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| Basically what the guy below said. NH3 bubbled in water in a converter to give a 20% N solution. It's been used in this area for 30+ years. Anhydrous and it battle for fertilizing acres. Anhydrous has become a bit cheaper than aqua for full service customers in the last couple of years, due to freight cost. However, the people who make meth. love NH3 bottles, so the increased security rules, fencing and insurance-and from what I hear homeland security rules- are starting to drive up cost of NH3. Aqua is relatively easy for the farmer to self apply, so the "no serve" market is strong. Anhydrous full serve was 41cents/lb N this spring. I could have aqua delivered to a 10K storage tank they supplied for 34.5 cents. UN 32 was 41 cents no serve also.
We apply around 75# N/acre in this wheat area.
On an aside, a smaller local dealer is setting up conversion facility at a local port to convert dry urea to liquid. They figure the cost of rules around NH3, and tight availablity of supply will make this profitable. We'll see.
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Forms of N
