Search Results for the EPA National Library Catalog

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Your Search: (SUBJECT=Nitrogen cycle Research)

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Select Item	Title	Year Published
1	Nitrogen isotope techniques	1992
2	Opportunities in nitrogen management research : improving applications for proven technologies and identifying new tools for managing nitrogen flux and input in ecosystems /	2002
3	Wetlands and lakes as nitrogen traps. Research programme for the period 1 July 1990 - 30 June 1994.	1991

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