What Are the Major Crops Grown in Kansas?

Kansas grows four crops that tower above everything else in acreage and economic value: winter wheat, corn, grain sorghum, and soybeans. Winter wheat built the state’s agricultural identity, but corn has surged in importance thanks to irrigation and ethanol demand, while grain sorghum fills the dryland acres where corn cannot reliably survive. Which of these crops dominates in any given county depends heavily on a dramatic east-to-west rainfall gradient and on access to groundwater.

Winter Wheat

Kansas has led the nation in winter wheat production for most of the past century. The crop thrives in the state’s continental climate: cold winters provide the chilling period wheat requires, and the relatively dry spring allows harvest before the worst of the summer heat. Wheat goes into the ground in the fall, sits dormant through winter, and comes off the field in June or July, giving farmers a head start on the growing season compared to spring-planted crops.

Wheat’s presence in Kansas is part of a much larger historical pattern. Over the 19th and 20th centuries, North American farmers steadily pushed wheat production into environments once considered too arid and too variable to cultivate. By the early 2000s, the median annual precipitation where wheat was grown across the continent had dropped to roughly half of what it was in the 1830s.¹ Kansas sits right in that drier, more variable zone, and its farmers have adapted through improved varieties, better moisture-conserving tillage, and crop rotations designed to let the soil recharge between plantings.

Most Kansas wheat is hard red winter wheat, a high-protein class prized for bread flour. The state’s wheat moves through a dense infrastructure of grain elevators, rail terminals, and export channels. Kansas City remains one of the nation’s key grain trading hubs, and a significant share of Kansas wheat heads overseas.

Corn and the Expansion of Irrigation

Corn is now one of Kansas’s highest-value crops, though its dominance is more recent than wheat’s. In the eastern third of the state, where annual rainfall can push past 35 inches, corn grows well without supplemental water. But much of the corn acreage in central and western Kansas depends on irrigation from the High Plains Aquifer, commonly called the Ogallala. That groundwater has turned semi-arid prairie into some of the most productive farmland in the country, but it comes with a catch: the aquifer is not recharging anywhere near as fast as it is being pumped. About 30% of the groundwater in the Kansas portion has already been depleted, and projections suggest another 39% could follow over the next 50 years if current trends hold.² Despite that trajectory, irrigated corn production could still increase through around 2040, because farmers keep squeezing more crop per gallon of water through improved irrigation technology and better hybrids.

The growth of ethanol production in Kansas reshaped where and how much corn farmers plant. Between 2007 and 2009, farmers both planted more corn on existing cropland and converted some non-cropland to corn, and both of those patterns were significantly tied to proximity to ethanol plants.³ When an ethanol facility opened nearby, local corn acreage went up. Kansas now has several ethanol plants scattered across the central and western parts of the state, and they provide a reliable local market that competes with traditional grain buyers for the crop.

Corn yields also track the state’s rainfall gradient in a predictable way. Research on the Great Plains shows that counties toward the east hold a built-in productivity advantage over those in the west simply because they receive more precipitation.⁴ That spatial dependency makes dryland corn in far-western Kansas a genuinely risky bet, which is why sorghum has held its ground out there.

Grain Sorghum

Grain sorghum is the crop that fills the gap where corn falters. It uses less water, tolerates heat better, and can produce a respectable yield in the semi-arid conditions of western and south-central Kansas. The state is typically the nation’s top sorghum producer.

The yield comparison between sorghum and corn shifts depending on how much rain falls. Across all counties in the Great Plains, corn holds a mean yield advantage, but in semi-arid environments that advantage shrinks dramatically. The proportion of counties where sorghum actually outyields corn jumps from about 14% overall to 41% in semi-arid settings.⁵ In the driest years in western Kansas, sorghum has outyielded corn by enormous margins. One set of trials found sorghum produced more than double the corn yield in the driest growing season when conventional tillage was used. But in three out of five years with decent rainfall, no-till corn substantially outyielded no-till sorghum.⁶

This back-and-forth is exactly why many western Kansas farmers plant both crops. If the rains come, the corn pays well. If they don’t, the sorghum keeps the operation alive. Sorghum also serves as a feedstock for ethanol, animal feed, and some food products, so it has reliable markets even if they are not as deep as corn’s.

Sorghum is typically planted later in the spring than corn and harvested in the fall. It is often rotated with winter wheat in a wheat-sorghum-fallow system that gives the soil time to recharge moisture between crops. This rotation has been a staple of dryland farming in western Kansas for decades, and it reflects a practical reality: in country where 16 inches of annual rainfall is normal, you need to bank water in the soil profile if you want a crop to succeed.

Soybeans in Eastern Kansas

Soybeans are the fourth pillar of Kansas agriculture and thrive in the eastern third of the state, where rainfall is more generous. Kansas ranks among the top soybean-producing states, and acreage has grown steadily as global demand for soy protein and soybean oil has climbed. Soybeans fix their own nitrogen through a partnership with soil bacteria, which makes them a valuable rotation partner for corn. A corn-soybean rotation cuts fertilizer costs and breaks pest and disease cycles that build up under continuous corn.

