Claim · model-written summary
Shoot biomass of November-planted cover crops reached a C/N ratio of 20 at Feekes 8 (flag leaf just visible), 94-98 days after planting.
- Taxon
- rye and triticale
Secale cereale
×Triticosecalet0 - Outcome
- C/N ratio of 20e0
- Value
- 94–98 DAPe1
- Qualifier
- Feekes 8 (flag leaf just visible, 94–98 DAP) in November plantingse1
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rye and triticale cover crops”
e0“shoot biomass reached a C/N ratio of 20”
e1“Feekes 8 (flag leaf just visible, 94–98 DAP) in November plantings”
Title
Can simple metrics predict carbon to nitrogen ratio changes in rye and triticale cover crops?
Eric B. Brennan; Richard F. Smith Agronomy Journal 2026. doi:10.1002/agj2.70375
Other claims from this paper (9)
- Association Growth stage and growing degree days were strongly correlated in rye and triticale cover crops.
- Association Days after planting and C/N ratio were strongly correlated in rye and triticale cover crops.
- Association The C/N ratios of the cover crops increased with increasing GDD, DAP and growth stage.
- Observation The C/N ratios were similar for rye and triticale.
- Observation The C/N ratios became more variable over time.
- Observation Shoot biomass of October-planted cover crops reached a C/N ratio of 20 at Feekes 10.1 (heading), 97-103 days after planting.
- Observation Fitted regression curves showed a C/N of 20 occurring by 94 to 102 days after planting for October and November plantings, respectively.
- Observation Accumulated GDD to reach a C/N of 20 varied with planting date, ranging from approximately 650 to 900 GDD.
- Intervention effect Accumulated GDD to reach a C/N of 20 tended to decrease with later plantings.