First of all I'm a homeowner and spraying on my own yard only. I have a 16 gallon ATV spot sprayer with 1 gpm 60 psi pump 12 volt. I'm thinking about getting a boom (that is made for this sprayer) and mounting it to the front of my walk behind mower. The tank would be straped to the mower deck. I'd be spraying after I mowed (so the blades would not be turning). I could use this setup for pre-emergent and post emergent weed control and applying liquid fertizer. I would have to alter my dilution ratios for each of these.