Wollastonite

Wollastonite is a good source of calcium and silica, which promotes stronger plants and disease resistance. It is also know to help alleviate aluminum toxicity problems, and can be used as a magnesium source. General rates: 30-200 lbs. per acre. Apply up to 400 lbs. per acre if a strong calcium or magnesium effect is desired.

Disclaimer: OMRI Listed. NOP approved with no restrictions