Musthofa, Nurul, Novilda Elizabeth Mustamu, Kamsia Dorliana Sitanggang, and Yudi Triyanto. 2025. “Optimizing The Growth of Corn Plant (Zea Mays L) Local Variety of North Sumatera, Which Has Been Irradiated With Gamma-Rays M1 With Urea Fertilizer Application ”. JURNAL AGRONOMI TANAMAN TROPIKA (JUATIKA) 7 (1), 349 -. https://doi.org/10.36378/juatika.v7i1.4233.