A dairy farm implemented a precision farming system to improve environmental and economic sustainability. By using Six Sigma principles and the Cornell University Nutrient Management Planning System, they focused on managing nutrients for the herd and crops, soil, and manure. The system led to increased milk production, reduced feed costs, and lower manure nutrient excretion. This was achieved through better forage production and quality, precision feeding, and continuous improvement in management practices. Overall, the farm's financial performance improved, and the accumulation of manure nutrients decreased.