Al-Hashemi, F. H., Abdalijabar, Z. F., Esmaael, A. E., Mahmood, S. G., Hasan, F. A. (2026). Qualitative attributes, nutritional traits and yield components of Calendula officinalis L.: response to liquid NPK fertilizer, humic acid, and moringa leaf extract. Scientific Reports. https://doi.org/10.1038/s41598-026-62830-7