Iron is the micronutrient most consumed by a majority of plants. It acts as a catalyst in many of the plant’s physiological processes. Iron plays an essential role in the synthesis of chlorophyll and in maintaining optimal photosynthetic efficacy during periods of growth. It also intervenes in the synthesis and structure of many proteins. Iron favours the transformation of nitrates into ammonium for protein synthesis and binding of atmospheric nitrogen. The breathing process of plants requires iron. Iron also favours the transport of manganese. Iron deficiency causes typical yellowing or chlorosis that affects young leaves first. Direct repercussions ensue on the production potential such as lack of vigour, coulure, fruit malformation, and low sugar content. Agro-Fe OP improves photosynthesis, energy production, and resistance to stress.