I just renovated my lawn with fescue in the fall and it is really full and green. This year I'm planning to offer fert service to my customer so I'm trying to get a feel for it by starting on my lawn. I use a lesco spreader and lesco fert, Post-M, and Pre-M. I have set it with the calibration keys so as far as I know Im ready to go. My question is this.....If it takes 10 passes to cut the front lawn with a 36" Exmark, how many passes do I make the lesco spreader? I know I have to apply 1 pound of N per 1000 sqft but it is a bit difficult to to break this lawn down by 1000 sqft and break down 1 pound of N out of a 50 pound bag of fert. Can someone tell me a easy way to figure this out? Thanks PS. I do have my pesticide applicators license.