Pro-TeKt® 0-0-3 The Silicon Solution® supplies higher levels of silicon and potassium. Silicon is deposited in a hard, opalene form in the epidermal layers of leaves and stems and is incorporated in cell walls. This creates a Pro-TeKtive barrier against insects and fungi. Pro-TeKt® increases fertility, stem strength, leaf positioning, improves photosynthesis and increases heat, drought and cold tolerance. Use as a supplement with any fertilizer on all plants.