Nitrogen fluxes through unsaturated zones in five agricultural settings across the United States.

@article{Green2008NitrogenFT,
  title={Nitrogen fluxes through unsaturated zones in five agricultural settings across the United States.},
  author={Christopher T. Green and Lawrence H Fisher and Barbara A. Bekins},
  journal={Journal of environmental quality},
  year={2008},
  volume={37 3},
  pages={
          1073-85
        }
}
The main physical and chemical controls on nitrogen (N) fluxes between the root zone and the water table were determined for agricultural sites in California, Indiana, Maryland, Nebraska, and Washington from 2004 to 2005. Sites included irrigated and nonirrigated fields; soil textures ranging from clay to sand; crops including corn, soybeans, almonds, and pasture; and unsaturated zone thicknesses ranging from 1 to 22 m. Chemical analyses of water from lysimeters and shallow wells indicate that… CONTINUE READING
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