Nonprofit myths: Many don't pay property taxes -- but for many good reasons. There has been a great deal of conversation recently regarding nonprofit organizations and property taxes. Much has been written regarding the multitude of benefits that our best regional nonprofits add to our community.
Currently, price differences between the nitrogen fertilizers are less than the historical spreads. On March 31, prices were $.37 per pound for ammonia, $.41 for urea, and $.47 for liquid N. Currently, urea has a $.04 higher price than anhydrous ammonia, compared to a $.09 historical average.
We use liquid nitrogen, but mostly liquid helium, here at Jefferson Lab to cool our electron accelerator. It allows us to save enormous amount of energy and money. Liquid nitrogen is a LOT cheaper than the helium so we use that for our demonstrations. Even though Helium is the second most common element in the universe there is only a fixed amount available on the earth, so we don't waste any of it. Liquid nitrogen is very inexpensive because we can get it from air.