iPad Screenshots


Growers and consultants have relied on the Purdue Extension Corn & Soybean Field Guide for more than 20 years. Purdue University specialists created this comprehensive, science-based app to help you in the field or classroom. It provides a range of tools and information to help you effectively manage corn and soybean production.

The Corn Management and Soybean Management sections provide information about planting, growth and development, nutrient recommendations, and nutrient deficiencies. They also provide scouting information and management recommendations for insects, diseases, nematodes, and vertebrate pests.

The Weeds section helps users identify broadleaf, grass, and sedge weeds, provides a tool for identifying herbicide injury, and describes herbicide modes of action. Built-in calculators help you estimate yields, and give you a tool to help decide when you need to replant.

This app includes hundreds of useful, high-quality images to help you diagnose problems and understand common issues in corn and soybean production. Short videos also illustrate important concepts. There also is a tool for submitting samples to the Purdue Plant and Pest Diagnostic Laboratory.

What’s New

Version 1.3.1

This update makes the app compatible with later versions of iOS and updates information throughout the app.

Ratings and Reviews

4.6 out of 5
28 Ratings

28 Ratings

Sweeten mommy ,

Good resource

Boots my scouting app. I especially like the calculators.

mellgrs ,

Currently doesn’t work because it isn’t compatible with the latest iOS.

Currently doesn’t work because it isn’t compatible with the latest iOS.

MDavid86 ,

Great app with a glitch

Great field guide app! Easy to use and the interaction is easy. There is a bug however under the 'Corn' tab, the buttons for 'growth stages' and 'nematodes' causes the app to crash.


Purdue University
434.3 MB

Requires iOS 8.0 or later. Compatible with iPad.



Age Rating


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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