Claim · model-written summary
SPAD management reduced application rates under conducive conditions.
- Taxon
- Potato
Solanum tuberosumt0 - Treatment
- SPAD‐502 sensore0
- Outcome
- application ratese0
- Direction
- reducinge0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SPAD‐502 sensor was efficient for detecting plant N status when environmental conditions were more conducive for potato production and optimized N management by reducing application rates”
t0“potato”
Title
Chlorophyll meter‐based leaf nitrogen status to manage nitrogen in tropical potato production
Fabiana M. Fernandes; Rogério P. Soratto; Adalton M. Fernandes; et al. Agronomy Journal 2021. doi:10.1002/agj2.20589
Other claims from this paper (9)
- Observation Tuber yields were similar under the two SPAD nitrogen managements.
- Intervention effect Under favorable rainfall, SPAD management reduced nitrogen applications by 38–63%.
- Intervention effect Under favorable rainfall, SPAD management gave comparable tuber set, bulking, and yield.
- Intervention effect At the 90% NSI threshold, SPAD management improved potato nitrogen-uptake efficiency.
- Intervention effect At the 90% NSI threshold, SPAD management improved tuber yield per unit nitrogen.
- Method / resource SPAD-502 detected plant nitrogen status under conducive conditions.
- Method / resource With unfavorable weather, SPAD readings failed to guide proper nitrogen fertilization.
- Intervention effect Under unfavorable weather and rainfall, SPAD management reduced tuber yield.
- Recommendation Authors recommend a more accurate nitrogen-status method under unfavorable conditions.