Anyaegbu PO, Aihebhoria DO, Ilozobhie NE. EFFECTS OF FERTILISER SOURCE ON NITROGEN USE EFFICIENCY, BIOMASS PARTITIONING, AND AGRONOMIC AND PHYSIOLOGICAL RESPONSES OF SWEET POTATO VARIETIES. FJS. 2026;10(7):91-100. doi:10.33003/fjs-2026-1007-4718