What factor is crucial when developing a nutrient management plan in Pennsylvania?

The critical factor in developing a nutrient management plan in Pennsylvania is the density and type of animals present. This aspect is essential because the type and number of animals on a farm influence the amount and type of manure produced, which in turn affects nutrient management practices.

Understanding animal density helps farmers determine how much manure can be safely applied to fields without exceeding nutrient limitations, thereby minimizing the risk of nutrient runoff. For instance, larger operations with higher animal densities may produce more manure than can be absorbed by the land, necessitating careful management to avoid environmental contamination.

Other factors, such as soil texture, pH, crop rotation practices, and weather patterns, also play significant roles in nutrient management. However, the specific focus on animal density and type addresses the direct source of nutrients that need to be managed effectively to protect the environment and promote sustainable agricultural practices.