College of Bioresource Sciences;
Nihon University;
Nonoichi;
Japan;
Faculty of Bioresources and Environmental Science;
Ishikawa Prefectural University;
Nonoichi;
Japan;
Water; Balance; Nitrogen; Balance; Groundwater; Pollution; Sewage; Treatment; Water; Pollution; from; Farmland; Nitrogen; Pollution; Load; Potential;