good stuff..i am currently out...
Studies conclude foliar's a waste. Soil applications are preferred. This study used dyna-gro protek for foliar and soil apps for some of testing.
key words Silicon and Soil Fertility
https://njaes.rutgers.edu/pubs/soilprofile/sp-v20.pdf
How often can I use protekt? Every watering?
Yes.you guys are adding silica every water/feed time?
Agsil 16h. Make your own protekt.