Intensive growth and nutrient consumption by corn plants begin at the 7-9 leaf phase. By this time, the root system is strong enough to give a powerful boost to vegetative growth. The first foliar feeding before this phase contributes to more intense root system development, despite the small leaf area. When applied to the leaves, "Nutrivant Plus Corn" helps alleviate stress from herbicide application and stimulates the plant as a whole. The boron and zinc in the nutrient mix replenish deficiencies and enhance the generative processes occurring at this time. It is also recommended to apply a second feeding during the 7-9 leaf phase for maximum effect.