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Fertilizer: The forgotten history linking the agricultural commodity and empire in wartime

Phys · · 927 words · By Lorenzo Feltrin
Colonialism and Imperialism Fascist Economic Policy Geopolitics of Agriculture

The article discusses the historical relationship between fertilizer production, colonial expansion, and geopolitical conflict, specifically focusing on the 19th and 20th centuries. It draws parallels between past imperialist resource scrambles and current global tensions affecting agricultural inputs.

open_in_new Read the original article: https://phys.org/news/2026-05-fertilizer-forgotten-history-linking-agricultural.…

analyticsAnalysis

40%
Propaganda Score
confidence: 90%
Moderate concerns. Notable use of persuasive or loaded language.

psychologyDetected Techniques

warning
Loaded Language 90% confidence
Using words with strong emotional connotations to influence an audience.
warning
Name Calling / Labeling 80% confidence
Attaching a negative label to a person or group to reject them without evidence.
warning
Exaggeration / Hyperbole 70% confidence
Overstating facts or claims to create a stronger emotional response.

fact_checkFact-Check Results

13 claims extracted and verified against multiple sources including cross-references, web search, and Wikipedia.

info Single Source 5
check_circle Corroborated 3
schedule Pending 3
verified Verified By Reference 2
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“A large share of the world's traded chemical fertilizers normally pass through this strategic chokepoint [Strait of Hormuz], alongside key feedstocks needed to produce fertilizers elsewhere, such as gas, ammonia and sulfur.”
CORROBORATED
Multiple web search results confirm the Strait of Hormuz is a critical chokepoint for energy and fertilizer feedstocks, specifically mentioning urea, ammonia, sulfur, and natural gas.
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web search NEUTRAL — The interruption of oil and gas supplied through the Strait of Hormuz due to the US-Israel war with Iran has dramatically pushed up global energy prices.A host of other vitally important chemicals, ga…
https://www.bbc.com/news/articles/c4gjxv5g19no
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web search NEUTRAL — Roughly half of all fertilizer feedstock exports in the world pass through the Strait of Hormuz on a typical day. Chemicals like urea, ammonia, sulfur, hydrogen, natural gas, and nitrogen are critical…
https://oilprice.com/Energy/Energy-General/Fertilizer-Prices…
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web search NEUTRAL — Shipping traffic through the Strait of Hormuz, a major maritime choke point for world energy trade, has been largely blocked by Iran since 28 February 2026, when the United States and Israel launched …
https://en.wikipedia.org/wiki/2026_Strait_of_Hormuz_crisis
verified
“Since the 1840s, phosphorus and nitrogen-rich guano have been extracted from Peruvian islands for export to the Global North.”
VERIFIED BY REFERENCE
Wikipedia and other authoritative sources confirm that guano (rich in nitrogen and phosphorus) was extracted from Peruvian islands (specifically the Chincha Islands) starting around 1840 for export.
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wikipedia NEUTRAL — A phosphate is an anion, salt, functional group or ester derived from a phosphoric acid. It most commonly means orthophosphate, a derivative of orthophosphoric acid, a.k.a. phosphoric acid H3PO4. The…
https://en.wikipedia.org/wiki/Phosphate
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wikipedia NEUTRAL — Phosphorus is a chemical element; it has symbol P and atomic number 15. All elemental forms of phosphorus are highly reactive and are therefore never found in nature. Elemental phosphorus can be prepa…
https://en.wikipedia.org/wiki/Phosphorus
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wikipedia NEUTRAL — Peru is a country on the central western coast of South America facing the Pacific Ocean. It lies wholly in the Southern Hemisphere, its northernmost extreme reaching to 1.8 minutes of latitude or abo…
https://en.wikipedia.org/wiki/Geography_of_Peru
+ 4 more evidence sources
verified
“In the 1860s, Spain's attempt to wrest such a treasure away from British hegemony resulted in the Chincha Islands War”
VERIFIED BY REFERENCE
Wikipedia explicitly confirms the existence of the Chincha Islands War (1865-1879) between Spain and its former colonies over the control of guano deposits.
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wikipedia NEUTRAL — The Chincha Islands (Spanish: Islas Chincha) are a group of three small islands 21 kilometres (13 mi; 11 nmi) off the southwest coast of Peru, to which they belong, near the town of Pisco. Since pre-I…
https://en.wikipedia.org/wiki/Chincha_Islands
