Ketersediaan Nitrogen dan Fosfor Serta Respon Pertumbuhan Tanaman Selada (Lactuca sativa) Yang Diberi Biochar dan Pupuk Kandang di Tanah Berpasir. AGRI-SUSTAIN : Journal of Sustainable Agriculture, Food Systems, and Natural Resources, [S. l.], v. 1, n. 1, p. 9–18, 2026. Disponível em: https://jurnal.edutripper.com/index.php/agri-sustain/article/view/18. Acesso em: 8 oct. 2026.