I 'm bidding on a commercial landscape maintenance job for a local department store. There is approximately 45,000 square feet of turf to fertilize. How much should I charge for turf fertililization for them? The next paragraph is what the customer is requesting. "A quality turf fertilizer shall be applied three (3) times per season providing a total minimum of three (3) pounds actual nitrogen per 1,000 square foot of turf per season."