The chelation process in the soil Soluble chelates increase the availability of micronutrient cations: Fe Zn, Mn, and Cu. The chelates help protect the ions from precipitation or adsorption reactionsSoluble chelates increase the availability of micronutrient cations: Fe, Zn, Mn, and Cu. The chelates help protect the ions from precipitation or adsorption reactions. The chelation process in the soil