When the liquid is evaporated, it leaves granular ammonium nitrate. Some fertilizer products are a combination of products. The popular 28% and 32% urea-ammonium nitrate (UAN) solutions—CO(NH2)2 ...

They are satisfactory as sidedress fertilizers for corn, except on extremely sandy soils. 28-32% N Materials (Non-Pressure). Various urea-ammonium nitrate-water (or UAN) mixtures are classified as ...