Carbonate of calcium and magnesium. Use only when Mg levels are low, or when excess Mg is not a problem. The amount of lime needed to raise pH is dependent on soil type and initial pH; check a good gardening resource site or book for application rates.
|PGS 5# $2 / 50# $8|
* Asterisk indicates Restricted; must document trace mineral deficiency associated with amendment. Check with your certification agent for more information.