Step (1) make sure that you have Precision Farming turned on so that you can take soil samples which will generate a Soil Map of the Field(s) that you took samples of. Step (2) purchase NH3 and UAN specific equipment like Tanks, Applicators, Toolbars, Sprayers, etc. Step (3) purchase your NH3 and UAN. Step (4) apply your NH3 and UAN per your Soil Map. Step (5) enjoy Bumper Crops!!