YAYU AGUSTINI, Rika; LISKA MUTIARA SEPTIANA; ALIYA AZKIA ZAHRA. Chemical Characteristics of Ultisols and Purple Eggplant Yields due to the Application of Composted Paper Sludge and NPK Fertilizer. Jurnal Ilmu Pertanian Indonesia, [S. l.], v. 31, n. 3, p. 579–586, 2026. DOI: 10.18343/jipi.31.3.579. Disponível em: https://journal.ipb.ac.id/JIPI/article/view/69980. Acesso em: 5 jun. 2026.