I'm having trouble with a question and I'm almost too embarassed to ask! I;ve spent the last couple hours trying to figure it out though and am getting nowhere fast. Liquid ammonia and ammonium nitrate, based on percentage of nitrogen by mass, which of these 2 would be the better fertilizer. Ammonium Nitrate - NH4No3 Liquid Ammonia - NH3 ?? Where do I start? I did something and got ammonium nitrate as having 35% N, 5% H and 60% O.