Quote:
Originally Posted by gokart-mozart
Now, I'm not a water chemist and I don't work in this area of science.
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Actually, the data is everywhere and if you do a quick "google" of phosphorus and euthrophication. You will find tons of university research papers
Keep in mind that a change from 4.8 to 6 is a 25% change. If we were to use your "tiny, tiny" analogy, your body has a tiny, tiny amount of potassium that your heart and muscles need to function. I can raise that tiny, tiny amount in you blood and your heart would stop
FYI, there are several states who already ban P from detergent and fertilizer. In NY you have to et a soil test to prove your soil needs it which is what people should be doing anyways. Soil tests cost a whole $15.
My user name may give some clue as to how much interest I have in this area. I've got more than a casual understanding of law fertilizers and herbicides. Unfortunately everyone thinks they know all their is to know about lawn care since they can read a Scott's label
Over fertilizing is part (not all) of the problem when it comes to water quality. The other part is septic tanks and fields. Some towns are now starting to require pumping every three years.
Prevention is much easier to deal with over time.