The Effect of Foliar Spraying with The Nano Fertilizer Optimus-plus on The Growth and Yield of Four Varieties of Kohlrabi. Nabatia, [S. l.], v. 12, n. 1, p. 55–68, 2024. Disponível em: https://nabatia.umsida.ac.id/index.php/nabatia/article/view/1638. Acesso em: 7 nov. 2026.