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Asia’s growing pains

Fertilizer shortages are sowing trouble for a continent’s farmers, and the Strait of Hormuz is not the only reason

Hong kong
The Globe and Mail
Narinder Nanu/AFP via Getty Images
Narinder Nanu/AFP via Getty Images

It’s planting season across much of Asia, but many farmers are not sowing seeds because there is no fertilizer for their crops.

That could spell disaster for millions of people down the line, with food shortages compounding a fuel crisis and rampant inflation caused by the U.S.-Israeli war on Iran.

About a third of the world’s supply of fertilizer passes through the Strait of Hormuz, the key international waterway that has been essentially closed for months owing to the ongoing attacks and threats from both Iran and the U.S. against ships that try to sail through the passage.


The problem is not just shipping-related: Natural gas is a key input for the production of many nitrogen-based fertilizers such as urea and ammonia, and liquefied natural gas supplies have been massively disrupted not only by the closure of strait but also by strikes on gas fields in Qatar and Iran.

“The most dangerous misconception is that energy and food are separate silos. In reality, they are a single, connected system. In the rice-farming heartlands of Cambodia, Myanmar, and Vietnam, energy is food,” Nischal Dhungel, a fellow at the Nepal Institute for Policy Research, wrote last week. “Diesel powers the irrigation pumps and the tractors; natural gas is the primary feedstock for urea and ammonia fertilizers.”

Open this photo in gallery:

A farmer casts urea on her mustard field in the northern Indian city of Allahabad in January, 2015.Jitendra Prakash/Reuters

How urea is made

STEP 1: HABER-BOSCH PROCESS

Hydrogen

Natural gas

Nitrogen

Carbon

Oxygen

Nitrogen gas (N2)

Hydrogen gas (H2)

The gases,

combined in a

1 to 3 ratio, are

heated to 450°C and

pressurised to 200

atmospheres, where

they react with

aniron catalyst to

form ammonia

Unreacted gases are recycled

Iron catalyst

Cooled ammonia gas becomes liquid

Ammonia

(NH3)

STEP 2: UREA SYNTHESIS

Inside a reactor, ammonia and CO2 form ammonium carbamate

(NH2COONH4)

Carbon

dioxide

(CO2)

Ammonium carbamate is decomposed to produce urea and water

Urea

(NH2CONH2)

Water

(H2O)

Note: Process has been greatly simplified for illustration purposes.

The water is evaporated and the urea is solidified, then granulated

THE GLOBE AND MAIL, SOURCE: NEW ZEALAND INSTITUTE OF CHEMISTRY; CHEMGUIDE; PUBCHEM

How urea is made

STEP 1: HABER-BOSCH PROCESS

Hydrogen

Natural gas

Nitrogen

Carbon

Oxygen

Nitrogen gas (N2)

Hydrogen gas (H2)

The gases,

combined in a

1 to 3 ratio, are

heated to 450°C and

pressurised to 200

atmospheres, where

they react with

aniron catalyst to

form ammonia

Unreacted gases are recycled

Iron catalyst

Cooled ammonia gas becomes liquid

Ammonia

(NH3)

STEP 2: UREA SYNTHESIS

Inside a reactor, ammonia and CO2 form ammonium carbamate

(NH2COONH4)

Carbon

dioxide

(CO2)

Ammonium carbamate is decomposed to produce urea and water

Urea

(NH2CONH2)

Water

(H2O)

Note: Process has been greatly simplified for illustration purposes.

The water is evaporated and the urea is solidified, then granulated

THE GLOBE AND MAIL, SOURCE: NEW ZEALAND INSTITUTE OF CHEMISTRY; CHEMGUIDE; PUBCHEM

How urea is made

STEP 1: HABER-BOSCH PROCESS

Nitrogen gas (N2)

Hydrogen gas (H2)

Natural gas

Legend

The gases, combined in a 1 to 3 ratio, are heated to 450°C and pressurised to 200 atmospheres, where they react with an iron catalyst to form ammonia

Hydrogen

Nitrogen

Carbon

Oxygen

Unreacted gases are recycled

Iron catalyst

Ammonia

(NH3)

Cooled ammonia gas becomes liquid

STEP 2: UREA SYNTHESIS

Inside a reactor, ammonia and carbon dioxide form ammonium carbamate

(NH2COONH4)

Carbon dioxide

(CO2)

Ammonium carbamate is decomposed to produce urea and water

Urea

(NH2CONH2)

Water

(H2O)

Note: Process has been greatly simplified for illustration purposes.

The water is evaporated and the urea is solidified, then granulated

THE GLOBE AND MAIL, SOURCE: NEW ZEALAND INSTITUTE OF CHEMISTRY; CHEMGUIDE; PUBCHEM

The problem was compounded for many Asian countries in March when China, the world’s single-largest fertilizer producer, restricted exports of many products in order to protect its own agricultural sector. Fertilizer imports are down more than 50 per cent in Vietnam alone, according to customs data, threatening rice supplies for much of Southeast Asia.

Alex Holmes, regional director for Asia-Pacific at the Economist Intelligence Unit, said there “continues to be a noticeable contrast between global food commodity prices and prices of fertilizers such as urea.”

“The latter shows a vertical takeoff, but the former has only crept up,” he said, warning that potential disruptions to growing cycles may not have been fully priced in yet.

One exception can be seen in the Philippines, with new inflation data released this week showing a sharp spike in food prices − 6 per cent year-over-year.

The Southeast Asian country is heavily dependent on China for fertilizer and imports almost 75 per cent of its rice supplies from Vietnam and Thailand, both of which are also grappling with shortages.

Open this photo in gallery:

Manila's street vendors have had to increase their prices in recent months to deal with the higher costs of liquefied natural gas, and the downstream effects of fertilizer shortages in other Asian countries.Jam Sta Rosa/AFP via Getty Images

In March, the World Food Programme warned that an additional 9.1 million people “could be pushed into acute food insecurity” across Asia as a result of food and fuel shortages caused by the Iran war, an increase of 24 per cent.

Opening the Strait of Hormuz could still help avoid a major supply issue, said Maximo Torero, chief economist at the UN Food and Agriculture Organization, but “if we don’t reopen this in the next two to three weeks, the situation is going to get pretty serious.”

The situation could be even worse if a potential “super El Niño” emerges in the coming weeks. The natural climate phenomenon, which can last as long as a year, is characterized by a warming of ocean surface temperatures in parts of the Pacific and has been linked to crop failures, wildfires, droughts and floods.

With files from Reuters

Punit Paranjpe/AFP via Getty Images

Food for thought: More from The Globe and Mail

The Decibel podcast

Persian Gulf oil supplies many of the world’s farmers with nitrogen, but Saskatchewan potash provides another vital nutrient for crops. Agricultural and food policy reporter Kate Helmore spoke with The Decibel about Canada’s “pink gold” and an Australian company’s plan to develop it. Subscribe for more episodes.


Commentary

Eric Reguly: Global food crisis? Not just yet, but food inflation is coming as Strait of Hormuz stays closed

Rob Carrick: High food prices might be the most toxic form of personal-finance adversity in the past six years

Asim Biswas: How Canada can protect its food system in an increasingly uncertain world

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