For farmers residing near poultry production facilities, poultry litter emerges as a cost-effective fertilizer option, provided they plan meticulously. Environmental quality specialist Peter Tomlinson and nutrient management specialist Dorivar Ruiz Diaz from Kansas State University elaborate on this in the recent Agronomy eUpdate.
The value of poultry litter to a farmer’s bottom line hinges on the nutrient requirements of their fields. In southeast Kansas, for instance, the initial year of application sees nitrogen valued at approximately $17.50 per ton of litter, potassium at about $9.80 per ton, and phosphorus at roughly $13.16 per ton, totaling around $40.76 per ton. Subsequently, residual nitrogen and phosphorus contribute about $26.73 per ton, alongside sulfur, micronutrients, and organic matter, enhancing soil health.
However, the actual nutrient concentration varies between truckloads, necessitating testing before application. Soybean Research Information Network research from Alabama underscores poultry litter’s potential to enhance soybean yields, provided timing aligns. Assistant professor Rishi Prasad from Auburn University recommends applying litter two to three weeks before planting to optimize nutrient availability, particularly nitrogen.
Yet, prudent handling is essential. Farmers must consider storage facilities, mindful of runoff contamination and odor management. Tomlinson and Ruiz Diaz offer practical advice, such as selecting storage sites away from residential areas and water sources, employing tarps to reduce odors and nitrogen losses, and consulting with specialists for optimal storage planning.
As poultry litter continues to gain traction as a viable fertilizer option, strategic planning and responsible handling remain paramount for farmers looking to maximize its benefits while minimizing environmental impact.
