(last updated 5/9/19)

Custom Rate Guides.2017 (PDF, 8 pages, 253 KB) (Newest Edition we have)

Soybean Yield Limiting Factors in Wisconsin (PDF, 22 pages, 1.26 MB)

More resources available in article

UW-Extension Crop Budgets


Corn Yield Response to Pop-up Starter Fertilizer

WOFT_Pop-up Starter Fertilizer Challenge


WI Corn Hybrid Performance Trials




WI Soybean Variety





Cool Bean Advisor –


2016 UW Corn Performance Tests


2017 UW Soybean Performance Tests


2017 UW Oats and Barley Performance Tests


2016 UW Forage Performance Tests


2018 Pest Management for Field Crops Manual


Corn Leaf Disease Identification


Common Corn Diseases in Wisconsin – Visual Quick Guide


Wheat Disease Identification


Soybean disease ID


UW Soil Testing Lab – Marshfield



On Farm Testing
“Farmers today have an increasing number of tools for managing crops. New developments in precision farming technologies, biotechnology, and advancements in pesticides, equipment, and other ag inputs are converging and arriving at the farm-gate at an unprecedented rate. Sifting through the overwhelming milieu of technologies to find the tools that really work is a challenge for farmers and the consultants and agronomists that serve and support production agriculture. …”  (for full article, click on the below link)

WI On-Farm Testing Forms (PDF, 2 pages, 41 KB)

Columbia County Extension
Administration Building
112 East Edgewater Street, Room 212
Portage, WI 53901
Phone: 608-742-9680
Fax: 608-742-9862
Office e-mail:
TTY/TDD: 711 for Relay