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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...
Persistent link: https://www.econbiz.de/10005786630
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...
Persistent link: https://www.econbiz.de/10005786212
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...
Persistent link: https://www.econbiz.de/10005786502
As Poland's economic transformation progresses, its agricultural sector must adopt new technologies in order to operate safely and efficiently, to remain competitive in the world marketplace, and to meet basic standards of environmental protection. This paper reports on the Poland Agriculture...
Persistent link: https://www.econbiz.de/10005786685
over potential sources of environmental degradation (see, for example, Shortle and Dunn 1986; Russell and Shogren 1993). Although partially related to scientific advances in measurement and detection, perceived risks due to chemical loading have intensified the pressure to more closely coordinate...
Persistent link: https://www.econbiz.de/10005272803
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....
Persistent link: https://www.econbiz.de/10004961490
An integrated modeling system has been constructed for the Upper North Bosque River Watershed (UNBRW) in Erath and Hamilton Counties, Texas, to simulate the movement of nutrients from dairy waste disposal fields. The authors describe the environmental component of that modeling system, focusing...
Persistent link: https://www.econbiz.de/10004961491
The Agricultural Policy Environmental eXtender (APEX) model was developed by the Blacklands Research and Extension Center in Temple, Texas. APEX is a flexible and dynamic tool that is capable of simulating a wide array of management practices, cropping systems, and other land use across a broad...
Persistent link: https://www.econbiz.de/10005835286
Informed debate on agricultural nonpoint pollution requires evaluation of regional water quality in relation to management practices. It is prohibitive, in terms of cost and time, to run the site-specific process models for regional policy analysis. Therefore, a simplified and robust...
Persistent link: https://www.econbiz.de/10005612643
Production data on more than 11,000 state and collective farms in Ukraine were obtained through the VASKhNIL Research Agreement between the Center for Agricultural and Rural Development (CARD) at Iowa State University and the Ukrainian Institute of Agrarian Economics. Of particular interest to...
Persistent link: https://www.econbiz.de/10005612644