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Biochar could replace unsustainable peat moss in greenhouse industry

Plant lovers are familiar with peat moss as the major component of potting mix, but harvest of the material is becoming unsustainable. Not only is peat being removed faster than it can re-form, its use in potting mix contributes to the release of carbon dioxide into the atmosphere.

Photo: Andrew Margenot and others found that biochar can replace peat moss in marigold production with no adverse effects. (credit: Andrew Margenot)

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