary
100% NPK gave the highest chlorophyll content (SPAD = 54) in Kano.
- Taxon
- cowpea
Vigna unguiculatat0 - Treatment
- 100% NPKe2
- Outcome
- chlorophyll contente2
- Direction
- higheste2
- Value
- SPAD = 54e2
- Qualifier
- p < 0.05e2
- Setting
- Kanoe2
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cowpea (Vigna unguiculata [L.] Walp)”
e2“The 100% NPK treatment produced the highest chlorophyll content (SPAD = 54, p < 0.05) and stem girth (8.2 mm, p < 0.05) in Kano”
Title
Shittu, E. A.; Adnan, A. A.; Abdulraham, B. L.; et al. African Journal of Agricultural Science and Food Research 2025. doi:10.62154/ajasfr.2025.020.01025
Other claims from this paper (10)
- Intervention effect The 50% NPK/50% Carbontilizer treatment outperformed other treatments in grain yield (1.63 t/ha).
- Intervention effect The 50% NPK/50% Carbontilizer treatment outperformed other treatments in stover weight (3.12 t/ha).
- Intervention effect The 50% NPK/50% Carbontilizer treatment outperformed other treatments in pod weight (2.85 t/ha).
- Intervention effect 100% NPK gave the highest stem girth (8.2 mm) in Kano.
- Intervention effect Soil organic carbon increased under the 50% NPK/50% Carbontilizer treatment (0.45% to 0.69%).
- Intervention effect 100% Carbontilizer gave the highest rise in soil phosphorus (4.75 to 7.34 mg/kg).
- Observation Soil pH remained slightly acidic (5.79–5.94) across treatments.
- Observation Lead concentration was within WHO safety thresholds (Pb = 0.002 mg/kg).
- Observation Cadmium concentration was within WHO safety thresholds (Cd = 0.002 mg/kg).
- Recommendation Integrating coal-based organic fertilizer with mineral nutrients is recommended to enhance cowpea productivity and improve soil health.