In regular ag fertilizer 18-46-0 is the most common form of phosphorus fertilizer around this area. Occasionally 0-46-0 can be found, but dealers rarely stock it because the cost is usually the same as 18-46-0 (also called DAP which stands for Diammonium Phosphate) so the N portion is free compared to the 0-46-0 (N-P-K). Something about the manufacturing process that makes both products cost about the same to produce.

DAP

Last edited by snrub; 05/01/14 11:26 AM.
John

I subscribe to Pond Boss Magazine