Do plants eat dirt?

21 January 2019
Presented by Jenny Gracie.

virginia live oak

virginia live oak

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Marcus was wondering how trees, such as giant oaks, can grow so huge and not make a hole in the ground. Where does their mass come from if not from the dirt? Jenny Gracie has been digging deep to find an answer, with help from Andrew Weatherall from the National School of Forestry at the University of Cumbria...

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