Wollastonite is good for plants: Summary of current research on silicon and wollastonite by expert Joseph Heckman
Excerpt:
Wollastonite: A Good Choice for Delivering Silicon
“Research conducted on New Jersey soils compared various fertilizer sources for plant-available silicon and powdery mildew suppression using pumpkin as a test crop. The most effective material for supplying plant-available Si and for disease suppression was found to be wollastonite a calcium silicate mineral mined from the earth.”
—
Complete article available:
Website link: http://www.growingproduce.com/vegetables/protect-crops-amending-soils-silicon/
Full article download: Protect Crops by Amending Soils with Silicon