Pond Boss Forums MANAGING AN EXISTING POND Fertilization Cost of fertilizer

See the link below pg 17 Type of Fert to use. The missing nutrient in ponds is usually P not N or K . The bag #s are by # in order of each of N, P ,and K . 13-13-13 is equal parts of each while 0-46-0 (a common pond fert) is all P. In a normal pond lacking P you will spend more using 13-13-13 than 0-46-0 (even though the later costs more) to get the same results. There is 3 times the needed nutrient P in the later so you would have to use 3X the amount of 13-13-13 to get the same results. In addition you may over nitrate the pond with to much nitrogen.

That does not mean 13-13-13 will not work - it may do ok. It would not be my choice.

http://msucares.com/pubs/publications/p1428.pdf