| fertilizer → MadeOf → synthetic ingredients | 0.69 | |
| fertilizer → MadeOf → sewage sludge | 0.54 | |
| fertilizer → MadeOf → manure | 0.53 | |
| fertilizer → MadeOf → bioengineering | 0.44 | |
| fertilizer → MadeOf → gas | 0.39 | |
| fertilizer → MadeOf → oil | 0.37 | |
| fertilizer → MadeOf → steelmaking slag | 0.28 | |
| fertilizer → MadeOf → natural gas | 0.27 | |
| fertilizer → MadeOf → fossil fuels | 0.26 | |
| fertilizer → MadeOf → industrial waste | 0.19 | |
| fertilizer → MadeOf → new generation of formulations | 0.19 |