Claim · model-written summary
Yield differences between the two highest nitrogen levels were small and nonsignificant.
- Taxon
- winter wheat, winter barley, and potatoes
Solanum tuberosum.jpg?width=60)
Hordeum vulgare
Triticum aestivumt0 - Treatment
- two highest N levelse0
- Outcome
- yield differencese0
- Direction
- smalle0
- Qualifier
- not significante0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
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Verbatim
e0“The yield differences between the two highest N levels were small and not significant.”
t0“The yields of winter wheat, winter barley, and potatoes”
Title
Martin Káš; Jan Haberle; Stepanka Matějková Archives of Agronomy and Soil Science 2010. doi:10.1080/03650340903369392
Other claims from this paper (12)
- Intervention effect Nitrogen rate strongly affected winter wheat yield.
- Intervention effect Nitrogen rate strongly affected winter barley yield.
- Intervention effect Nitrogen rate strongly affected potato yield.
- Observation Wheat yielded 7.2–7.4 t ha−1 at the highest yielding nitrogen rates.
- Observation Barley yielded 5.2–5.5 t ha−1 at the highest yielding nitrogen rates.
- Observation Potatoes yielded a maximum 46–54 t ha−1 at 150 or 200 kg N ha−1.
- Intervention effect Organic fertilizers increased yields across the crops.
- Association The yield benefit of organic fertilizers diminished as nitrogen rate rose.
- Association Annual conditions strongly affected yields, with nitrogen level moderating the effect.
- Association Wheat yield variability declined from 37 to 22% as nitrogen rose.
- Association Barley yield variability declined from 33 to 16% as nitrogen rose.
- Association Potato yield variability declined from 32 to 20% as nitrogen rose.