Claim · model-written summary
Potassium fertilization increased total tuber yield by 10% versus control.
- Taxon
- potato
Solanum tuberosumt0 - Treatment
- Potassium fertilizer applicatione0
- Outcome
- total yielde0
- Direction
- increasee0
- Value
- 10%e0
- Comparator
- controle0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Potassium fertilizer application, regardless of the rate, significantly increased tuber yield, resulting in an average 10% increase in total yield and a 12% increase in US No. 1 yield compared to the control.”
t0“Potato”
Title
Potato Productivity Response to Potassium Fertilizer Source and Rate in Oregon’s Columbia Basin
Shahram Torabian; Jack Pieper; Ruijun Qin; et al. Agronomy 2025. doi:10.3390/agronomy15081795
Other claims from this paper (7)
- Observation Umatilla Russet had the highest total yield at 56.5 t per hectare.
- Intervention effect Potassium fertilization increased US No. 1 yield by 12% versus control.
- Intervention effect Total yield did not differ significantly among potassium rates from 224 to 896 kg K2O per hectare.
- Method / resource The yield response model identified a 251 kg K2O per hectare breakpoint.
- Intervention effect The model indicated no significant yield increase above the breakpoint.
- Association Higher potassium rates were associated with lower tuber specific gravity.
- Intervention effect Potassium sulfate and potassium chloride produced similar yields.