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                                    Manure Management for Water Quality: Costs to Animal Feeding Operations of Applying Manure Nutrients to Land
- 关键词:
 - nitrogen
 
- 年份:
 - 2003
 
- 摘要:
 - Nutrients from livestock and poultry manure are key sources of water pollution. ...
 
                                    Adoption of Agricultural Production Practices: Lessons Learned from the U.S. Department of Agriculture Area Studies Project
- 年份:
 - 2001
 
- 摘要:
 - nitrogen applications, green manure, biological pest controls, pest-re ...
 
                                    Confined Animal Production and Manure Nutrients
- 关键词:
 - Manure nutrients manure nutrients animal waste confined livestock confined animal feeding operation CAFO feedlot beef dairy cows swine
 
- 年份:
 - 2001
 
- 摘要:
 - t farms (78 percent for nitrogen and 69 percent for phosphorus ...
 
                                    Benefits of Safer Drinking Water: The Value of Nitrate Reduction
- 年份:
 - 1997
 
- 摘要:
 - Nitrates in drinking water, which may come from nitrogen fertilizers ap ...
 
            