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wikipedia NEUTRAL — The Chincha Islands War, also known as Spanish–South American War (Spanish: Guerra hispano-sudamericana), was a series of coastal and naval battles between Spain and its former colonies of Peru, Chile…
https://en.wikipedia.org/wiki/Chincha_Islands_War
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wikipedia NEUTRAL — Gerona was a Spanish Navy screw frigate in commission from 1865 to 1899. She took part in combat operations during the Chincha Islands War, the Ten Years' War, and the First Melillan Campaign. She was…
https://en.wikipedia.org/wiki/Spanish_frigate_Gerona
+ 3 more evidence sources
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“Nitrogen supplies were thus ensured by Chile's nitrate mines, over which British interests encouraged the War of the Pacific (1879-1884) between Chile, Bolivia and Peru.”
CORROBORATED
Multiple sources confirm the War of the Pacific (1879-1884) was fought between Chile, Bolivia, and Peru over nitrate deposits in the Atacama Desert. While the 'British interests encouraged' part is a common historical interpretation found in the cross-reference, the core factual event is verified.
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wikipedia NEUTRAL — Anti-Peruvian (Spanish: Antiperuanismo), or Peruvophobia, refers to negative feelings, fear, hatred and discrimination toward and/or against Peruvians based on a combination of historical, cultural, …
https://en.wikipedia.org/wiki/Anti-Peruvian_sentiment
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wikipedia NEUTRAL — International relations between the Republic of Chile and the Plurinational State of Bolivia have been complex ever since independence in the early 19th century because of the Atacama border dispute. …
https://en.wikipedia.org/wiki/Bolivia–Chile_relations
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wikipedia NEUTRAL — The War of the Pacific (Spanish: Guerra del Pacífico), also known by multiple other names, was a war between Chile and a Bolivian–Peruvian alliance from 1879 to 1884. Fought over Chilean claims on coa…
https://en.wikipedia.org/wiki/War_of_the_Pacific
+ 4 more evidence sources
info
“German chemist Fritz Haber... demonstrated how to industrially fix nitrogen from thin air.”
SINGLE SOURCE
The specific claim is only found in the cross-reference. The web search results provided were irrelevant (tennis player, router brand, dictionary definition), failing to provide independent corroboration for the industrial nitrogen fixation claim in the provided evidence set.
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web search NEUTRAL — Taylor Harry Fritz (born October 28, 1997) is an American professional tennis player. He has been ranked by the Association of Tennis Professionals (ATP) as high as world No. 4 in singles, which he ac…
https://en.m.wikipedia.org/wiki/Taylor_Fritz
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web search NEUTRAL — Discover FRITZ! – Find out about the versatile, user-friendly solutions for your internet connection and home networking.
https://fritz.com/en/
travel_explore
web search NEUTRAL — Apr 17, 2026 · The meaning of FRITZ is a state of disorder or disrepair —used in the phrase on the fritz. How to use fritz in a sentence.
https://www.merriam-webster.com/dictionary/fritz
+ 1 more evidence source
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“Between the 19th century and the early 20th century, France gained control over major phosphate reserves through its colonial domination of Tunisia, Algeria and Morocco.”
CORROBORATED
The cross-reference states this, and Wikipedia confirms French colonial rule over Tunisia, Algeria, and Morocco during the specified timeframe. While the Wikipedia snippet doesn't explicitly mention 'phosphate' in the summary, the colonial domination is verified, and the claim is corroborated by the cross-reference.
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wikipedia NEUTRAL — Thapsia gummifera (syn. Margotia gummifera) is a species of flowering plant in the family Apiaceae, native to the western Mediterranean; Portugal, Spain, Morocco, Algeria, and Tunisia. It has been pro…
https://en.wikipedia.org/wiki/Thapsia_gummifera
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wikipedia NEUTRAL — Spahis (French pronunciation: [spa.i]) were light-cavalry regiments of the French army recruited primarily from the Arab and Berber populations of Algeria, Tunisia and Morocco. The modern French Army …
https://en.wikipedia.org/wiki/Spahi
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wikipedia NEUTRAL — The Arabic names of the months of the Gregorian calendar are usually phonetic Arabic pronunciations of the corresponding month names used in European languages, or in the case of the Gulf Countries an…
https://en.wikipedia.org/wiki/Arabic_names_of_Gregorian_mont…
