Nucleus Ortho-Phos NPK Fe (6-21-2 0.2 Fe) is a neutral pH formulation that gives your emerging crop a head start on growth, while improving stand uniformity. By providing key nutrients, it strengthens plant growth and can potentially result in an earlier harvest from enhanced growth after planting. With Nutris Formulation Technology, Nucleus Ortho-Phos NPK Fe increases nutrient availability that can result in improved plant vigor and enhances development of roots to improve yield potential. Nucleus Ortho-Phos NPK Fe can be applied in furrow, 2 x 2, through drip tape or center pivot application. Contains EDDHA chelated iron ( Ferrilene 6) for use in high pH soils.