The application of lime to Illinois cropland is a time-tested method for controlling soil acidity.  It can help maintain optimum nutrient availability and consequently, crop production.  The Illinois Department of Agriculture and the Illinois Association of Aggregate Producers work together to publish the Illinois Voluntary Limestone Program Producer Information booklet detailing the latest testing results for ag lime available from various sources in Illinois and surrounding states.  This year's ag lime info can be found here.
 
With this information at hand you can make the best possible decisions for proper use of ag lime when it comes to protecting the environment, increasing the effectiveness of fertilizers and herbicides while also enhancing crop profit potential.