Provides a chelated form, green-up formula of iron required to prevent or cure iron chlorosis  OSKAR is a high analysis chelated iron product used for short-term correction of poor plant uptake of soil iron which works differently from other chelates. OSKAR is a proactive preventive of a deficiency in the plants which is a better agronomic practice than trying to correct chlorosis once it appears. It is a fully stable iron fertilizer in high alkaline soils, up to 9.5 pH especially for the plants that may be suffering from iron deficiency.