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热门报告
共检索到28条 ,权限内显示50条;
Technical Documentation of the Regional Manure Management Model for the Chesapeake Bay Watershed
- 关键词：
- water quality
- 年份：
- 2005
- 摘要：
- >Manure Management for Water Quality: Costs to Animal Feeding Operation ...
Pork Quality and the Role of Market Organization
- 关键词：
- quality
- 年份：
- 2004
- 摘要：
- , by exploring their function in addressing pork quality concerns. A nu ...
Contracting in Tobacco? Contracts Revisited
- 关键词：
- quality
- 年份：
- 2003
- 摘要：
- This article discusses the recent increase in tobacco contracting and the benefi ...
Manure Management for Water Quality: Costs to Animal Feeding Operations of Applying Manure Nutrients to Land
- 关键词：
- water quality
- 年份：
- 2003
- 摘要：
- Nutrients from livestock and poultry manure are key sources of water po ...
Confined Animal Production and Manure Nutrients
- 关键词：
- water quality
- 年份：
- 2001
- 摘要：
- Census of agriculture data were used to estimate manure nutrient production and ...
Production Practices for Major Crops in U.S. Agriculture, 1990-97
- 年份：
- 2000
- 摘要：
- r agricultural production practices in 1964. In 1990, through the President's
...
Changes in Nutritional Quality of Food Product Offerings and Purchases: A Case Study in the Mid-1990's
- 关键词：
- quality
- 年份：
- 1999
- 摘要：
- This report provides a new economic approach and methodology for analyzing nutri ...
Economics of Water Quality Protection From Nonpoint Sources: Theory and Practice
- 关键词：
- Water quality
- 年份：
- 1999
- 摘要：
- Water quality is a major environmental issue. Pollution from nonpoint s ...
Agricultural Resources and Environmental Indicators, 1996-97
- 关键词：
- water quality
- 年份：
- 1997
- 摘要：
- This report identifies trends in land, water, and commercial input use, ...
Benefits of Safer Drinking Water: The Value of Nitrate Reduction
- 关键词：
- Water quality
- 年份：
- 1997
- 摘要：
- Nitrates in drinking water, which may come from nitrogen fertilizers ap ...
