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Agricultural Matters
Can increasing soil carbon also increase soil CO2 back into atmosphere?
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<blockquote data-quote="Ffermer Bach" data-source="post: 7796098" data-attributes="member: 51054"><p>I think the old humus stays in the soil for hundreds of years idea has been updated, I think now the latest thinking is it's more of a dynamic system (Carbon in, Carbon out, but still more held in the soil), I think ultimately the more we can encourage fungi, as opposed to bacteria to dominate the soil biome the more Carbon is held in the soil. I am not sure how Tera Petra soils (in the Amazon) and Bio Char fit in this, maybe, Bio Char holds far more Carbon than anything else in the soil, if we can find a way of getting more of it into the soil in a commercial setting. I think too much cultivation is bad for fungi, which ultimately is bad for soil holding onto Carbon.</p><p></p><p>Also recently heard that as we pull Carbon from the atmosphere, so the oceans give up Carbon, but ultimately, the more we can sequester in the soil the better.</p><p></p><p>I think the best way to sequester Carbon is with mob grazing and getting the soil biome "buzzing", any cultivation is bad for that, however, we still need to eat grains etc so there has to be a compromise on this, but probably cut out ploughing (mind you I guess you still have to for Potatoes etc), so again, compromise.</p></blockquote><p></p>
[QUOTE="Ffermer Bach, post: 7796098, member: 51054"] I think the old humus stays in the soil for hundreds of years idea has been updated, I think now the latest thinking is it's more of a dynamic system (Carbon in, Carbon out, but still more held in the soil), I think ultimately the more we can encourage fungi, as opposed to bacteria to dominate the soil biome the more Carbon is held in the soil. I am not sure how Tera Petra soils (in the Amazon) and Bio Char fit in this, maybe, Bio Char holds far more Carbon than anything else in the soil, if we can find a way of getting more of it into the soil in a commercial setting. I think too much cultivation is bad for fungi, which ultimately is bad for soil holding onto Carbon. Also recently heard that as we pull Carbon from the atmosphere, so the oceans give up Carbon, but ultimately, the more we can sequester in the soil the better. I think the best way to sequester Carbon is with mob grazing and getting the soil biome "buzzing", any cultivation is bad for that, however, we still need to eat grains etc so there has to be a compromise on this, but probably cut out ploughing (mind you I guess you still have to for Potatoes etc), so again, compromise. [/QUOTE]
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Can increasing soil carbon also increase soil CO2 back into atmosphere?
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