Apparent soil electrical conductivity and gamma-ray spectrometry to map particle size fraction in micro-irrigated citrus orchards in California - Scudiero, Elia; Schmidt, Michael P.; Skaggs, Todd H.; Ferreira, Jorge F. S.; Zaccaria, Daniele; Pourreza, Alireza; Corwin, Dennis L. (Frontiers in Plant Science, 2025)