Field Correlation and Calibration of Soil Nitrogen Tests in Sugarcane Production.
Eduardo Mariano, Center for Nuclear Energy in Agriculture, University of Sao Paulo, Araras, SP, BRAZIL, Rafael Otto, Department of Soil Science, University of Sao Paulo, Piracicaba, Sao Paulo, BRAZIL, Heitor Cantarella, Soils and Environmental Resources Center, Agronomic Institute of Campinas, Campinas/SP, Brazil and Paulo C. O. Trivelin, Center for Nuclear Energy in Agriculture, University of São Paulo, Piracicaba/SP, Brazil