+ 4 more evidence sources
info
“The Italian nationalist press promoted the idea that Libya contained enormous phosphate wealth... This became part of the political campaign for the Italian invasion of Libya in 1911.”
SINGLE SOURCE
Wikipedia and other sources confirm the 1911 Italian invasion of Libya. However, the specific detail that the 'nationalist press promoted phosphate wealth' as a political campaign tool is not explicitly detailed in the provided search results, appearing only in the original claim context.
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wikipedia NEUTRAL — The Italian colonization of Libya began in 1911 and it lasted until 1943. The country, which was previously an Ottoman possession, was occupied by Italy in 1911 after the Italo-Turkish War, which resu…
https://en.wikipedia.org/wiki/Italian_colonization_of_Libya
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wikipedia NEUTRAL — The Kingdom of Libya (Arabic: المملكة الليبية, romanized: Al-Mamlakah Al-Lībiyya, lit. 'Libyan Kingdom'; Italian: Regno di Libia), known as the United Kingdom of Libya from 1951 to 1963, was a constit…
https://en.wikipedia.org/wiki/Kingdom_of_Libya
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wikipedia NEUTRAL — Libya (Italian: Libia; Arabic: ليبيا الايطالية, romanized: Lībyā al-Īṭālīya) was a colony of the Kingdom of Italy (Fascist Italy) located in North Africa, in what is now modern Libya, between 1934 and…
https://en.wikipedia.org/wiki/Italian_Libya
+ 3 more evidence sources
info
“fascist general Rodolfo Graziani committed genocide in Cyrenaica to isolate the rebels led by Omar al-Mukhtar.”
SINGLE SOURCE
The cross-reference explicitly mentions the genocide by Graziani. Web search results confirm Graziani's role and Omar al-Mukhtar's resistance, but do not explicitly use the term 'genocide' or detail the specific strategy to isolate rebels in the provided snippets.
travel_explore
web search NEUTRAL — Rodolfo Graziani was born in Filettino in the province of Frosinone on August 11, 1882.[4] His father, Filippo Graziani, was the village doctor. He was educated in a seminary in the town of Subiaco an…
https://en.wikipedia.org/wiki/Rodolfo_Graziani
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web search NEUTRAL — In Libya, Omar al-Mukhtār is considered a national hero for having led the resistance against the Italian invasion of Libya starting in 1911. In December 1928, the government of Cyrenaica and Tripolit…
https://www.protestinphotobook.com/post/the-martyr-omar-al-m…
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web search NEUTRAL — Omar al-Mukhṭār Muḥammad bin Farḥāṭ al-Manifī was born in 1858 to a family in the town of Zanzur near Tobruk, in the region of Ottoman Cyrenaica, belonging to the Senussi (who were seen as Libyan Ashr…
https://ilkha.com/english/analysis/today-marks-the-89th-anni…
+ 1 more evidence source
info
“Italian companies gained direct access to phosphate extraction in Tunisia and Egypt, which were however under French and British control, respectively.”
SINGLE SOURCE
This specific detail about Italian companies accessing phosphate in French-controlled Tunisia and British-controlled Egypt is only present in the cross-reference.
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cross reference SUPPORTS — Italian companies gained direct access to phosphate extraction in Tunisia and Egypt, which were however under French and British control, respectively.
https://theconversation.com/fertiliser-the-forgotten-history…
info
“Archival records show explicitly racialized wage schemes in which Arab workers received significantly lower pay than Europeans.”
SINGLE SOURCE
The claim regarding racialized wage schemes in archival records is only supported by the single cross-reference provided.
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cross reference SUPPORTS — Archival records show explicitly racialised wage schemes in which Arab workers received significantly lower pay than Europeans [in North African mines].
https://theconversation.com/fertiliser-the-forgotten-history…
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“In 1925, the fascist regime launched the "Battle for Grain", an ambitious campaign to increase Italian wheat production and reduce reliance on imports.”
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“Italy's chemical giant Montecatini massively expanded fertilizer production”
PENDING
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“As soon as Italy entered WWII, the British requisitioned its phosphate mines in Egypt.”
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info Disclaimer: This analysis is generated by AI and should be used as a starting point for critical thinking, not as definitive truth. Claims are verified against publicly available sources. Always consult the original article and additional sources for complete context.