Green-T® Iron 5% is a high-quality glucoheptonate chelate liquid that has excellent foliar action and enters the plant tissue within 12 to 48 hours. Iron acts as a carrier of oxygen required in the production of chlorophyll. It is involved in the photosynthetic and respiration system and is used as a reaction catalyst. Iron produces a “greener” plant tissue. Iron and Manganese work together and are important for consistent chlorophyll development.