How to Calculate Lime Per Acre on a Pasture

Test the pH level of your pasture by obtaining a soil test kit from your local cooperative extension office.

Collect soil samples from several different locations in the pasture to be limed. Numerous samples must be taken from a number of areas in the field and tested individually as the pH level can vary throughout your pasture. Multiple soil samples will provide an overall average of the pH level of your pasture.

Draw a map of your pasture using paper and pencil and record the areas where the samples were taken. Recording the sample locations will allow you to apply the correct amount of lime required to the appropriate areas of your pasture.

Package soil tests as instructed and return the kit to your local extension office for testing.

Evaluate your soil test results to assess the pH level of your pasture.

Determine what type of grass you will be growing on the land being tested. The optimum pH level for most crops is between pH 6.0 and pH 7.0; however, the appropriate pH level for your pasture will depend on your crop. For example, bermudagrass only requires a pH level of 5.5.

Discuss your pH level and pasture grass with your extension service agent to determine the correct amount of lime needed per acre. If you are not able to talk to your extension agent, you can use the Agricultural Lime Association's table for Lime Applications to determine the appropriate amount of lime per acre.