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Old 12-28-2013, 03:25 PM
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americanlawn americanlawn is offline
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Join Date: May 2006
Location: midwest
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All the above posts make sense. (thanks) I've got a handful of the 1997 soil test results in my hand. Clay soil lawns ranged in pH 7.9 - 8.2. According to MVTL Laboratories, every sample lacked organic matter. (good point Barry)

I rarely have problems with loam soil lawns, so here goes with the problem (clay) lawns. Most deficient micronutrients regarding Midwest turfgrass in high pH soils = iron, copper, zinc, boron. source: ISU

I realize sulfur would work and organic matter would fix the problem, but these require truckloads. thoughts? what has worked for you and what time of year is best? liquid? granular? easiest product to apply? thanks in advance
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