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Old 01-29-2008, 03:37 PM
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FdLLawnMan FdLLawnMan is online now
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Join Date: Jul 2004
Location: East Central WI
Posts: 992
Quote:
Originally Posted by DA Quality Lawn & YS View Post
For northern lawns (kbg, fescue), how much of the total N available in dry granular fertilizers should be slow release. As much as possible? Thanks.
If the lawn is receiving adequate moisture studies have shown that a 50% slow release every 6 weeks gives the most even color and growth. I have one customer that has irrigation so I put down a 75% slow release within two weeks of Memorial day for my customers and then a 50% slow release around Labor Day. If it is less than 50% allow release I don't consider it a slow release, but that is just me. A 50% slow release will last up to 8 weeks depending on the polymer coating used and the amount of rain.
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