The base material in Suståne fertilizers is a consistent, organic, aerobically composted turkey litter from midwestern family farms. Turkey litter is known to have the highest concentration of macro and micro nutrients out of all livestock manures. Through the composting process these nutrients are naturally chelated with organic matter. This process converts the nutrients to slow release, organic form. The nutrient conversion in the composting process also makes the nutrients more easily convertible to plant available form. The result is long lasting nutrition that matches the release of nutrients with the crops natural demands.