The
history of the modern world, from the period of industrialization on, has been
characterized by a rapidly growing population and the struggle to accelerate
food production to sustain that population. This struggle has manifested
itself, repeatedly, in tragic episodes of human suffering centered on food and
nutrition. The Great Famine in Ireland, the Indian Famine of 1899, and various
food crises during the American Dust Bowl all serve as examples of the human
fight to maintain a stable economy in the face of a growing, hungry population.
By
the 19th century, the population of the world totaled
1 billion. Scientists and economists asked themselves, “How can the
global marketplace sustain that many people?” Agriculture needed a simple
solution. For inspiration, scientists looked to historical precedent. Farmers
had long added extra materials to the soil to positively affect fertility and
crop growth. Manure had been popular for millennia, but farmers also used more refined materials like
wood ash, gypsum, and guano.
Justus
von Liebig
In
the 1840s, the field of fertilizer science was advanced further by the
contributions of Justus von Liebig. Liebig was the first to make the case for the use
of ammonia in boosting crop growth and plant nutrition. He also attempted to
create a commercially viable alternative to guano by treating phosphate of lime
in bone meal with sulfuric acid, though this never proved successful. But he
did convince farmers to use ammonia as a source of nitrogen, one of the primary
nutrients for plant growth.
In
the 20th century, Fritz Haber and Carl Bosch pioneered the
Haber-Bosch process, still in practice today, as a way to mass-produce ammonia,
making it cheaper and widely available for farmers. This was an important
period in the development of fertilizer science.
A tabletop
apparatus demonstrating the Haber-Bosch process.
The
Haber-Bosch process, along with the Oswald process for the production of nitric
acid and Erling Johnson’s industrial method for producing nitrophosphate, all
developed in response to the food crisis of 1899, spearheaded the development
of new fertilizers into industrial commodities capable of being mass-produced
and widely distributed.
In
the 1930s, America endured its own crisis of food security, rooted in a
collapsing economy and an unforeseen environmental disaster. The Dust Bowl had
ravaged the soils in America’s rustbelt, making it impossible for farmers to
produce enough food to sustain the swelling population. In response, President
Franklin Delano Roosevelt implemented his New Deal plan for boosting the
post-Great Depression economy. This specifically affected Muscle Shoals,
Alabama, where a nitrate plant, built to create munitions for World War I,
stood dormant. Here, the Tennessee Valley Authority’s National Fertilizer
Development Center (NFDC) was established – which would later give birth to the
International Fertilizer Development Center (IFDC). Muscle Shoals became the
cornerstone for America’s new fertilizer industry, which would be enough to
lift the U.S. agricultural economy out of depression and begin a new era of
development.
All
the old methods of producing nitrate, phosphate, and ammonia were implemented
in Muscle Shoals, while new ones were developed and applied, allowing the world
to enter an innovative phase of food production. The world was better prepared
to handle food security crises; where there was a famine, a Green Revolution
would likely follow (as it did in Mexico and India), and IFDC was established
as a way to mitigate food crises in the developing world by passing on
technology and training.
Modern
food crises are different than the old ones. The world is populating quicker
than ever before – with an expected 10 billion by 2050. With no more land and
water with which to produce more food, future solutions must rely on new
technologies to double crop yields on existing agricultural space. And more
food must be produced in a way that has less impact upon the environment
compared to current practices.
Recent
developments such as fertilizer deep placement (FDP) are helping, but
these are short-term solutions. Each day, we ask ourselves, “What is the
long-term answer?” While an important concern, the agriculture industry has
proven time after time that it is capable of rising to the challenge. But this
is a sign of hope, because with a foundation for modern agricultural development
in place, we are now better prepared to address the enduring issue of food
security.
https://ifdc.org/2016/06/21/fertilizer-a-foundation-for-food-security/
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