The invention is generally directed to a system and process for fluorometrically quantifying potentially mineralizable nitrogen for agricultural crop production. The soil analysis process measures potentially mineralizable nitrogen and calibrates the application of soil-based nitrogen for site or field specific management of nitrogen fertilizers for crops grown on a wide variety of soil textures including sandy loam, silt loam and clay soils. The spectrofluorometric system and process may be utilized for routine soil testing with a lower sample to sample variability, and the automation of the spectrofluorometric system and process allows for simultaneous determination of potentially mineralizable soil organic nitrogen, ammonium and nitrate.
Crop, Soil and Environmental Sciences
US 20140273253 A1
Board of Trustees of The University of Arkansas (Little Rock, AR)
Roberts, Trenton L.; Norman, Richard J.; Slayton, Nathan A.; and Wilson, Charles E. Jr., "System and process for quantifying potentially mineralizable nitrogen for agricultural crop production" (2016). Patents Granted. 300.