Gamaespectrometria aplicada em solo agrícola no noroeste do Estado do Rio de Janeiro

Abstract

The presentwork presents the use of gamma-ray spectrometry applied to precision agriculture In a sub-tropical area. Our dataset comprises measurements both In rock and residual soil. The soil dataset shows a reduction of 20% on U and Th and 10% on K, when compared to rock samples. This difference could be related to K supplementation associated to chemical fertilization. © 2006 Sociedade Brasileira de Geofísica.