Farmers of Forty Centuries

Cultural

Farmers of Forty Centuries is the book through which most of the founders of the Western organic and permanent-agriculture movements first encountered the proof that durable, dense-population, soil-building agriculture had already been practiced for thousands of years on the same land. Howard read it. Balfour read it. Rodale read it and republished it. Lord Northbourne (who coined [[organic-agriculture|organic farming]]) called it a classic that “no student of farming or social science can afford to ignore.” [[bill-mollison|Bill Mollison]] cited it in the foundational permaculture literature. The book is the empirical substrate beneath every Western argument that civilizational-timescale agriculture is possible.

King’s research method was simple and modern: he went, he watched, he asked questions, he took notes, he photographed. The book is part travelogue, part field-research report, part argument. The chapters trace his route — from southern China up through the rice-growing south, across to the silk and tea regions, into Manchuria, then Korea, then Japan from Nagasaki to Hokkaido. At every stop he documented:

• Soil management — how the farmer fed [[soil|the soil]] between crops
• Water management — irrigation, drainage, terracing, paddy systems
• [[crop-rotation|Crop rotation]] and intercropping — what followed what, what grew alongside what
• Nutrient recycling — including, in extensive detail, the East Asian systems for collecting, composting, and applying human waste (“night soil”) that Western agriculture had abandoned with the sewer system
• Labor and knowledge transmission — the family and village structures that carried the practice across generations
• Productivity per acre — King’s numbers were extraordinary; the East Asian peasant fed many more people per acre than the American farmer of his era, on land that had been farmed for forty centuries to the American farmer’s three.

The book closes with a chapter — written largely by Carrie after King’s death — that distills the argument and presses the American reader to learn from what King had documented. The closing question is the central one: if East Asian peasants have sustained themselves on the same land for forty centuries, and Americans are mining [[soil|the soil]] of new continents in two or three generations, who is the more advanced agriculturalist?

Practical

King’s most operationally consequential contributions:

• The closed nutrient cycle including human waste. This is the part of the East Asian system that Western agriculture has most aggressively avoided. King’s detailed documentation of safe composting and application of night soil — at scale, for centuries, without epidemic disease — is a standing rebuke to the Western sewer-and-treatment-plant approach that throws away half the nutrient flow of a city. For 0mn1.one’s autonomous-farm and bioregional-densification work, this material is essential reading.
• Intensive small-scale rotation and intercropping. King documents working systems that yield far more per acre than the contemporary American norm, through density and diversity of cropping rather than chemical inputs.
• Aquatic integration. Rice paddies, fish ponds, duck-and-rice systems, canal networks — King’s documentation of integrated terrestrial-aquatic agriculture predates the “integrated multi-trophic aquaculture” Western literature by eighty years.

Where to read it

The book is in the public domain. Full text free at:

• Internet Archive: https://archive.org/details/farmersoffortyce00kinguoft
• Project Gutenberg: https://www.gutenberg.org/ebooks/5350
• [[the-soil-and-health|Soil and Health]] Library: https://soilandhealth.org/book/farmers-of-forty-centuries/

Rodale Press kept the book in print through most of the twentieth century; second-hand copies of the Rodale edition are still easy to find.

See also

Auto-generated from this entry’s typed relations: frontmatter, grouped by relation type so the editorial signal isn’t flattened.

• Shares approach with: [[an-agricultural-testament]] · [[tree-crops-permanent-agriculture]] · [[the-one-straw-revolution]]
• Contains: [[permanent-agriculture]]
• Member of: [[book]]
• Voiced by: [[fh-king]]