The Pennsylvania Nutrient Management Program provides a comprehensive source of information about Pennsylvania's Nutrient Management Act (Act 38, 2005) Program, and associated technical guidance and educational information. It also provides limited information concerning related programs.
This article describes the three main pathways of nitrogen loss--nitrate leaching, denitrification, and volatilization--and summarizes requirements and provides nitrogen management guidance.
Phosphorus is an essential element for plant and animal growth, but too much of it can accelerate the natural aging of lakes and streams.
Effective nutrient management requires decisions to be made at several different levels of detail: strategic, tactical, and operational (Figure 1).
The focus of nutrient management is rapidly evolving from optimizing agronomic production and economic returns of crop production to balancing farm production with environmental protection.
Nutrient management has taken on new meaning in recent times. Soil fertility traditionally dealt with supplying and managing nutrients to meet crop production requirements.
Decision-making in agriculture affects the distribution of materials such as crops and manure within farms, and the movement of materials such as feeds and farm products to and from farms.
Pennsylvania agricultural operations that are designated Concentrated Animal Operations or Concentrated Animal Feeding Operations are required to implement an approved nutrient management plan.
Learn how to calculate the animal density of an agricultural operation to determine if it is a Concentrated Animal Operation (CAO) and thereby required to implement an Act 38 nutrient management plan.
Robert Graves, Ph.D., P.E.
Nutrient budgets have been developed by Mid-Atlantic Regional Water Program to quantify the magnitude and sources of excess nutrients that are being generated and applied throughout Pennsylvania.