Manganese is a micronutrient found in the soil. Symptoms of a plant suffering a deficiency of manganese sulfate include chlorosis, which is a yellowing of the leaves between the veins. This gives the leaves a marbled, pinstriped or checkered appearance, depending on the leaf structure of the individual plant affected. Ferrous deficiency may also cause similar symptoms, and often goes hand in hand with a manganese deficiency. [Read More]