SIANTURI, Michael Gusman; HARAHAP, Erwin Masrul; HANUM, Hamidah. The Increasing Production of Soybean Plants (Glycine max L.) Based on Result Target’s and Nutrient Index. Jurnal Online Pertanian Tropik, [S. l.], v. 6, n. 2, p. 319–327, 2019. DOI: 10.32734/jopt.v6i2.3185. Disponível em: https://idjpcr.usu.ac.id/jpt/article/view/3185. Acesso em: 19 dec. 2025.