Down to Earth Granulated Pro-Organic Nitro 13-0-0 Fertilizer, 50-Pound A granulated organic nitrogen source derived from premium quality animal proteins Can be blended with other materials or used as a stand alone fertility product to promote vigorous plant growth and increased crop yields Can be incorporated into soil pre-plant or top dressed throughout the growing season Carefully blended from organic nutrients in the ideal proportions without the use of synthetics, growth stimulants or low quality fillers Highest quality ingredients help provide an effective and environmentally friendly approach to plant care, crop fertilization and soil management