Most Kansas soybeans are planted in May or June. In south-central and southeastern Kansas, double-cropping is common: soybeans get drilled into wheat stubble right after the June wheat harvest, squeezing two harvests out of one field in a single year. The trade-off is a shorter growing window for the beans, which tends to reduce yields compared to full-season plantings. Still, the combined revenue from wheat plus soybeans on one field often beats what either crop alone would return.

The soybean market in Kansas is supported by several crushing plants that process the beans into meal and oil. Soybean meal is a key ingredient in livestock feed, and the state’s large cattle industry provides a built-in local customer base. Soybean oil increasingly goes into biodiesel and renewable diesel, echoing the way ethanol demand reshaped corn markets a generation earlier.

The East-West Rainfall Divide

Kansas stretches about 400 miles from its eastern border to its western edge, and annual precipitation drops roughly in half across that distance. The eastern border can see 40 or more inches of rain per year, while far-western counties get 15 to 18 inches. This gradient is the single biggest factor determining what gets planted where, and it creates something close to two different agricultural states sharing one set of boundaries.

In the east, the landscape looks a lot like the rest of the Corn Belt: corn and soybeans in rotation, with some wheat mixed in. Move into central Kansas, and irrigation starts supplementing rainfall for corn. Continue west, and dryland wheat and grain sorghum take over almost entirely, except on irrigated circles fed by center-pivot systems pulling from the Ogallala. The transition is not sharp; it is a gradient, and you can watch it happen from a car window driving along Interstate 70.

Farmers in the west compensate for the drier conditions through reduced tillage to conserve moisture, crop-fallow rotations that let fields rest and accumulate soil water every other year, and a willingness to grow whatever the climate allows rather than whatever the market pays the most for. A western Kansas farmer who insists on planting corn every year without irrigation is asking for trouble. An eastern Kansas farmer who plants grain sorghum instead of corn is probably leaving money on the table. Matching the crop to the water supply is the core management challenge across the state.

Sunflowers and Other Specialty Crops

Beyond the big four, Kansas grows several other crops that fill specific niches. Sunflowers are the most visible, especially in the northwest part of the state. Kansas typically ranks among the top sunflower-producing states, growing both oilseed varieties crushed for cooking oil and confection types sold as snack seeds. Research in western Kansas has shown that adjusting planting dates can help manage pest pressure: later planting reduced stem weevil infestations by roughly 10% to 50%, depending on the year and the sunflower type.⁷ That kind of variability is typical of specialty crop management in a region where pest ecology shifts year to year with the weather.

Alfalfa is another important crop, particularly where irrigation is available. Kansas ranks high nationally for alfalfa hay production, and much of it feeds the state’s dairy and beef cattle. Cotton has also crept into the southwestern corner of the state in recent years as growing seasons have lengthened and heat-tolerant varieties have improved. It remains a small crop by Kansas standards, but its presence would have seemed unlikely a generation ago. Canola and dry edible beans also appear on a trial or small-acreage basis. None of these approach the economic weight of wheat, corn, sorghum, or soybeans, but they offer diversification for farmers looking to spread risk.

How Aquifer Depletion Could Reshape the Crop Map

The future of Kansas agriculture depends in large part on what happens underground. The High Plains Aquifer has been the engine of irrigated crop production in western and central Kansas since the mid-20th century. Significant declines in pumping capacity are expected within the next 15 to 20 years in many areas.² As wells weaken or go dry, the irrigated corn circles that dot western Kansas will shrink, and the land beneath them will revert to dryland production.

Some of that transition is already underway. Farmers in areas where well output has dropped are switching from irrigated corn to dryland sorghum-wheat rotations or investing in more efficient irrigation technology like subsurface drip to stretch the remaining water. The state has also created Local Enhanced Management Areas, where farmers voluntarily agree to reduce pumping in exchange for more flexible regulatory treatment. These programs are essentially an experiment in managed retreat from full irrigation.

What the crop map of Kansas looks like at mid-century will hinge on the pace of aquifer decline, how much crop genetics can improve water-use efficiency, and whether new markets develop for drought-adapted crops. Sorghum could see a resurgence. Wheat, which demands less water than corn and gets harvested before peak summer evaporation, remains a dependable anchor. And in eastern Kansas, where rain-fed agriculture faces fewer water constraints, corn and soybeans will likely continue to dominate regardless of what happens underground out west.

Cattle and the Crop Connection

Kansas is one of the top cattle-feeding states in the country, and this shapes the crop landscape in ways that are easy to overlook. A huge share of the corn, sorghum, and alfalfa grown in Kansas never leaves the state. It goes straight into feed bunks at the large feedlots concentrated in the southwestern quadrant. Silage corn, harvested as the whole plant rather than just the grain, is a major feedlot input. Distillers’ grains, a byproduct of ethanol production, also flow into cattle rations, creating a circular economy among corn fields, ethanol plants, and feedyards.

This integration means that shifts in the livestock industry ripple back into cropping decisions. When cattle prices are strong, demand for feed grains and hay rises, encouraging farmers to plant more corn and sorghum. When drought hits and pastures dry up, ranchers sell cattle early, feedlot inventories fluctuate, and demand for locally grown feed can shift abruptly. You cannot fully understand Kansas crop agriculture without recognizing that a good chunk of it exists to feed the animals standing in pens a few counties over. The crops and the cattle operate as a single economic system, and the health of one depends on the other.