| as a source of soluble potassium | 7 | purpose |
| to the agricultural industry | 4 | transitive-object |
| very | 2 | degree |
| potash → be → essential | 5 |
| potash → be → important | 3 |
| potash → be → vital | 3 |
| negative | neutral | positive |
| 0.052 | 0.599 | 0.349 |
| Raw frequency | 11 |
| Normalized frequency | 0.776 |
| Modifier score | 0.500 |
| Perplexity | 198.600 |