Jon Frank's Groups (4)

  • Brix, Rock Dust, Refractometer

    8 members Latest Activity: Apr 18, 2018

    Lets talk about how using rock dust can raise your Brix readings. What a refractometer is and how to use it. Also what is Brix?

  • Results with Excelerite

    5 members Latest Activity: Feb 19, 2013

    People can post their results with Excelerite here.  

  • Biochar and Rock Dust

    8 members Latest Activity: Nov 18, 2018

  • Thailand

    3 members Latest Activity: Jun 2, 2012

    For farmers and gardeners in Thailand who would like to network with each other and find sources of rock dust.



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