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2018 [1]
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Concentrations of nutrients at the water table beneath forage fields receiving seasonal applications of manure, Whatcom County, Washington, autumn 2011–spring 2015 [研究报告]
10.3133/sir20185124U.S. Geological Survey. 2018-01-01
Cox, Stephen E. secox@usgs.gov;  Spanjer, Andrew R. aspanjer@usgs.gov;  Huffman, Raegan L. rhuffman@usgs.gov;  Black, Robert W. rwblack@usgs.gov;  Barbash, Jack E. jbarbash@usgs.gov;  Embertson, Nichole M.
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