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共检索到6条 ,权限内显示50条;
The Transformation of U.S. Livestock Agriculture: Scale, Efficiency, and Risks
- 关键词：
- Livestock dairy broilers hogs fed cattle farm structure scale economies contract agriculture CAFOs growth-promoting antibiotics
- 年份：
- 2009
- 摘要：
- for society, as industrialization concentrates animals and animal wastes...
Managing Manure to Improve Air and Water Quality
- 关键词：
- Animal waste
- 年份：
- 2005
- 摘要：
- Animal waste from confined animal feeding operations is a potential sou ...
Technical Documentation of the Regional Manure Management Model for the Chesapeake Bay Watershed
- 关键词：
- livestock waste
- 年份：
- 2005
- 摘要：
- As part of a broader ERS assessment of the costs of manure management, a regiona ...
Manure Management for Water Quality: Costs to Animal Feeding Operations of Applying Manure Nutrients to Land
- 关键词：
- livestock waste
- 年份：
- 2003
- 摘要：
- Nutrients from livestock and poultry manure are key sources of water pollution. ...
Confined Animal Production and Manure Nutrients
- 关键词：
- animal waste
- 年份：
- 2001
- 摘要：
- Census of agriculture data were used to estimate manure nutrient production and ...
Industrial Uses of Agricultural Materials Situation and Outlook Report (4)
- 关键词：
- industrial uses agricultural materials ethanol corn cornstarch sorbitol meadowfoam polyols wood composites medicinal plants
- 年份：
- 1994
- 摘要：
- ng for ways to handle and dispose of animal wastes that are cost effect ...
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