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Old November 18, 2017   #65
MissS's Avatar
Join Date: Dec 2010
Location: Pewaukee, Wisconsin
Posts: 2,726

Your Super Phosphate is just fine as it is. No need to grind, pulverize or powder it. This product tends to stay where it was placed rather that leaching out like nitrogen does, so it is best mixed well into the soil before planting.
~ Patti ~
Zone 5
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