Claim · model-written summary
Nitrogen applied after mid-July gave no yield or maturity advantage.
- Taxon
- onions
Allium cepae1 - Treatment
- applying N after mid-Julye0
- Outcome
- yield or maturitye0
- Direction
- No advantagee0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“No advantage in yield or maturity was obtained by applying N after mid-July.”
e1“onions ( Allium cepa L.)”
Title
Nitrogen-water Relationships of Onions Grown on Organic Soil1
Jerald W. Riekels Journal of the American Society for Horticultural Science 1977. doi:10.21273/jashs.102.2.139
Other claims from this paper (9)
- Intervention effect Without irrigation, increasing nitrogen did not affect onion growth, maturity, or final yield.
- Intervention effect With weekly rainfall plus irrigation, increasing nitrogen increased onion growth to midseason and final yield.
- Intervention effect With weekly rainfall plus irrigation, increasing nitrogen advanced onion maturity.
- Intervention effect High nitrogen advanced sprouting in storage relative to no or low nitrogen.
- Association Irrigation strengthened the nitrogen effect on storage sprouting.
- Intervention effect Nitrogen topdressing without irrigation did not induce an onion response despite regular rainfall.
- Intervention effect With irrigation, 22 or 34 kg N/ha after each 10 cm water gave the highest onion yield.
- Intervention effect With irrigation, 22 or 34 kg N/ha after each 10 cm water gave earliest onion maturity.
- Intervention effect Onions matured earlier without irrigation across nitrogen treatments.