Claim · model-written summary
Five year indicators and nitrogen accounted for most grain yield variability in the reduced model.
- Taxon
- winter wheat
Triticum aestivumt0 - Treatment
- Ne0
- Outcome
- variability in grain yielde0
- Qualifier
- five individual indicator years and N onlye0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingDirectionValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The reduced model from the regression analysis revealed that most of the variability in grain yield was accounted for by five individual indicator years and N only.”
t0“winter wheat”
Title
Kefyalew Girma; Kyle W. Freeman; Roger Teal; et al. Archives of Agronomy and Soil Science 2007. doi:10.1080/03650340701466754
Other claims from this paper (4)
- Observation Wheat grain yield had linear, quadratic and absent responses to nitrogen across years.
- Observation Wheat responded to phosphorus only in the first two study years.
- Recommendation The authors caution that nutrient response experiments may not predict next-year nitrogen needs.
- Association Yearly variation in yield and fertilizer response indicated dependence on factors beyond nitrogen and phosphorus.