A plant-available form of silicon added to nutrient solutions or foliar sprays to strengthen cell walls, improve stem rigidity, reduce internode spacing, and increase stress tolerance.
Mr. Q suggested a silica foliar spray for the struggling CO2 room plants. He also noted that high silica doses can reduce internode spacing and referenced 'Syndica' (a silica product) as an example, suggesting doubling or tripling the dose can noticeably shorten internode space. Dakota confirmed the greenhouse plants were receiving Armadillo Armor (a silica product from Puur Organics/Cronk) throughout the cycle, and the audible snap of cut branches indicated good silica uptake.
Discussed in: Ep 001