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A Smarter Way to Size Up Your Soybean Fields in Missouri

By Ryan Milhollin - MU Extension

A Smarter Way to Size Up Your Soybean Fields in Missouri

Good soybean decisions start with knowing your ground. Soil types, drainage, flood risk, nearby streams and wetlands, and weather patterns all influence yields, input costs, and long-term farm planning.

The challenge is that this information often lives across multiple government websites, each with its own login, interface, and learning curve.

That’s where the Agricultural Site Assessment Tool, or AgSite, comes in.

What Is AgSite?

AgSite (agsite.missouri.edu) is a free online tool developed by the University of Missouri that compiles key land information into a single, easy-to-read report.

Users outline a field on an aerial map, click “View Report,” and AgSite generates a site-specific report for that parcel. The tool works for any field in Missouri and across the United States, with no special software or technical expertise required.

What Information Does AgSite Provide?

AgSite combines data from multiple federal and institutional databases into one streamlined format. For soybean farmers, some of the most useful insights include:

Soils and productivity
A breakdown of soil types within the field, acreage by soil classification, and Crop Productivity Index ratings. This data helps explain yield variability and supports comparisons when renting or purchasing land.

Water features and drainage
Identifies streams, wetlands, and watersheds that may affect planting, chemical applications, or conservation compliance. Principal aquifers are also mapped to help assess irrigation potential.

Floodplain risk
Shows whether land falls within 100-year or 500-year floodplains, helping farmers plan improvements, manage risk, and work with lenders.

Climate summaries
Provides long-term monthly averages for precipitation, temperature, and wind from nearby weather stations, along with major storm event estimates used in planning and engineering.

Each section includes interactive maps showing exactly where features occur within the field. Educational resources are also embedded for users who want to explore underlying data sources in more detail.

Why It Matters for Missouri Soybean Farmers

AgSite helps farmers move from instinct to informed decision-making. Missouri soybean producers may use the tool to:

  • Evaluate land rent or purchase opportunities
  • Understand soil-driven yield variability
  • Identify wet areas, flood risks, or sensitive ground
  • Support conversations with lenders, landlords, and consultants
  • Improve recordkeeping and long-term farm planning

Instead of searching multiple databases, farmers can view a comprehensive field profile in one place.

Easy Access at No Cost

AgSite is available at agsite.missouri.edu and does not require an account. Users can generate unlimited reports, print or save findings, and explore layered maps at no cost.

Bottom Line

AgSite doesn’t replace boots-on-the-ground experience. It strengthens it.

For Missouri soybean farmers managing tight margins and complex land decisions, the tool offers a practical way to save time, reduce risk, and better understand what lies beneath the surface and beyond the field edge.

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