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Cannabis Cultivation and Science PodcastAuthor: Tad Hussey
Welcome to the Cannabis Cultivation and Science podcast, Im your host, Tad Hussey of KIS Organics. This is the podcast where we discuss the cutting edge of organic growing from a science based perspective and draw in top experts from around the industry to share their wisdom and knowledge. If you want to hear the latest in growing technology and methods, this is the place.. Language: en Genres: Home & Garden, Leisure, Natural Sciences, Science Contact email: Get it Feed URL: Get it iTunes ID: Get it |
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Episode 165: Boosting Yields 50% with a 13-Hour Photoperiod? Debunking Cannabis Science with Dr. Youbin Zheng
Episode 165
Tuesday, 19 May, 2026
In this episode, we discuss: Bridging the Genetic Gap: Looking critically at how horticultural research transfers between high-THC cultivars and industrial hemp. The 13-Hour Photoperiod: Breaking the traditional 12/12 cycle to achieve a 39%–50% yield increase and a 9% THC boost. Linear Light Scaling: The direct relationship between light intensity and flower yield scaling all the way up to 1,800 micromoles under ambient CO2. The UV Reality Check: Why modern high-THC genetics actually showed a decrease in final cannabinoid and terpene content under supplemental UVA and UVB. Light Response Curves: Why relying on a single leaf measurement to guide your facility's light saturation point is fundamentally flawed. The Veg-to-Flower Transition: Practical SOPs for adjusting PPFD and DLI safely without shocking your canopy. Controlled Deficit Irrigation: How a single, targeted late-flower drought stress event triggers a 12%–13% spike in final THC and CBD content. The 60 PPM Phosphorus Rule: Looking at the established replication data proving that excess phosphorus wastes money, reduces yield efficiency, and impacts the environment. Links & Resources Mentioned in This Episode: Visit KIS Organics for commercial living soils, amendments, and consulting: https://www.kisorganics.com Grab Dr. Zheng's textbook, Handbook of Cannabis Production in Controlled Environments: https://www.amazon.com/Handbook-Cannabis-Production-Controlled-Environments/dp/0367712571 Access Dr. Zheng’s open-access research papers on Google Scholar: https://scholar.google.com/citations?user=ciGdnWAAAAAJ&hl=en Connect with us on Instagram: @kisorganics Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.
