Bhawna Verma, D.S. Gurjar, Rosin K.G., V.K. Prajapati, A.K. Tiwari, S.L. Meena. Impact assessment of heavy metals spi ked wastewater irrigation on growth, keeping quality and productivity of Calendula (Calendula officinalis L.). AAR. 2023;44(2):243-248. Accessed June 7, 2026. https://epubs.icar.org.in/index.php/AAR/article/view/141945