Micronutrients exist within plant cells in the form of organic chelates. Chelation occurs when certain large molecules (usually those containing carbon) form multiple bonds with the micro mineral. The larger, organic molecule binds the micronutrient to itself in such a way that it protects the micronutrient from reactions with other ions in solution. Figure 1 shows the structure and function of fulvic acid. As an example of chelation with minerals, humic and fulvic acids complex through adjacent functional groups on their benzene-ring structure (Cheam, 1973). In another example, such as with copper the two bonds formed between copper’s positive charges and the negatively charged carboxyl groups protect the copper from interactions with most inorganic humic and fulvic acids possess several functional groups capable of complexing micronutrients. The most important of these functional groups is the carboxylic acid (COOH) and hydroxyl groups (Boyd et. al., 1981). When these functional groups occupy adjacent positions on the benzene ring backbone of humic and fulvic acids, chelation can occur