Search Results for the EPA National Library Catalog

Items Found: 5
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Your Search: (SUBJECT=Soils Nitrogen content Congresses)

Select Item Title Year Published
Nitrogen behavior in field soil 1978
Nitrogen in the environment / 1978
Proceedings, National Conference on Management of Nitrogen in Irrigated Agriculture / 1978
Soil organic matter studies : proceedings of a symposium on soil organic matter studies jointly organized by the International Atomic Energy Agency and the Food and Agriculture Organization of the United Nations, in co-operation with Agrochimica, and held in Braunschweig, 6-10 September 1976. 1977
Soil-plant-nitrogen relationships / 1978

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