This fertilizer tool is designed to allow the user to examine the costs of nutrients depending on their source (custom blend versus single nutrient fertilizers). Enter the costs associated with your particular source of chemical. Only enter values for nutrients which will be applied; leave all other boxes blank. Number formatting does not matter (6, 6.0, or 6.00 will work).
Once a fertilizer is chosen, use only that fertilizer in the grazing and/or hay models that follow.