In terms of price comparison, granular urea cost 9% more than anhydrous ammonia and 6.5% more than liquid UAN in early February, according to Pro Farmer Inputs Monitor. During harvest 2016 ...

In its purest form, anhydrous ammonia is a pungent, caustic gas, but it is usually stored and transported as a liquid under high pressure. The primary use of anhydrous ammonia is in agriculture ...