Too Much Rain

Heavy and frequent rains in central Illinois and southern Indiana have led to widespread ponding and waterlogged soils. That spells trouble for young corn and soybean plants trying to get established. When soils are saturated, oxygen levels drop fast. Roots struggle to breathe, and nutrient uptake stalls.

On top of that, saturated ground invites compaction. Equipment passes become risky, and surface crusting can hinder emergence. Fields with poor drainage are showing yellowing and patchy stands—early signs that crops are already stressed.

Growers should be keeping a close eye on nitrogen loss. In these conditions, nutrients like nitrate can leach below the root zone or get lost to denitrification. Tissue sampling and side-dressing, where possible, might be needed to correct deficiencies before the V6 growth stage in corn.

Early Heat

June brought an unusual stretch of early heat across the region, especially in western Kentucky and parts of Indiana. While warm weather typically helps crops push ahead, extreme early heat can tip into stress territory, especially when soil moisture can’t keep up.

Stress on Young Crops

Corn in the V2 to V6 stages and soybeans just beginning to branch out are both vulnerable to high temperatures during rapid vegetative growth. Early heat boosts evapotranspiration, drying out topsoil and forcing roots to dig deep for moisture. That’s tough when early wet conditions have kept roots shallow.

In corn, heat during early growth stages can disrupt uniformity in plant development. In soybeans, it may lead to uneven canopy closure, which impacts weed suppression and light interception. Both crops become more susceptible to secondary stresses when already heat-weakened.

Growers should monitor plant height, leaf color, and root health during these stretches. Irrigation, where available, and conservation tillage practices can help manage moisture retention.

High Disease Pressure

Warm, wet conditions are ideal for pathogens. And this year, we’re seeing plenty of both. From central Illinois to northern Kentucky, the weather has set the stage for an early rise in disease pressure.

What to Watch For

Gray leaf spot and northern corn leaf blight are already being spotted in lower canopy corn leaves. In soybeans, sudden death syndrome (SDS) and phytophthora root rot are more likely to show up in fields that had standing water or poor drainage in May.

The risk isn’t just in visible infections. These conditions allow fungal spores to multiply quickly, especially if dense canopies trap humidity. Scouting is key. Walk fields during warm, humid mornings and check the lower leaves for spots, lesions, or wilting.

Preventative steps like crop rotation and resistant hybrids help, but some fields may need additional support this season. Timing applications to the right stage and choosing the correct fungicide can make a major difference.

Fertility Challenges

Nutrient management is never one-size-fits-all, but this season is especially tricky. Weather swings are throwing off plans made back in March. Between rain delays and early heat, it’s been tough to stick to a schedule.

Adjusting Mid-Season

Nitrogen that was applied pre-plant may already be gone in many fields due to leaching or denitrification. Sidedress windows have been tight, and even when conditions allow for an application, the crop’s needs may have already shifted.

Now is a good time to pull tissue tests and re-evaluate. Are your corn plants showing pale midribs? Are soybeans lagging in leaf color or size? The signs are there if you’re looking.

Variable rate application technology can help get nutrients where they’re needed most, especially when timing is tight. Don’t guess—measure and adapt.

 

Take the Next Step in Crop Health

If this season has your head spinning, you’re not alone. Weather this wild demands flexibility, good data, and the right tools. That’s where we come in.

At Innovative Input Solutions, we offer custom crop health checks, fertility reviews, and support for in-season management. Whether you’re scouting for disease, tracking tissue test results, or timing that fungicide pass, we’re here to help.

Contact us at 270-350-3799 or info@innovativeinputs.com. Let’s figure out the next step for better crop health—together.