Ammonium Sulfate 21-0-0 (16 lbs). Ammonium Sulfate is great source of Nitrogen with the acidifying addition of Sulfur. This is the preferred fertilizer of Blueberries, providing the form of Nitrogen that they can use.
VPG Hi-Yield Ammonium Sulfate 21-0-0 Fertilizer, 16lbs
Hi-Yield Ammonium Sulfate Fertilizer is one of the best available forms of Nitrogen and Sulfur. Designed for lawns, flower & vegetable gardens, shrubs (evergreens & acid loving plants), trees, and especially blueberries.