Claim · model-written summary
Apply nitrogen one or two weeks after seeding for maximum sugar yield.
- Taxon
- sugar beets
Beta vulgaris subsp. vulgarise1 - Outcome
- apply N‐fertilizer 1 or 2 weeks after and not before seedinge0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“For obtaining maximal sugar yield it is recommended to apply N‐fertilizer 1 or 2 weeks after and not before seeding”
e1“growth and yield of sugar beets”
Title
F. X. Maidl; G. Fischbeck Journal of Agronomy and Crop Science 1986. doi:10.1111/j.1439-037x.1986.tb00001.x
Other claims from this paper (12)
- Association February soil nitrate did not predict nitrogen available in early vegetation.
- Association Early spring soil nitrate had very low correlation with sugar yield.
- Association April/May nitrate in the upper soil layer correlated highly significantly with sugar yield.
- Association Maximum sugar yield occurred with 220 kg N/ha April/May soil nitrate.
- Observation Sugar yield had a wide nitrogen optimum range.
- Intervention effect Nitrogen deviations below 50 kg N/ha from optimum did not significantly change sugar yield.
- Association More late-available deep nitrogen decreased sugar content.
- Association More late-available deep nitrogen increased alpha-amino-N.
- Association More late-available deep nitrogen increased sodium.
- Mechanism Early nitrogen application may leach under heavy rain and harm juice purity and sugar content.
- Recommendation Local experience may suffice to set nitrogen fertilizer because of the wide optimum.
- Recommendation In special cases measure April soil nitrate and supplement fertilizer to 220 kg N/ha.