Unlocking Soil Secrets (& Science) with Brandon Rust

In this episode of the Bioactive Podcast, Dr. Riley Kirk is joined by Brandon Rust, founder and CEO of FulCrop Sciences, for a fascinating conversation about the hidden biological systems that drive plant health and productivity. Brandon shares insights from years of cultivation experience, explaining how modern growing practices have shifted away from natural ecosystem processes and why rebuilding biological balance may be one of the most important steps for improving plant performance and long-term sustainability. The discussion explores how microbes, organic matter, mineral interactions, and natural nutrient cycling influence everything from root development to crop resilience and overall plant quality. Brandon also breaks down practical approaches growers can use to better support healthy ecosystems while reducing dependence on heavily synthetic inputs. They also discuss practical cultivation strategies for home growers and commercial cultivators alike, including compost teas, microbial inoculants, biological crop steering, mineral balancing, and the importance of understanding soil as a dynamic ecosystem rather than an inert growing medium. The discussion further examines the intersection of plant science, sustainability, cannabis cultivation, food systems, and the future of regenerative farming. Throughout the episode, Brandon shares insights into biological fertility, plant stress responses, nutrient cycling, and how healthier soils can ultimately lead to healthier plants and healthier people. Whether you’re interested in regenerative agriculture, cannabis cultivation, soil science, plant biology, sustainable farming, or microbial ecology, this episode is packed with practical insights and science-backed education. Chapters: 00:00 Childhood Foster Trauma 01:05 Podcast Intro Guest Setup 02:57 Night Terrors And Meds 06:24 Rebellion Cannabis Awakening 10:39 Hard Living Jail Time 12:18 Finding Family OG Growers 14:41 Electricity Tap First Grow 18:37 Science Mind Organic Shift 27:07 Agronomy Regenerative Basics 33:58 Soil Carbon Microbes Cycles 38:12 Living Soil Vs Mixes Brand 39:31 Choosing The Right Formula 40:54 Fixing Sandy Acidic Soil 41:28 Fulvic Acid Benefits Explained 42:20 Why Synthetic Fertilizer Wastes Energy 44:48 Soil Building And Carbon Nitrogen Ratios 47:03 Sulfur Aminos And Skunky Terps 50:56 Flushing Myths And Ash Color 54:29 Water Quality pH And Soil Tests 56:23 Nutrient Calculator And Data Workflow 58:41 Terroir VPD And Calcium Dynamics 01:04:35 Biological Crop Steering Microbes 01:12:50 Where To Learn More And Final Wrap Connect with Brandon Rust & FulCrop Sciences Follow Brandon and FulCrop Sciences for more information on regenerative agriculture, soil biology, microbial systems, and carbon-based fertility: Instagram: www.instagram.com/brandonrust TikTok: www.tiktok.com/@fulcropsciences Podcast: www.youtube.com/@fulcropsciences Website: FulCrop Sciences Want Exclusive Content and ad-free episodes? Join the Bioactive Patreon community for as little as $1/month to ask guests your burning questions, access exclusive content, and connect with Dr. Kirk one-on-one. www.Patreon.com/Cannabichem Learn more about your ad choices. Visit megaphone.fm/adchoices