After the asian soybean rust scare hit in autumn of 2004, many of us in the sprayer industry began advocating the use of twin flat fan nozzles to better treat the disease. It turns out we were wrong. By creating two spray patterns out of one, twin flat fan nozzles reduce the force of each spray by half, meaning there is not much force with which to penetrate the soybean canopy.

Robert Klein is an agronomist at the University of Nebraska and an expert on spray nozzles. He offered general guidelines for selecting and using spray equipment in the April issue of No-Till Farmer (see Pages 14 and 15). Below are other nuggets of advice Klein offered to attendees at this year’s National No-Tillage Conference: