Iron is one of the most deficient elements in the soil of our country. However, the deficiency is not due to its scarcity in the soil, but due to the high pH and high lime content of our country soils. Knk Solis Iron is a product that has been formulated with a special chelating technique that is completely water-soluble, and is responsible for the transport of oxygen, especially in the production of chlorophyll. Chlorosis (yellowing) occurs between the veins of young leaves with iron deficiency, but the veins remain green. In the later stages of the deficiency, the plant dies because no chlorophyll is synthesized. Iron darkens the color of the leaves and enables the plant to benefit more from solar energy. It is also one of the essential elements in biological nitrogen fixation. It is applied from the soil and leaves at the doses recommended according to the plant's needs.