PO 42: Calculate lime application rates to meet lime requirements.

Lime recommendations are given in 100% ENV.  To convert to lime recommendation for a particular liming material, some calculations must be done.

• Lime rate (tons/acre) = 100 x lime rate for 100% ENV (tons/acre) / ENV of material

• For example: soil test recommendation is 1.5 tons/acre of 100% ENV; limestone material has ENV = 70.3.  Thus:
• Lime rate (tons/acre) = 100 x 1.5 / 70.3 = 2.1 tons limestone/acre