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Old 10-20-2012, 12:08 PM
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RigglePLC RigglePLC is offline
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Join Date: Jul 2006
Location: Grand Rapids MI
Posts: 9,555
I am doing some tests (naturally). I have applied fall fertilizer at intervals about 2 weeks apart in the fall on my neighbor's vacant lot, (non-irrigated, low maintenance). So far, if I look close, there is a stripe of slightly greener grass from the September 23rd treatment. Unfortunately the lot is not uniform, patches of shade and crabgrass--so--small differences would not show up.

Last year I did similar experiments on the lot, and my daughter's backyard. The differences were so slight, I could draw no conclusions.

On my own backyard, I did a similar experiment, with one 20 foot square area having double fertilizer on November first.
Shady yard, high quality bluegrass--by November 30 there was no visible difference. There was no visible difference during the following year.
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