I need a good recipe for spring spraying of my commercial lawns. I have sub-contracted my spring and fall weed and feed spray application for about 10 years. Since times are tough I will have to do it myself. I have a 200 gallon lesco spray unit. Can anyone give me a good recipe that includes nutrients and broadleaf control? I have a basic idea of what is needed, but if you can help me tweak my recipe, I would greatly appreciate it. Thanks.