I am a novice at field conditioning, but at the high school level, the best maintained fields incorporated a lot of the soil conditioners(I'll find out the name later) allowing for less watering than may be available at colleges or pro levels. Our high school coach allows the sprinkler heads to hit the infield dirt as well as the grass during irrigation, and i think it comes on every day for 40 minutes. I have read where some MLB maintenance guys really soak the infield about 8 hours before a game so that the soil is conditioned properly. Just remember that I am not a pro, but someone who is getting started to help the local coach who has about 30 years experience.