Table 1: Percent by weight of macronutrients and micronutrients provided by Viking Brand 21-7-14, Free Flow 29-3-4, High N 22-4-6 + Minors, and Milorganite 6-2-0 fertilizer formulations.

Nutrient Fertilizer Viking Brand 21-7-14 Free Flow 29-3-4 High N 22-4-6 Milorganite 6-2-0 N (ammoniacal) 11.0 1.2 5.9 0 N (nitrate) 10.0 0 5.3 0 N (urea) 0 27.8 10.8 0 N (total) 21.0 29.0 22.0 6.0a P (P2O5) 7 3 4 2.0 K (K2O) 14 4 6 0 Ca 0 0 1 0 Mg 0 0 1 0 S 5.0 3.9 3.0 0 Fe 0 2 1 4.0 Mn 0 0 0.1 0 Zn 0 0 0.05 0 Cu 0 0 0.05 0 B 0 0 0.02 0 Mo 0 0 0.001 0

aDerived from municipal biosolids.