Ron from Mokena, Il 60448 writes
Andersons Black Gypsum DG does not specify whether or not it neutralizes dog urine. However, while gypsum is often touted to “neutralize” dog urine, it cannot neutralize excess nitrogen. Some dog owners report success with gypsum, but it may simply be that it improves soil drainage, which prevents the urine from collecting near the crowns and roots of the grass plants.
Answer last updated on: 09/24/2020