Claim · model-written summary
Shoot biomass of October-planted cover crops reached a C/N ratio of 20 at Feekes 10.1 (heading), 97-103 days after planting.
- Taxon
- rye and triticale
Secale cereale
×Triticosecalet0 - Outcome
- C/N ratio of 20e0
- Value
- 97–103 DAPe1
- Qualifier
- October‐planted cover crops were at Feekes 10.1e1
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“October‐planted cover crops were at Feekes 10.1 (heading, 97–103 DAP)”
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 November-planted cover crops reached a C/N ratio of 20 at Feekes 8 (flag leaf just visible), 94-98 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.