Volatile Weather Delays Corn and Soybean Plantings in South America

Heavy rains are wreaking havoc on Argentina’s farmland, leaving nearly 4 million acres at risk and delaying corn and soybean plantings in one of the world’s top grain export regions.

BUENOS AIRES, ARGENTINA (RFD-TV) — A shift in South America’s weather could shake up the crop outlook and help increase the competitiveness of U.S. grains in global trade markets.

Earlier in the week, the weather in Argentina and southern Brazil was trending drier, threatening soil moisture for winter wheat, corn, and first-season soybeans. Meanwhile, central Brazil was expected to see increased rain, easing dryness, but delaying soybean planting.

As of Thursday, heavy rains are wreaking havoc on Argentina’s farmland, and leaving nearly four million acres at risk. Central Buenos Aires is one of the world’s top grain-exporting regions. However, farmers are currently unable to access their fields, delaying soybean and corn plantings. Argentine farmers worry some land may remain idle for months, blaming years of under-investment in drainage and roads for worsening the impact.

Brian Hoops with Midwest Market Solutions told RFD-TV News that orders and cancellations will be worth watching in the weeks ahead. Hoops also said to keep an eye on weather conditions in Brazil, currently China’s top soybean supplier.

“We’re looking at China, not really buying a lot of soybeans—pretty good weather in South America – and yet, the market continues just to march higher,” Hoops explained. “We are in a tactical uptrend here for soybeans in the entire soy complex. That is giving us some strength from algorithmic-type trading on dips in the marketplace, to see if we continue to push higher. So we’re seeing a lot of strength in that, soybeans.”

Meteorologists link the pattern to a peaking La Niña, with conditions possibly normalizing early next year. Farmers will be watching closely, as this volatility could impact corn and soybean production across the continent.

Related Stories
American soybean and corn leaders, along with Canada’s AgriFood sector, testified before the U.S. Trade Representative’s Office in support of the trade pact between the U.S., Mexico, and Canada.
China’s renewed purchases signal improving sorghum demand at a time when export markets are otherwise uneven. Meanwhile, agriculture groups across the U.S, Canada, and Mexico want to protect close trade relations.
Pressure on grain storage capacity and stronger export positioning are pushing more grain onto railroads, highways, and river systems as logistics become a key bottleneck this fall.
Tryston Beyrer, Crop Nutrition Lead at The Mosaic Company, examines planning trends as producers weigh corn and soybean plantings for 2026.
Despite the need for swift action, many ag lawmakers and industry groups argue that farm aid alone will likely not be sufficient to help farmers without improved trade relations with China.

Marion is a digital content manager for RFD News and FarmHER + RanchHER. She started working for Rural Media Group in May 2022, bringing a decade of digital experience in broadcast media and some cooking experience to the team.

LATEST STORIES BY THIS AUTHOR:

Brooks York with AgriSompo provide insight on crop insurance considerations and the decisions farmers are making as the enrollment deadline approaches.
USDA Under Secretary Richard Fordyce says the department stands ready to provide technical assistance with the Farm Bill if Congress requests it.
Farm legal expert Roger McEowen discusses a new rail antitrust case in Kansas and its potential implications for farmers as rail upgrades signal continued export-driven demand for logistics.
Surging energy markets are quickly becoming a cost story for U.S. agriculture as crude oil climbs on supply fears tied to the Middle East conflict.
New research shows that most farmers do not have a formal resiliency plan in place. Devin Fuhrman highlights how Nationwide’s Farm Risk Ready initiative supports farmers in building stronger, more resilient operations.
The American Coalition for Ethanol reacts as the Farm Bill heads to a full House vote — while ethanol expansion, including year-round E15, is left out — as well as the USDA’s pursuit of global markets for ethanol.