 The study evaluated the effects of different potassium, K, levels on the growth and root system characteristics of catunymelons using a rhizobuck system with sand hydroponic culture and Hoagland formula for nutrient solution preparation. The results showed that the highest shoot fresh weight, leaf area, and SPAD value were at 235 or 176 milligrams L1K of K, while root characteristics were affected differently by K treatments. The highest root fresh weight was in plants treated with 118 milligrams L1K, and the shortest roots were at 235 milligrams L1K of nutrient solution. Root nutrient concentration of N, K, P, C, A, and Fe was highest at 118 or 176 milligrams L1K, while the lowest amount of root Mg and Fe was in plants treated with 235 milligrams L1K overall. The study suggests that moderate to high or moderate potassium levels can improve shoot or root growth characteristics of catunymelons. This article was authored by Sakina Pornjbari Saghesh and Muhammad Kazim Suri. We are article.tv, links in the description below.