Claim · model-written summary
Forage production did not consistently increase above 224 kg N ha−1.
- Taxon
- RYE–WHEAT–RYEGRASS
Lolium
Secale cereale
Triticum aestivumt0 - Treatment
- rates over 224 kg N ha−1e0
- Outcome
- forage productione0
- Direction
- No increasee0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.



Verbatim
e0“No increase in forage production has been consistently noted with rates over 224 kg N ha−1”
t0“RYE–WHEAT–RYEGRASS”
Title
W Altom; J. L. Rogers; W. R. Raun; et al. Journal of Plant Nutrition 2002. doi:10.1081/pln-120014075
Other claims from this paper (5)
- Intervention effect Annual nitrogen rates of at least 224 kg N ha−1 significantly accumulated surface NH4–N.
- Observation NH4–N did not differ at lower soil depths.
- Intervention effect At the highest N rate, nitrate N was significantly higher than checks down to 270 cm.
- Intervention effect At 224 kg N ha−1, the only stated adverse effect was increased NO3–N in the surface 90 cm.
- Recommendation The authors conclude recommended N fertilizer rates do not increase NO3–N leaching risk.