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Old 09-11-2011, 12:07 PM
greendoctor greendoctor is offline
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Join Date: Mar 2008
Location: Honolulu, Hawaii
Posts: 7,859
Originally Posted by Smallaxe View Post
So why is iron not available to your grass? pH issues???
Soil types. Iron oxide and iron phosphate are not available in alkaline clay. In acidic soils, manganese competition becomes an issue.
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