Erythrina, Erythrina, Gagad Restu Pratiwi, Nurwulan Agustiani, and Arinal Haq Izzawati Nurrahma. “Nitrogen Fertilizers and Plant Spacing in Organic Rice Cultivation: A Review”. Journal of Applied Agricultural Science and Technology 7, no. 3 (August 25, 2023): 314-328. Accessed August 28, 2025. https://www.jaast.org/index.php/jaast/article/view/143.