Geopolitical Tensions Drive Up Global Fertilizer Costs, Impacting Agriculture
Newswise — One of the pressing concerns stemming from the ongoing geopolitical developments and regional instability in the Middle East is its profound impact on global agriculture and crop production.
According to the International Food Policy Research Institute, a significant portion, approximately 30 percent, of global fertilizer trade traversed the vital Strait of Hormuz in 2024. The persistent regional instability and geopolitical challenges have inevitably led to escalating costs and heightened anxieties for food producers worldwide, including those in the United States.
Rory Maguire, a distinguished expert in nutrient management and sustainable agriculture at Virginia Tech, meticulously detailed how these regional developments are affecting global fertilizer markets, the subsequent impact on agricultural practices in the US, and potential alternatives available to growers.
Understanding the Fertilizer-Conflict Connection
When discussing fertilizer in the context of Middle Eastern geopolitical shifts, what are the specific concerns?
“Fertilizer primarily comprises three essential nutrients: nitrogen, phosphorus, and potassium. While the US sources much of its potassium from Canada and phosphorus from North America (including North Carolina, Florida) and Morocco, the nutrient most acutely affected by the geopolitical dynamics in the Middle East is nitrogen. Nitrogen fertilizer production relies heavily on natural gas, a resource abundant in the Middle East, which also hosts numerous facilities for its conversion into fertilizer. It is estimated that nearly 30 percent of the world’s nitrogen fertilizers originate from the Gulf region.”
Why Fertilizer is Crucial for Crop Growth
Why is fertilizer critical for the growth of crops?
“Just as humans require adequate nutrition, plants too demand proper nourishment. Without sufficient nutrients, plants become malnourished, much like us. Our soils often lack the necessary nutrients for maximum growth. Consider a forest; it grows slowly. In contrast, our agronomic crops, cultivated for food, grow very rapidly. Therefore, if they don’t have access to available nutrients, they simply won’t be able to grow optimally and achieve desired yields.”
The Indispensable Role of Nitrogen
How critical is nitrogen to most fertilizers and most farmers?
“A deficiency in nitrogen will invariably hinder your crop’s growth, leading to decreased yields. Nitrogen is also unique because it is not well retained in our soils. Soils strongly hold phosphorus and potassium, meaning your land might retain enough of these from previous applications. However, nitrogen is highly ephemeral; it moves. Rain can cause it to leach away, and it can even revert to its gaseous form, dissipating into the atmosphere. Thus, any excess nitrogen applied in the past will largely be gone by the current year.”
Seasonal Impact on Fertilizer Concerns
How much does the time of year factor into current concerns?
“This period marks the peak of the planting season across the US, though timing varies by region. Some farmers may have begun planting, but the season is truly gaining momentum now. Nitrogen’s ephemeral nature makes its application very time-sensitive. Growers typically apply a small amount at planting and then, for demanding crops like corn, a second ‘side-dress’ application when the plants are about one to two feet tall, usually within the next month. It is this second application where farmers might be more sensitive to price fluctuations, especially if they haven’t locked in their nitrogen costs.”
Exploring Nitrogen Alternatives
What nitrogen alternatives are there to commercial fertilizers?
“Manure serves as an excellent source of nutrients. The primary challenge, however, is its limited availability relative to the vast expanse of cropland. Even if all available manure were evenly distributed, it would not provide nearly enough nutrients. Certain concentrated agricultural areas, such as the Shenandoah Valley of Virginia and the Eastern Shore, might have sufficient poultry litter due to high poultry populations. Yet, for other regions, the distance from these sources makes transportation costly. So, while it’s a superb nutrient source if accessible, there simply isn’t enough to meet widespread demand.
Furthermore, not all crops require supplemental nitrogen. Legumes, for instance, possess the remarkable ability to fix nitrogen directly from the atmosphere. Soybeans, the most widely cultivated legume in the U.S., do not necessitate nitrogen fertilizer. Farmers could pivot from corn to soybeans, but widespread adoption of such a shift would inevitably drive down soybean prices. This highlights the constant balancing act farmers must perform.”
Farmers’ Current Outlook
How big a concern is the current situation to the farmers you work with?
“In recent discussions with farmers, they indicated that the situation is more manageable than during the initial year of the Ukraine conflict, which caused another significant supply shock when Europe ceased importing gas from Russia. This time, while they are observing increased prices, they are not experiencing a lack of availability. Therefore, although prices are certainly higher, farmers should still be able to procure fertilizer; it will simply come at a greater cost this year.”
For more insights into this topic and practical advice applicable to both large-scale farms and small gardens, listen to Virginia Tech’s “Curious Conversations” with Rory Maguire.
About Rory Maguire
Rory Maguire is a distinguished professor and extension specialist in the School of Plant and Environmental Sciences at Virginia Tech. He also oversees the Soil Testing Laboratory at Virginia Tech and provides training for nutrient management planners who develop strategies for regulated farms.
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