Quote:
Originally Posted by PaulF
Too much of anything can be detrimental to growing conditions. Soil needs to be balanced and too much organic matter could throw things out of balance. That is a rare condition but I remember our state extension people saying something like 18-20% organics and you will get diminishing returns.
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Considering my soil is 1.2 and 2.6 % SOM respectively. That's not an issue. I am not alone. Most soils are very low until people add that compost. Now sure there is a point of diminishing returns. But I suspect 99% of people reaching 18% have been adding a WHOLE LOT of compost every year for years and years. Composting causes a lot of shrinkage. It would be quite difficult to get numbers like that in a normal bed. Maybe a container, or a raised bed with sides. 
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Scott
AKA The Redbaron
"Permaculture is a philosophy of working with, rather than against nature; of protracted & thoughtful observation rather than protracted & thoughtless labour; & of looking at plants & animals in all their functions, rather than treating any area as a single-product system."
Bill Mollison
co-founder of permaculture
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