Dr. Steve’s Agronomic Tip of the Week is about the three factors that determine crop yield: The GEM factors:  Genetics  Environment  Management  We discuss these three factors and how to increase the capabilities of each.  We also discuss 2 main management components:  Nutrient Management – specifically the Four R’s  Right nutrient rate  Right nutrient source  Right nutrient application timing  Right nutrient placing  Irrigation – the right frequency and duration for the plant need