Plant fertilizer. Tips to remove Plant fertilizer stains on carpets
Plant fertilizer, liquid or powdered, is an acidic based item that when spilled on the carpeting will leave stain marks that will not come out of the carpeting.
If you have spilled plant fertilizer on your carpet and it is ground in, you are not going to be able to get that stain out. Your best suggestion is to replace this particular area of carpeting.
