I normally don't like to fertilize Fescue in the summer, but this is a request from a potentially good client. I know that i need about 1/2 lbs of N and i want atleast 1lb on P, what do you recommend for K? i'm thinking about using some 10-24-15. i think it's 15. something like that. I know it's 10-24 though. Any help is appreciated.