Gro-Silic is very effective as a soil drench, but for fastest absorption apply as a foliar spray.
Application Rate: 1L makes 6667L of solution.
Foliar application: Dilute to 1:500 or greater. Apply at the 3 – 8 leaf stage and once monthly thereafter as required. Soilless/water culture application: For nutrient solutions apply at a rate of 0.15 – 0.30 ml/L (0.6 – 1.2 ml/gal.).