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Manure Use for Fertilizer and for Energy: Report to Congress
关键词:
Manure
年份:
2009
摘要:
of fertilizer, and its other uses. About 5 percent of all U.S. croplan ...
Vegetables and Melons Outlook: September 2009
关键词:
fertilizer
年份:
2008
摘要:
and lowest in the Midwest. Labor accounted for 30 percent of U.S. cash expenses ...
Impact of Rising Natural Gas Prices on U.S. Ammonia Supply
关键词:
fertilizer
年份:
2007
摘要:
The volatile and upward trend in U.S. natural gas prices from 2000-06 has led to ...
Agricultural Resources and Environmental Indicators, 2003
关键词:
fertilizer
年份:
2003
摘要:
This report identifies trends in land, water, and biological resources and comme ...

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