5 Tips for Managing Early-Season Plant Stress

Planting is just around the corner. Every decision you make, including your seed purchase and the ground conditions you place it in, can affect the number on the yield monitor at harvest. When seeds start in cold, wet soils, it can lead to early-season plant stress that can impact the rest of the season. While not all plant stresses can be eliminated, several management practices can help mitigate them.
 
Keep these five considerations in mind as you finalize your spring planting and management plans.

1.  Fine-Tune Seed Placement, Management Plans and Planting Equipment

High-yielding seed genetics and trait packages tend to require more intensive management to maximize their yield potential. You can help mitigate risk by balancing reliable, consistent performers and top-yielding genetics when making seed choices.
 
From there, work with your trusted advisor to review your seed’s response-to scores, which measure how a selected hybrid or variety will respond to variables like planting population, nitrogen use and fungicide applications. For example, some hybrids respond more favorably to higher planting populations, while others don’t respond as strongly to population. To avoid overpopulating or under populating, use response-to population (RTP) scores to develop variable rate planting prescriptions and get the optimal seeding population for every acre.
 
Always ensure your planter is set to the proper planting depth and make a habit of verifying performance at least once per field. Ensuring the right planting depth, evaluating the quality of your furrow and minimizing the impact of excessive crop residue can help achieve even emergence, optimal seed-to-soil contact and, ultimately, set seedlings up for success.

2.  Wait For Optimal Soil Conditions

It’s easy to feel anxious during the first warm days of spring. You may be tempted to plant early when the soil is close but not quite ready; however, planting in poor soil conditions is more likely to create problems for the rest of the season.
 
Iowa State University reports corn may take three weeks to emerge when soil temperatures average 50 to 55 degrees Fahrenheit at the time of planting, compared to 10- to 12-day emergence when soils average 60 degrees Fahrenheit. Plants that emerge quickly are less susceptible to early-season root and fungal diseases and insect damage, and they are more likely to have even stands across rows.
 
Equally important to soil temperature is soil moisture. Planting when the soil is too wet can cause compaction, smear the sidewall of the seed trench, restrict root development and even cause the seed to rot and die. And if the field is too dry, germination can slow or stop. In this case, try increasing planting depth to reach more moisture. In addition to the presence of moisture, be sure to evaluate its consistency. If moisture is not spatially consistent at seed depth, uneven germination and uneven emergence can occur.

3.  Consider Applying a Seed Treatment

Due to earlier planting dates, we continue to see an increase in disease pressure from Pythium, Rhizoctonia, Fusarium and Phytophthora, which can be detrimental to the plant’s health and yield potential. A quality seed treatment can help mitigate these early-season stresses.
 
Warden^® CX II seed treatment is formulated to help guard soybeans against fungal diseases and insects. In Answer Plot^® trials, Warden CX II seed treatment increased yields by an average of 2.0 bu/A across all planting dates and 4.0 bu/a in early planted soybeans.¹ When paired with Ascend^® ST3^™ plant growth regulator (PGR), a powerful PGR applied as a seed treatment, the combination increased yields by an additional 2.1 bu/A in early planted soybeans, compared to Wardex CX II seed treatment alone.² Below you can see a visual example of how Warden CX II and Ascend ST3 seed treatments work vs. untreated crops in soybean field trials.


Hopkinsville, KY Answer Plot trial, 4/30/2025

When it comes to corn seed treatments, Fortivent^® Plus seed treatment provides control of Pythium and insects, and aids in early-season plant growth and root development with the inclusion of zinc. Answer Plot trial data shows that seed treated with Fortivent Plus seed treatment yields 4.7 bu/A more than untreated seed.³ Luckily, if you’re planting a CROPLAN^® hybrid, your seed comes treated with Fortivent Plus seed treatment at no extra cost.

4.  Give Plants a Jumpstart to the Season 

Starter fertilizers applied at planting can help stimulate root development and increase nutrient availability to small plants. Zinc and phosphorus, which tend to be more limited when soils are wet and cool, are in many starter fertilizers and are vital to early plant growth.

 
In addition to starter fertilizer, adding chelated zinc and a PGR like Ascend^2® PGR can help accelerate corn germination and emergence, boost seedling and root development and maximize yield potential in early-season conditions. This becomes especially important when planting in cool, wet soils.
 
When combined with a starter fertilizer, Ascend² PGR offers a simple, convenient way to enhance early-season corn growth and stress tolerance. Based on multiple years of Answer Plot trials, corn that received Ascend² PGR in-furrow along with starter fertilizer had a 3.0 bu/A yield advantage compared to crops that only received a starter fertilizer.

5.  Remember to Scout Your Fields

Once plants have emerged, be sure to scout fields early and often. Taking population counts can help determine if there were germination issues that may require extra attention. Observe plant spacing and growth stage differences between plants to evaluate whether a replant may be necessary. 
 
The first steps you take this spring will affect crop growth and development throughout the season. Talk with your local retailer about how you can give your crop a strong start.

All photos are either the property of WinField United or used with permission.
 
 
⁴Based on over 60 trials across Answer Plot locations in 15 states from 2017 to 2021.
³2018 Answer Plot data. Based on 41 locations.
²13 Answer Plot locations. Early planting date: corn planting timeframe.
¹14 Answer Plot locations. Early planting date: corn planting timeframe. Later planting date: about two weeks later, depending on weather.

© 2026 WinField United. Important: Before use always read and follow label instructions. Crop performance is dependent on several factors many of which are beyond the control of WinField United, including without limitation, soil type, pest pressures, agronomic practices and weather conditions. Growers are encouraged to consider data from multiple locations, over multiple years and to be mindful of how such agronomic conditions could impact results. Answer Plot, Ascend, Ascend², CROPLAN, Fortivent, ST3, Warden and WinField are trademarks of WinField United. All other trademarks are the property of their respective owners.