Orchard research, translated for the field.
Growing the Valley is a research-driven orchard show from UC Agriculture and Natural Resources. Its episodes connect growers with farm advisors and researchers working on pistachios, almonds, walnuts, irrigation, soil amendments, climate pressure, and weed management.
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Growing the Valley is a field-facing agricultural science show centered on orchard crops in California. It comes from UC Agriculture and Natural Resources, and its working style is direct: start with a crop problem, ask what the evidence says, and keep track of what the evidence does not yet prove. The show spends real time inside the mechanics of orchard production. Pistachio episodes examine internal kernel discoloration, polyphenol deposition, pollen parent effects, cultivar differences, and the limits of current understanding. Almond episodes move between irrigation timing, carbohydrate reserves, canopy development, hull and shell amendments, potassium cycling, and soil microbial responses. Walnut episodes focus on dormancy, low-chill winters, and rest-breaking agents. Weed episodes consider Johnsongrass, bindweed, climate change, drought, CO2, precipitation shifts, and the economics of control. Water outlook conversations frame groundwater, surface water, rain, soil moisture, recycled water, and recharge as parts of a grower water portfolio. The pace is conversational, but the vocabulary is not simplified past usefulness. Guests are allowed to explain trial design, sampling limits, year effects, genotype-by-environment interactions, and why one season of data rarely settles a question. That makes the show especially useful for people who work near the decision point: farm advisors, growers, crop consultants, researchers, and orchard managers comparing options under imperfect conditions. It is not a general gardening show. It is a practical research bridge for almonds, pistachios, walnuts, prunes, and related orchard systems. The strongest episodes turn narrow questions into broader management thinking, such as how soil water from winter supports early canopy growth, why microbial diversity matters under organic amendments, or how climate pressure may extend weed growth windows. The show's value is its restraint. It reports useful findings, names uncertainty clearly, and keeps the grower problem in view.
Made for: For California orchard growers, farm advisors, crop consultants, researchers, and agricultural students who want detailed production research tied to real management decisions. It best suits listeners comfortable with technical crop, soil, irrigation, and pest-management vocabulary.
What sets it apart: The show pairs farm advisor field knowledge with active research conversations, often tracing a grower question through experiments, results, and remaining uncertainty. Its focus is unusually specific to orchard systems and California production realities.
This is a podcast that goes over new research and basic information about growing orchard crops in the Central Valley of California
Almond hulls become a microbial census, if your orchard curiosity runs that deep.
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Short reviews from the PlayNext desk, based on the episodes we processed.
A grower's question leads to a closer look at how male pollinizers may affect pistachio kernel discoloration.
Growing the Valley starts with a practical grower question: why Australian growers were reportedly seeing little internal kernel discoloration, or polyphenol deposition, even in Golden Hills.
A focused almond irrigation discussion connects stored carbohydrates, spring growth, and the risk of delayed water.
Almond irrigation comes through here as a problem that stretches across seasons. Or Spurling and Maches Vignetski describe how almond trees carry carbohydrates through winter, then spend those reserves on flowers and early canopy before the current year's canopy begins helping…
A darkened pistachio kernel becomes a clear case study in how plant chemistry can explain a field disorder.
A dark spot or ring on a pistachio kernel opens into a focused plant science discussion with UC Davis researchers Min Min Wang and Georgia Drakakaki.
A Cornell weed specialist turns climate change into a practical question of timing, water, and control.
Climate change gives weed management a longer, less predictable season, and Growing the Valley brings that problem down to field level. A Cornell horticultural crops weed specialist walks through how heat, increased CO2, drought, shifting precipitation, and human activity can…
Almond hulls and shells are framed as potassium-rich amendments that can support a broader orchard soil microbial community.
Almond hulls and shells come through as more than orchard leftovers here: they are framed as amendments that can add potassium while building a more active soil habitat.
Documentary storytelling on ecology and Indigenous land stewardship, hosted by Mendel and Adam.
Books, systems, and the questions that unlock them.
Coastal science, patiently and beautifully reported.
Soil life, climate repair, practical regeneration.
Growing the Valley examines Julia Marino's experiments on whether pistachio pollen parents affect polyphenol deposition, also called internal kernel discoloration.
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Growing the Valley's "Polyphenol deposition in pistachios" follows UC Davis researchers Min Min Wang and Georgia Drakakaki as they trace internal kernel discoloration, or IKD, in pistachios.
Luke Melliron and Phoebe Gordon host Lynn Sosnoskie, a Cornell weed ecology and management professor who spent five years with Brad Hansen at UC Davis, for a climate-change episode about weeds.
Almond hulls and shells can return roughly 30 to 50 pounds of potassium per acre for every ton applied, and Ellie Andrews says processors sometimes deliver the material for free when they need to clear space.
Luke Miller interviews Ryan Hill, a new UC Cooperative Extension weed science advisor, about his background and program focusing on weed management in orchards.
Katherine Jarvis-Shean discusses her research on walnut dormancy and rest-breaking agents, sharing results from a trial that has moved into production.
Sam Sandovol Solis discusses the 2025 water outlook for California, analyzing past predictions and current conditions.
Tom Devol discusses the fundamentals of irrigation, focusing on distribution uniformity and its impact on orchard efficiency.
Jhalendra Rijal provides an update on the invasive Carpophilus truncatus beetle in California almond and pistachio orchards, discussing its origin, spread, and recent research findings.