Acomparison between Effect Humic Acids Extracted with Sodium and Potassium Hydroxide from Different Animal Organic Manure on Soil Properties and the Growth and Yield of Beetroot. EJAS [Internet]. 2026 Jun. 30 [cited 2026 Nov. 10];18(2). Available from: https://ejs-agri.com/index.php/EJAS/article/view/664