Row Crops Today — May 18, 2026
The 5-minute 5 AM brief for row crop producers and ag professionals
Headline Stack
🌍 White House says China will buy at least $17B in US ag annually through 2028
🫘 Analysts: 25M tonnes of soybeans already accounted for $12.6B of China's 2024 buys
🌧️ AccuWeather flags high-risk severe weather from southern Kansas to central Iowa Monday
🔬 Tar spot confirmed in Nebraska corn, but Purdue research sets 5–7% spray threshold
🌽 Only 53% of South Dakota corn is planted and 8% emerged in mid-May
Top Story
🌍 The White House announced China will purchase at least $17 billion in US ag goods annually through 2028. — LINK
The White House said Sunday that China has committed to buying at least $17 billion in US agricultural products each year through 2028, with soybeans, corn, pork, and dairy named among the covered commodities. The announcement is the first multi-year structured purchase commitment from Beijing since the 2020 Phase One trade deal and follows weeks of negotiations led by US Trade Representative Jamieson Greer and Treasury Secretary Scott Bessent. The commitment establishes a floor for Chinese demand for the two largest US row crops over the next three marketing years, though the agreement does not specify quarterly purchase schedules or enforcement mechanisms. US officials framed the deal as a baseline that could be exceeded depending on Chinese domestic crush demand and harvest conditions in South America. China was the destination for roughly half of all US soybean exports in the 2024/25 marketing year, and corn shipments to China had fallen to near zero before the latest round of talks.
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🫘 Analysts say much of the $17B headline reflects trade China was already doing. — LINK
USDA data show China imported 27 million tonnes of US soybeans worth roughly $12.6 billion in 2024 — meaning the new 25-million-tonne annual soybean commitment largely codifies existing trade flows rather than adding net-new demand on top of the $17 billion headline.
Analysts told the South China Morning Post the deal's real significance depends on whether Chinese buyers source incremental volumes above their existing baseline or simply redirect purchases already destined for the US.
China's total soybean imports from all origins ran about 105 million tonnes in 2024, with Brazil supplying the majority; US share has been pressured by Brazilian harvest expansion and currency dynamics over the past three seasons.
🌧️ AccuWeather designates a high-risk severe weather corridor from southern Kansas to central Iowa. — LINK
AccuWeather has placed a high-risk severe weather designation across a corridor running from southern Kansas through central Iowa into Monday, with forecasters calling for violent tornadoes, golf-ball-sized hail, and flash flooding across the southern Plains and central Corn Belt.
The setup arrives during a critical corn and soybean planting window for producers in Kansas, Missouri, Nebraska, and Iowa, with hail and flooding the primary threats to recently planted fields and emerging stands.
The high-risk designation is AccuWeather's top severe-weather tier and is used only a handful of times each year for outbreaks expected to produce widespread, significant damage.
🔬 Tar spot confirmed in Nebraska corn, but Purdue research says hold off on fungicide. — LINK
Tar spot of corn has been identified in several Nebraska counties, but research from Purdue University and other land-grant programs sets a 5–7% disease severity threshold at the tassel-to-dough growth stage before fungicide applications become cost-effective.
"Tar spot of corn has been identified in several Nebraska counties. However, we are not recommending fungicide applications at this time based on research from Purdue University and other states," wrote Jennifer Brhel for the Flatwater Free Press.
Premature spraying raises both input cost and fungicide-resistance risk; tar spot was first confirmed in the US Corn Belt in 2015 and has since spread across most major corn-producing states.
🌽 Only 53% of South Dakota corn is in the ground and 8% has emerged. — LINK
As of mid-May, just 53% of South Dakota corn is planted and only 8% has emerged, with SDSU Extension reporting soil temperatures still below the 50°F threshold generally needed for reliable corn germination.
SDSU Extension agronomist Anthony Bly attributed the slow progress to cool, dry conditions that have left soil temperatures lagging the multi-year average across much of the state.
The pace runs behind the recent five-year average for South Dakota; cool, dry seedbeds delay emergence and can compress the window between planting and pollination, raising the risk of yield drag if summer heat arrives on schedule.
Only 8% of South Dakota corn had emerged by mid-May 2026, even as planters reached just 53% of intended acres — a wide gap between seeds in the ground and stands on their feet under abnormally cool, dry conditions.
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