Our Blood Meal contains approximately 12% nitrogen, nearly 1% phosphorus, and less than 1% potassium. It has the highest content of available nitrogen of any other organic fertilizer. Blood Meal provides abundant iron in a chelate form protected from chemical reaction in the soil to unavailable forms. These essential nutrients are released gradually over the season as the protein decomposes in the soil. Blood Meal is gentle on soil microbes and encourages humus production and good soil tilth; the key to sustainable productivity. Blood Meal flows freely and evenly and can be applied by spreader or by hand.