Looking for a fertilizer to provide a direct source of nitrogen, phosphorus, or potash? Graco offers a variety of fertilizers which serve as a direct nitrogen, direct phosphorus, or direct potassium source, many in both liquid and granular form.
The above listed products constitute a sampling of N, P, or K sources that are stocked or are available for bagging from Graco Fertilizer Company. Most items are available in granular formulas in 50 pound bags, or are available for bulk purchase. Please call us at (800) 343-5620 for current availability and pricing of all N, P, or K source products.