| Skimp on amendments, fertilizers and the rest, but if you want good tomatoes it's about the water. |
| The chief sources of phosphorus in river water are the weathering of rocks and the leaching out of fertilizers from agricultural land. |
| Seventy-two percent use both liquid and granular fertilizers on their courses. |
| While you can make up a solution from basic fertilizers, I recommend a ready-mixed formulation. |
| The number of blooms is growing as a result, experts believe, of nutrients and fertilizers in farm and sewage run-off. |
| Farms use chemical fertilizers, hybrid seeds and artificial insemination and weedicides. |
