| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | potassium chloride | chemical | Potassium chloride is a common ingredient in fertilizers and is used in large-scale agricultural production for its high potassium content. | 1 |
| 2 | potassium ion | chemistry | Used as a fertilizer to promote plant growth and crop yield | 1 |
| 3 | potassium ion | chemistry | Highly reactive, used in the production of various chemicals and as a coolant in nuclear reactors | 1 |