The Confluence
Sam KnowltonBringing together agriculture, ecology, food, and health.
| Platform |  | Pricing | Only free issues | Publishes | Weekly |
|---|---|---|---|---|---|
| Issues | 25 | Founded | 4 years ago | Last Issue | 20 days ago |
| Active | |||||
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samknowlton.substack.comLatest Issues
Terra Preta and the Limits of Biochar
Patches of dark, exceptionally fertile soil are scattered across the Amazon Basin along river bluffs and ancient pathways, in a landscape where the surrounding soil is aluminum-toxic, severely leached, and low in soil carbon. Indigenous Ama...
Agriculture's Other Microbiome
Over the past two decades, agriculture has begun to recognize soil as a living system, one where microbial communities cycle nutrients, suppress disease, and store carbon. What this understanding has missed is that the soil microbiome, for...
Coffee Leaf Rust and the Limits of Genetic Resistance
Ceylon’s Coffee Crisis
In 1869, small pale-yellow spots appeared on coffee leaves in Ceylon (today known as Sri Lanka), marking what would become one of agriculture’s most consequential disease outbreaks. The fungus responsible would ev...
How Microbes Rewrite the Rules of Plant Nutrition
Plants have traditionally been understood as independent organisms with well-defined physiological limitations, particularly regarding the movement of minerals through their vascular systems. This understanding crystallized over centuries—f...
The Collapse of Florida's Citrus Empire
Florida's citrus industry, once the crown jewel of American agriculture, has experienced a dramatic decline that serves as a wake up call about the vulnerabilities of industrial monoculture farming. From a peak production of 244 million box...
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| Subscribers | Engagement | 71 | Monthly Web Visits | ||
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| Accepts Sponsors | Estimated Cost per Ad | ||||
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