Since this is a 50 pound bag of Crop Master Fertilizer 9-18-27, there will be 18% Potassium per bag, which is 9 pounds. You will usually use more than 1 bag per Acre with most fertilizers, but of course this will depend on the needs of your soil and application.
Crop Master Fertilizer 9-18-27 is a general fertilizer for plants. The manufacturer recommends contacting your local cooperative extension office for the appropriate rate of use.
