Claim · model-written summary
White clover fixed 99 kg N/ha biologically in zero-N swards.
- Taxon
- white clover
Trifolium repense0 - Outcome
- biological N fixatione0
- Value
- 99 kg N/hae0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“biological N fixation of 99 kg N/ha from the white clover”
Title
Herbage nitrogen uptake in grass-only and grass-white clover swards receiving zero nitrogen
Murray Áine; Delaby Luc; Burchill William; et al. Nutrient Cycling in Agroecosystems 2026. doi:10.1007/s10705-026-10475-3
Other claims from this paper (5)
- Observation Grass-only swards yielded 7,682 kg DM/ha per year.
- Observation Grass-only swards yielded 185 kg N/ha per year.
- Association Grass-white clover swards yielded significantly higher herbage (10,166 kg DM/ha per year) than grass-only swards.
- Association Grass-white clover swards took up significantly more N (284 kg N/ha per year) than grass-only swards.
- Mechanism Background N mineralisation of 185 kg N/ha arises from the soil organic matter in grass-only and grass-clover swards receiving zero N.