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Ionic Composition and Nitrate in Drainage Water From Fields Fertilized<br>with Different Nitrogen Sources, Middle Swamp Watershed,<br>North Carolina, August 2000-August 2001<br>USGS Scientific Investigations Report 2004-5123

A study was conducted from August 2000 to August 2001 to characterize the influence of fertilizer use from different nitrogen sources on the quality of drainage water from 11 subsurface tile drains and 7 surface field ditches in a North Carolina Coastal Plain watershed. Agricultural fields receiving commercial fertilizer (conventional sites), swine lagoon effluent (spray sites), and wastewater-treatment plant sludge (sludge site) in the Middle Swamp watershed were investigated.

By Stephen L. Harden and Timothy B. Spruill. 2004. 14 pages.


1637$2.25

 

 



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