Sulfur is a constituent of amino acids in plant proteins and is involved in energy-producing processes in plants.  Sometimes a deficiency can be mistaken for Nitrogen deficiency.  Dr. Rob Mikkelsen helps us understand how a plant uses sulfur and how to diagnose a deficiency.  We also talk about the 4Rs of this nutrient to maximize its efficient use. Find out more about specific crop deficiencies HERE Find out more about Yara's solutions for sulfur, AMIDAS