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Mycorrhizal fungi- apply once or each time you re-pot?

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  • AstraeusAstraeus Posts: 336
    I have used mycorrhizal fungi powder when planting shrubs and trees and I can fully understand the logic of symbiosis between the fungi and the roots seeking out water.

    However, it may have been on GQT or something else in the last few weeks where they categorically rubbished it, suggesting that the only thing proven to make any difference was biochar! They said that mycorrhizal fungi is present in all soil anyway so adding it brings no benefit.
  • punkdocpunkdoc Posts: 15,039
    Totally agree, there is no evidence.
    Fungal networks are undoubtedly important for woody plants and trees, but we have no idea as to what type of fungi, or even whether the stuff we buy in packets is viable.
    How can you lie there and think of England
    When you don't even know who's in the team

    S.Yorkshire/Derbyshire border
  • LynLyn Posts: 23,190
    Does anyone know where this comes from?  I suspect China. 
    Gardening on the wild, windy west side of Dartmoor. 

  • AstraeusAstraeus Posts: 336
    punkdoc said:
    Totally agree, there is no evidence.
    Fungal networks are undoubtedly important for woody plants and trees, but we have no idea as to what type of fungi, or even whether the stuff we buy in packets is viable.
    You might like to read this: https://www.lrb.co.uk/the-paper/v43/n10/francis-gooding/from-its-myriad-tips

    Absolutely fascinating stuff.
  • Hostafan1Hostafan1 Posts: 34,889
    Another bandwagon ( like water retaining crystals ) which many have been happy to jump upon but will roll on by before very long.
    Devon.
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