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Old 01-18-2014, 11:59 PM
greendoctor greendoctor is offline
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Join Date: Mar 2008
Location: Honolulu, Hawaii
Posts: 7,338
Yes and no. Do you know how much sulfur per acre is required to change the pH +1.5 on clay soil containing a lot of carbonates or too much magnesium? Its a lot. There are times when it is more practical to supply available micronutrients as a true chelate and use acid forming fertilizers to effect change long term. I have always found it easier to raise pH rather than lower it and many grasses will handle a pH of say 5.5 a lot better than say, 7.5. Now if I am working on a site to be turned into a lawn, bad soil is either replaced or it is amended. Sulfur and lime work best when mixed into the first 6" of soil rather than spread on top of existing grass. The amount of sulfur needed is often more than what grass will tolerate without burning.
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