See how he cleans heavy metals, mainly iron (Fe) from irrigation water for the organic marijuana garden. Organic fertilizer is pumped to outdoor marijuana garden regularly.
Marijuana plants in big root-pruning pots and other cannabis plants planted in the ground.
Most of cannabis seed varieties are localized and originated in Europe.
Marijuana grower is learning sustainable marijuana gardening.
Jorge’s forum, www.marijuanagrowing.com
Learn more from Jorge Cervantes best book yet; The Cannabis Encyclopedia available now at: https://goo.gl/7l2Ymt
Or take Jorge’s online courses at THC University http://THCUniversity.org