Eugenio Gras on biofertility & chromatography

Eugenio Gras from Mas Humus explaining about DIY Biofertilisers & the simple soil analysis method of Chromatography after teaching a 3 day RegenAG workshop at Cowdray, England in July 2013.

More info: Regen AG
Produced by: Regen AG
Language: English
Year: 2013
Region: England, Global

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June 24, 2020  
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