Search Results for the EPA National Library Catalog

Items Found: 5
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Your Search: (SUBJECT=Humus Congresses)


 
 
 
Select Item Title Year Published
Advances in soil organic matter research : the impact on agriculture and the environment / 1991
Aquatic and terrestrial humic materials 1983
Humic substances in soil and crop sciences selected readings : proceedings of a symposium cosponsored by the International Humic Substances Society ... in Chicago, Illinois, December 2, 1985 ... / 1990
Humic substances, their structure and function in the biosphere : proceedings of an international meeting held at Nieuwersluis, the Netherlands, May 29-31, 1972 / 1975
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

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