Effects of Different Nitrogen Fertilizers and Humic Acid On Wheat Crop Irrigated With Different Water Regime Using 15N. Bangladesh Journal of Botany, [S. l.], v. 50, n. 2, p. 261–267, 2021. DOI: 10.3329/bjb.v50i2.54081. Disponível em: https://www.banglajol.info/index.php/BJB/article/view/54081. Acesso em: 26 jun. 2026.