Check the listing for details. Roots Organics Bat Guano. Condition: New. Listed at 36.99 USD. NPK / 9 - 3 - 1 DERIVED FROM 100% Natural Bat Guano Roots Organics Nitro Bat Guano is an excellent source of nitrogen, phosphorus, and calcium. Carefully processed and sifted to make it easy to work with, Roots Organics Nitro Bat Guano encourages vigorous growth and is fast acting for quick results. All of the Roots Organics guanos have been carefully sourced for quality and harvested with bat-friendly methods so you and your garden get performance with principles. Nitro Bat Guano has been specially selected (and harvested using bat friendly methods) to contain a high quantity of available nitrogen, as well as smaller amounts of phosphorous, potassium and calcium. It provides a comprehensive nutrient charge to your plants with organic bat guano which is also known for enhancing the taste of consumables.