Claim · model-written summary
Wheat biomass did not increase with potassium addition.
- Taxon
- wheat
Triticum aestivume0 - Treatment
- K additione0
- Outcome
- biomass productione0
- Direction
- did not increasee0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“biomass production of canola and wheat did not increase with K addition”
Title
Differential response of weed and crop species to potassium and sulphur fertilizers
C. A. Grant; D. A. Derksen; R. E. Blackshaw; et al. Canadian Journal of Plant Science 2007. doi:10.4141/p06-138
Other claims from this paper (12)
- Intervention effect Seven weed species significantly increased biomass with potassium fertilizer.
- Intervention effect Canola biomass did not increase with potassium addition.
- Intervention effect Sulphur fertilizer increased canola biomass.
- Intervention effect Sulphur fertilizer increased flixweed biomass.
- Intervention effect Sulphur fertilizer increased wild mustard biomass.
- Intervention effect Sulphur fertilizer increased hairy nightshade biomass.
- Intervention effect Sulphur fertilizer increased round-leaved mallow biomass.
- Intervention effect Sulphur fertilizer increased stork’s-bill biomass.
- Intervention effect Sulphur fertilizer did not increase spring wheat biomass.
- Intervention effect Sulphur fertilizer did not increase biomass of any grass weed species.
- Association The greenhouse data suggest fertilizer can shift relative weed–crop competition when weeds respond more than the crop.
- Recommendation The authors recommend field testing the competition concept.