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The National Agricultural Library is one of four national libraries of the United States, with locations in Beltsville, Maryland and Washington, D.C. It houses one of the world's largest and most accessible agricultural information collections and serves as the nexus for a national network of state land-grant and U.S. Department of Agriculture field libraries. In fiscal year 2011 (Oct 2010 through Sept 2011) NAL delivered more than 100 million direct customer service transactions.

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Journal Article

期刊文章

Use of nitrogen-fixing plants to improve and maintain productivity of forest soils  [1979]

Haines, S.G.; DeBell, D.S.;

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来自期刊
Reprints - United States, Forest Service

书目信息

语言:
English
类型:
Conference
自何时收录于AGRIS:
2013
所有题名:
"Use of nitrogen-fixing plants to improve and maintain productivity of forest soils"@eng
其它:
"Reprinted from Proceedings, Impact of Intensive Harvesting on Forest Nutrient Cycling. p. 279-303. Aug 13-16, 1979. Bibliography p. 297-303."
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书目信息

语言:
English
类型:
Conference
自何时收录于AGRIS:
2013
所有题名:
"Use of nitrogen-fixing plants to improve and maintain productivity of forest soils"@eng
其它:
"Reprinted from Proceedings, Impact of Intensive Harvesting on Forest Nutrient Cycling. p. 279-303. Aug 13-16, 1979. Bibliography p. 297-303."