Table 2.

Common sources and levels of B in fertilizers that are used in a pre-plant medium for container production.

sourceibs./yd.3gms./container% Bgms. B/2 gal. container
Ureaformaldehyde4.4*14.980.00024**0.0036
Iron sulfate0.82.70.06420.1749
Gu 49 (micronutrient)2.06.80.19501.3280
Dolomitic limestone4.013.60.0040.0545
Triple superphosphate1.86.10.03280.2010
Gypsum3.210.90.01400.1525
1.9145
  • * Rate of fertilizer incorporated into the preplant medium

  • ** Samples were digested in 6N HCL for 4 hours at 90°C.