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P, or Phosphorus, is very harmful to our waterways.
In Massachusetts, it's illegal to add any phosphorus fertilizer to your lawn without a soil test saying that it's needed.
You can have a great lawn, save money, AND protect local waterways!
Take the guesswork out of fertilizer application with the Fertilizer Calculator. Simply type in information about your fertilizer and the size of your lawn, and you'll know how much to apply.
There is much to learn about Stormwater Management from resources on the Web. Here are a few websites of interest.