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Trends and Developments in Hog Manure Management: 1998-2009
关键词:
Hog production manure management structural change environmental regulation
年份:
2011
摘要:
and handled. Changes to the Clean Water Act, State regulations, and lo ...
Nitrogen in Agricultural Systems: Implications for Conservation Policy
关键词:
regulation
年份:
2011
摘要:
, nitrogen management as a condition of farm program eligibility, and regula ...
Dairy Products Prices Annual Summary
关键词:
USDA agricultural economics statistics Mann Cornell agriculture
年份:
2010
摘要:
inaccuracies discovered by the plant during internal review of program specific ...

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