农民为何付钱购买江户的粪肥？

Sources consulted 16 September 2026. The article concerns historical commerce, not instructions for handling sewage or growing food. Published local histories, accounts of surviving records, and later fieldwork are distinguished from direct archival examination.

1. [1]

   Katsushika Ward, digital municipal history, chapter 2, section 3, “江戸東郊農村としての葛西,” explanatory paragraph and caption identifying the 1845 Shimo-Komatsu price list. Supports regional crops, outward river transport, and spring versus summer prices. The list's numerical entries were not independently read; no price is extracted from its image. https://www.city.katsushika.lg.jp/history/history/2-3-2-123-2.html

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2. [2]

   Kayo Tajima, “The Marketing of Urban Human Waste in the Early Modern Edo/Tokyo Metropolitan Area,” Environnement Urbain / Urban Environment 1 (2007): a13–a30, introduction and §§2, 3.4–3.5. Selected prose read in the author-uploaded HTML transcription: terminology, property rights, fertilizer alternatives, and carriage. No original ledger or statistical table was independently analyzed; national-uniqueness and uniform-sanitation claims are not adopted. https://www.researchgate.net/publication/237756418_The_marketing_of_urban_human_waste_in_the_early_modern_EdoTokyo_Metropolitan_area

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3. [3]

   Japan Ministry of the Environment, Annual Report on the Environment and a Sound Material-Cycle Society, 2008, historical discussion “米や野菜の栽培におけるし尿等の肥料利用にみられる地域循環圏.” Used for the documented food/fertilizer connection and nutrient utility, not its unqualified sanitary-success language. https://www.env.go.jp/policy/hakusyo/h20/html/hj08010202.html

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4. [4]

   Same Environment Ministry section, paragraphs beginning “下肥は、江戸時代を通して” and “江戸近郊の農家は.” Supports communal privies, collection-oriented construction, and contracts paid in cash or goods. It is a modern policy report's historical synthesis, not proof of one standard contract or complete compliance throughout Edo. Same URL as note 3.

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5. [5]

   Tokyo Metropolitan Archives, “史料の解読／読み下し／解釈—明治の『言上帳』を読もう その５,” interpretive paragraph beginning “さらに、この一件で注目されるのは.” The archives' agricultural context, drawing on Nerima Ward History, supplies contracts and settlement with fresh/pickled daikon. The separate lost-cart case does not prove its owner's cargo or motives and is not reconstructed here. https://www.soumu.metro.tokyo.lg.jp/01soumu-archives/07edo_tokyo/0703kaidoku/0703kaidoku_old/0703kaidoku07/0703kaidoku07_1

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6. [6]

   Hori Mitsuhiro (堀充宏), “都市近郊農村の下肥利用,” published research-group lecture, §3 “下肥を運ぶ船,” paragraph beginning “葛飾区立石には.” Records an Ansei-era agreement for three years at twenty-two ryō and resale along the Nakagawa. The original family document was not inspected; no modern-currency conversion or transaction-wide profit is inferred. https://sinyoken.sakura.ne.jp/caffee/cayomo017.htm

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7. [7]

   Report of Hori's lecture, “第38回 屎尿研究会—都市近郊農村の下肥利用,” numbered summary points 2–6. Used for Meiji-era intermediaries, inland carriage, payment timing, and reported debt consequences. These are a museum researcher's findings as reported by the study group, not a census of all farmers. The page's inconsistent weekday/year line is not used. https://sinyoken.sakura.ne.jp/sinyou/si038.htm

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8. [8]

   Hori, “東京東郊の下肥利用の歴史,” subsection “江戸東郊と西郊,” in the same research-group page as note 7. Dates the farmers' price-reduction petition to 1789 and describes the ensuing campaign. This passage, not a newly read original petition, is the source. The general existence of late-Edo price complaints is also corroborated by the Environment Ministry account in note 4.

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9. [9]

   World Health Organization, “Soil-transmitted helminthiases,” “Overview,” paragraphs explaining fecal contamination and transmission through soil, food, and water. Used solely to distinguish nutrient value from a known biological hazard. Present global statistics are not projected onto Edo, and no claim is made that every historically stored batch remained equally infectious. https://www.who.int/health-topics/soil-transmitted-helminthiases

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10. [10]

    Matsuda Shinobu (松田忍), “『世田谷』と下肥 / Setagaya and Night-soil,” Gakuen 959 (2020): (67)–(77), published English abstract, especially its account of the 1910s shift toward nearer suburban supplies and municipalization. Full paper was not successfully retrieved. The essay uses this stated mechanism without supplying unexamined municipal budgets, universal dates, or quantities. https://swu.repo.nii.ac.jp/records/7042

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11. [11]

    Yuzawa Noriko, “Utilization of Night Soil and the Treatment of Human Waste: Urbanization and Structural Transformation of Material Circulation in the Modern Aichi Prefecture,” The Journal of Agricultural History 51 (2017): 23–38, DOI 10.18966/joah.51.0_23. Abstract consulted, for the Nagoya processing attempt, financial/odor problems, and continuing agricultural use. No plant operating records or detailed chronology beyond the abstract are claimed. https://www.jstage.jst.go.jp/article/joah/51/0/51_23/_article/-char/en

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