Crops
Corn, soybeans, forages, and small grains are the main crops grown and produced in Iowa. Learn more about the agronomics of growing and storing these crops in Iowa.



Timely Insights on Crop Production
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March 6, 2025Content Author
Optimum nitrogen fertilizer rates for corn can vary by more than 100% from field-to-field and year-to-year. This variability is a product of near limitless interactions among crop genetics, management, and environment factors (weather & soil type). Among them, the amount of soil inorganic nitrogen in the soil is one of the most important (Baum et al., 2024).
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March 5, 2025Content Author
As we look ahead to spring, many wonder what conditions to anticipate and how this spring may compare to last. This article provides a brief climate outlook and information about current soil moisture conditions across the state.
Climate outlook
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March 4, 2025Authors
As temperatures begin to increase following winter, we are entering a period of warm days and cold nights. These conditions result in our soils going through freeze thaw cycles, which make for a perfect time for frost seeding. Frost seeding involves strategically broadcasting or overseeding legumes into pastures, hayfields, or small grains. It is a potentially cost-effective solution to revitalize a diminishing stand or introduce new legumes. However, success hinges upon assessment of the existing stand, proper timing and soil conditions.
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February 25, 2025Content Author
The Iowa State University Extension and Outreach Integrated Crop Management website has recently undergone a redesign for a new “look and feel.” While the site’s URL remains the same (https://crops.extension.iastate.edu), the redesign enhances navigation, improves access to key resources, and ensures safety and compliance with university requirements.
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January 22, 2025Content Author
To maintain your private pesticide applicator certification, you must either pass an exam every three years or attend an approved Private Continuing Instruction Course (P-CIC) between December 1 and April 15 each year your certification card covers.