Claim · model-written summary
Nitrogen addition did not significantly change A. retroflexus relative yield with P. oleracea.
- Taxon
- A. retroflexus
Amaranthus retroflexuse0 - Treatment
- nitrogen additione0
- Interactor
- P. oleracea
Portulaca oleraceae0other - Outcome
- relative yield of A. retroflexuse0
- Direction
- no significant effecte0
Not reportedMaterialGeneCompoundOrgan / stageSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.


Verbatim
e0“nitrogen addition had no significant effect on the relative yield of A. retroflexus but significantly increased the relative yield of P. oleracea, thereby weakening the competitive advantage of A. retroflexus.”
Title
Fan Yang; Yige Zhang; Wenhui Wang; et al. Nitrogen 2026. doi:10.3390/nitrogen7020057
Other claims from this paper (10)
- Intervention effect Nitrogen addition significantly increased P. oleracea relative yield.
- Intervention effect Nitrogen addition weakened A. retroflexus competitive advantage with P. oleracea.
- Intervention effect Nitrogen addition no significant effect relative yield of M. sativa in the A. retroflexus–M. sativa mixture.
- Intervention effect Nitrogen addition increased relative yield of A. retroflexus in the A. retroflexus–M. sativa mixture.
- Intervention effect Nitrogen addition enhancing competitive advantage of A. retroflexus in the A. retroflexus–M. sativa mixture.
- Intervention effect NO3−-N strengthened A. retroflexus competitive advantage with M. sativa.
- Intervention effect NO3−-N weakened A. retroflexus competitive advantage with P. oleracea.
- Association A. retroflexus competitive advantage was associated with photosynthetic traits and nitrogen absorption efficiency.
- Observation The competitive response included greater leaf number, leaf area and SPAD value.
- Observation The competitive response included greater leaf biomass.