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A review question about organic "matter".
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Old Pokey
Posted 11/21/2012 22:11 (#2710025)
Subject: A review question about organic "matter".


 Not organic material, but organic matter after the proper decomp and conversion has taken place.

 Hypothetically, if you had a parcel of soil that say you put in some program, probably a past, defunct government program lets say, and you were not to grow a crop in this soil, just use tillage as a means of keeping the weeds down.

 Without a crop or much growing material, how much organic "matter" would disappear or be oxidized? OM would only continue to increase untill all current material was broken down and converted, but would the level of OM then level off and stabilize? Or would the weather and exposure from tillage decrease it? 

 This is not a dig on tillage. It is not a promotion for no-till. I'm curious to know if exposure alone oxidizes OM, or whether vegetation/flora usage without compensation is the only way that OM is reduced.

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