Potassium fertilizer could increase dandelions by 20x

Dandelion (Taraxacum officinale) abundance can be increased by potassium (K) and lime applications. Adding K fertilizer when it is not needed by the grass, or adding lime to increase the pH when the grass does not require such an adjustment, could lead to increased competitiveness of dandelions in that sward.

Some links for this episode include:
- My dandelions and potassium post: https://www.asianturfgrass.com/post/potassium-dandelions/
- Tilman et al.'s article on biological weed control of dandelions: https://doi.org/10.1890/1051-0761(1999)009[0103:BWCVNC]2.0.CO;2
- The article with Frank Rossi about Park Grass from the Green Section Record: https://www.asianturfgrass.com/post/fertilizer-and-weeds-at-park-grass/
- Park Grass photo gallery: https://www.asianturfgrass.com/post/park-grass-photos/
- Rothamsted's Park Grass experiment video: https://youtu.be/-3-Pm5JUQZ4

Creators and Guests

Micah Woods
Micah Woods
I'm chief scientist at the Asian Turfgrass Center and director of the @paceturf information service. Some current projects include #OM246, #ClipVol, and #MLSN.
Potassium fertilizer could increase dandelions by 20x
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