What Is OHN? OHN is a mixture of edible, aromatic herbs extracted with alcohol and fermented with brown sugar. It is used to discourage the growth of anaerobic, potentially pathogenic microbes and encourage beneficial aerobic microbes in the soil and on plants. Herbs long recognized by many ancient cultures as having such prebiotic properties include fresh ginger root (Zingiber officinale), turmeric root (Curcuma longa), garlic cloves (Allium sativum), the bark of Angelica acutiloba, licorice root (Glycurrhiza uralensis), and cinnamon bark (Cinnamomum sp.) (Chow 2002, Sarker and Nahar 2004, Castleman. 2010, Naz et al. 2010, Jayaprakasha and Rao 2011, Maekawa et al. 2013, Ming and Yin 2013, Yadav et al. 2013). These herbs are used in the creation of OHN.
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