Claim · model-written summary
Oil yield was almost equal under the two nitrogen fertilizer forms.
- Taxon
- winter oilseed rape
_Brassica_napus_-_Habit.jpg?width=60)
Brassica napust0 - Treatment
- both forms of N fertilizere0
- Outcome
- oil yielde0
- Direction
- almost equale0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Brassica_napus_-_Habit.jpg?width=500)
Verbatim
e0“resulting in almost equal oil yield from both forms of N fertilizer”
t0“winter oilseed rape (Brassica napus)”
Title
R. J. Darby; M. V. Hewitt The Journal of Agricultural Science 1990. doi:10.1017/s0021859600075808
Other claims from this paper (11)
- Observation Neither fertilizer regimen produced visible scorch.
- Intervention effect Prilled urea produced 98% of the seed yield from ammonium nitrate on average.
- Intervention effect Fertilizer timing and distribution had little effect on yield.
- Intervention effect Withholding part of the dressing in March slightly reduced yield.
- Observation Mikado usually outyielded Ariana, except when weather delayed harvest.
- Intervention effect Urea increased seed oil content relative to Nitro-chalk.
- Intervention effect A large single urea dose lowered crude protein content relative to ammonium nitrate.
- Intervention effect Repeated smaller urea doses restored crude protein parity with ammonium nitrate.
- Intervention effect Nitrogen form and timing had no consistent effect on total glucosinolate content.
- Intervention effect Either nitrogen fertilizer increased disease incidence relative to no fertilizer.
- Intervention effect Urea reduced pod downy mildew infection relative to ammonium nitrate.