TAKE PART IN HARLEY'S NEXT LIVE & INTERACTIVE 12-WEEK WEBINAR COURSE! (link below)
http://www.npk-university.com/classes...

We also offer 14 different pre-recorded video classes individually, in bundles, and as the full course - at: growclasses.npk-industries.com
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Base nutrients provide all of the essential elements that plants need, but organic bio-stimulants help with the uptake of nutrients. This class will teach you how to use organic bio-stimulants to improve the nutritional value of food, while increasing a plant's natural resistance to pests and disease. Even advanced growers will benefit from this in-depth class.