On Coarse® DRA : Insights from David Johnson

The spray job is the most difficult job on the farm to get right. While farmers can meticulously gauge chemical quantities, water application rates per hectare, boom height, and travel speed, one critical factor eludes measurement: the precise spray quality from the nozzle. In the absence of direct measurement, reliance on Spray Nozzle Selection Guides becomes essential. However, these guides are calibrated with water as the base, often overlooking the significant impact of tank mix variations on spray quality. This is where On Coarse® steps in to revolutionise the game.