Cannabis Cultivation and Science Podcast

Feb. 6, 2025

ABOUT THIS EPISODE

Episode 143: Trends in Environmental Controls with Dr. Greenhouse

Dr. Nadia Sabeh is the President and Founder of Dr. Greenhouse, Inc., an agricultural and mechanical engineering firm that specializes in the design of HVAC systems for indoor plant environments. Dr. Sabeh has her PhD in Agricultural Engineering from the University of Arizona’s Controlled Environment Agriculture Center (CEAC) and is a licensed Mechanical Engineer in the State of California. For over 20 years, she has dedicated her education and career to helping farmers control their environments, allowing them to grow crops indoors, in greenhouses and in facilities that would otherwise be impossible or impractical to do so.

Nadia has a free VPD app for both iPhone and Android as well as an amazing podcast called "The Doctor is in" that's available on all streaming platforms. https://www.doctorgreenhouse.com/podcast/tag/podcast

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IN THIS EPISODE

Nadia Sabeh

hvac

air flow

vpd

environmental controls

greenhouse

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Why can't you just use canola oil from your kitchen to kill spider mites? If you’ve ever wondered about the true science behind oil-based pesticides, this episode is a deep dive into the physics and chemistry of plant protection. Tad and Julie Graesch explore why oils remain one of the most effecti…

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Episode 161: The Secret Lives of Pathogens with Dr. Zamir Punja

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Key Takeaways for Cultivators The Week 3 Strategy: Preventive sprays for Botrytis must occur when the flowers are still small and "open." Once the bud swells (Weeks 6+), the pathogen is already locked inside. Airflow is Everything: Buds act as heat sinks. Use fans 24/7 to cool the internal temper…

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Foundations Series #5: Reading the Soil: Agronomy, Soil Testing & Crop Health with Lee Briese

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Key Topics & Notes • Why experienced crop consultants rely heavily on chemical soil analysis for making management decisions • The limitations of relying solely on biological soil testing • Why soil structure and aggregation play a critical role in plant health • How soil physical propertie…

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Foundations Series #4: What's Your Garden Missing? Cracking the Code of Applied Horticulture with Don Marshall

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Episode 163: Concrete Botany: Reconnecting with the Living World in the Age of Disturbance with Joey Santore

April 21, 2026

Key Takeaways & Discussion Highlights The Railroad Roots: Joey’s transition from a Union Pacific engineer to a "vigilante botanist." He discusses the influence of Carl Sagan’s The Demon-Haunted World and using science as a "candle in the dark" in a consumerist society. Botany for the "Jaded W…

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