Al-Badri SNA-B, Al-Amrani HAA-A. ROLE OF FOLIAR APPLICATION WITH PLANT EXTRACTS, AND ADDING HUMIC ACID IN GROWTH OF Calendula officinalis AND ITS CONTENT FROM ZEAXANTHIN AND LYCOPENE. Iraqi J. Agric. Sci. [Internet]. 2026 Jan. 26 [cited 2026 Jul. 10];57(1):55-70. Available from: https://www.jcoagri.uobaghdad.edu.iq/index.php/intro/article/view/2446