Yield and trace metal levels in colocasia (Colocasia esculenta L.)-potato (Solanum tuberosum L.) cropping sequence as influence by fly ash and fertilizer application. ELSR [Internet]. 2017 Oct. 24 [cited 2026 Sep. 2];:1-5. Available from: https://emergentresearch.org/index.php/ELSR/article/view/72