"ooha" wrote in message . ..
What are the most inexpensive sources of chemical fertilizers for high
nitrogen application?

If you need fertilizers in commercial quantities, contact nearby
feed-and-seed stores or whoever supplies farmers in your area.

If your needs run just to home use, whoever sells sulphate of ammonia
or nitrate of ammonia the cheapest is your man.

(If you need nitrate of ammonia in quantity, be prepared to
demonstrate that your need is consistent with the quantity ordered and
that your intended use is a proper one.)

--
Chris Green