Claim · model-written summary
Results highlight nitrogen facilitation and vertical soil differentiation supporting water complementarity in Trifolium mixtures.
- Outcome
- complementarity for water acquisition and usee0
- Qualifier
- N facilitation but almost soil vertical differentiatione0
TrifoliumNot reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Altogether, these results highlight N facilitation but almost soil vertical differentiation and thus complementarity for water acquisition and use in mixtures with Trifolium.”
Title
Pauline Hernandez; Catherine Picon-Cochard Frontiers in Plant Science 2016. doi:10.3389/fpls.2016.00538
Other claims from this paper (10)
- Intervention effect Trifolium presence and abundance positively affected biomass production and complementarity in two-species mixtures from the second year.
- Intervention effect Leaf area, N and water-use efficiency were higher in communities containing Trifolium.
- Intervention effect Deep root growth was higher in communities containing Trifolium.
- Association Regression identified water acquisition and use traits together with N as main determinants of biomass production and complementarity.
- Mechanism Lower shallow root mass of Trifolium and higher soil moisture should increase water availability for associated grasses.
- Mechanism Higher deep root growth and lower soil moisture indicate increased soil resource use in mixtures.
- Observation Grass mixtures showed no significant over-yielding even when their traits were complementary.
- Mechanism Vertical complementarity depends on root plasticity as well as inherent root architecture.
- Mechanism Positive complementarity effects were time-dependent because Trifolium developed slowly, possibly due to grass competition.
- Mechanism Soil water resources were an important driver of over-yielding and complementarity in Trifolium-grass mixtures.