poly-coated sulfur-coated sulfate of potash, or similar. I'd only like to do one summer app, and with using a fert w/ a high slow N, and a 30% to 50% slow K, I think I could keep diseases to minimum and help the turf through drought conditions. Agronomicaly, to me, it makes sense rather than 2 summer apps. Anyone ever use it? I was thinking of incorporating into my program this year. Could the results be worth the price?