Claim · model-written summary
Alternate drill rows reduced cover-crop grain yields by an average of 24% relative to mixed drill rows.
- Taxon
- cover cropse1
- Treatment
- alternate drill row configuratione2
- Outcome
- grain yields of cover cropse1
- Direction
- reducede2
- Value
- 24%e2
- Comparator
- mixed drill row treatmente1
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingQualifier
Verbatim
e1“grain yields of cover crops in the mixed drill row treatment were similar to those achieved by crops grown in the absence of pasture species”
e2“but were reduced by an average of 24% in the alternate drill row configuration”
Title
Richard C. Hayes; Matthew T. Newell; Anthony D. Swan; et al. Journal of Agronomy and Crop Science 2022. doi:10.1111/jac.12588
Other claims from this paper (11)
- Intervention effect Grain yields of cover crops in mixed drill rows were similar to crops grown without pasture species.
- Observation Canola and lupin crop biomass was lower than wheat and barley biomass.
- Observation Canola and lupin as cover crops led to increased pasture yields in year 1.
- Recommendation Canola and lupin should be used more as cover or companion crops in semi-arid environments.
- Intervention effect Pasture yields beyond year 1 were reduced by about 20% in alternate drill row treatments compared with mixed drill rows, with greater differences in more favourable conditions.
- Observation Yield reductions in lucerne were concentrated in the fewer drill rows of the alternate configuration.
- Intervention effect The alternate drill row configuration increased subterranean clover abundance in year 1.
- Observation Subterranean clover remained a minor component of all swards beyond the establishment year.
- Observation Grain size was smallest where previous pastures contained lucerne and subterranean clover without phalaris.
- Observation Protein concentration in grain was highest where previous pastures contained lucerne and subterranean clover without phalaris.
- Observation Spatially separating species in drill rows at sowing gave little advantage in total productivity.