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Edited on Thu Aug-25-05 01:00 PM by dcfirefighter
Farmers try not to put more fertilizer than can be used by the crop - fertilizer running off is wasted money.
Harry Homeowner uses whatever he buys in the store.
Increased percent of paved surfaces increase surface runoff, which gives topsoil microbes & plants no chance to absorb the fertilizer. Only a small fraction of an area needs to be paved before surface flows start (rather than subsurface flows).
The stuff may sound goofy, but really, greenroofs, permeable paving, engineered wetlands, and native planting (vs. manicured lawns) would help a whole lot.
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