The public and the agricultural community are concerned with the impact of agrichemical use on the environment. Of particular concern is the impact of pesticides and nitrogen on the quality of surface and ground waters (Nielson and Lee 1987). Although a national effort is under way to address...

Concern about environmental impacts of nitrogen fertilizer use is increasing. Mainstream agriculture is dependent on nitrogen fertilizer and use patterns are polluting water resources. A five cent tax on nitrogen fertilizer is shown to have three benefits. National nitrogen fertilizer use is...

Soil erosion as an on-site problem received much attention in the 1985 Food Security Act (FSA), which established programs for the Conservation Reserve and conservation compliance. The 1985 FSA explicitly linked farmers' resource use and conservation activities to benefits received from...

This report summarizes the ARIMS analysis for the 1990 Farm Bill Conservation Initiatives Work Group. Three major tasks were completed. First, ARIMS was updated to reflect the short-run nature of possible 1990 farm bill policies. Specifically, ARIMS now incorporates a more differentiated set of...

The livestock and dairy industries are consolidating and concentrating within confined geographical areas. Accompanying these structural adjustments that are under way in the dairy and livestock industries is the potential for increased point and nonpoint source pollution problems from animal...

Contamination of the Nation's ground and surface water supplies from normal use of pesticides and fertilizers has caused growing concern about the impact of agricultural practices on water quality. Informed decisions on sustainable agricultural policies to protect soil and water quality, and...

A viable agricultural policy should adapt to any changes occurring within the agricultural sector. With the growing focus on environmentally friendly agriculture, increased role for markets by reducing the influence of farm programs, agricultural-related global climate change, and budgetary...

Fueled by economic forces, dairy sector policies, technological progress, and strict environmental regulations the U.S. dairy industry is consolidating into large, confined animal feedlot operations (CAFOs) and concentrating in a few localized areas. These structural changes produced a...

The development of the field-scale Erosion Productivity Impact Calculator (EPIC) model was initiated in 1981 to support assessments of soil erosion impacts on soil productivity for soil, climate, and cropping conditions representative of a broad spectrum of U.S. agricultural production regions....

The Center for Agricultural and Rural Development (CARD) is developing a model to examine land use changes and their associated environmental and economic implications for the Southeast region of the United States. The model will be built as if there were two regions in the U.S. One region is...