Skip to Main Content

Fertilizer Recommendations Tool

The Tri-State Fertilizer recommendations are a collaborative effort among agronomists and like-minded experts from Indiana, Ohio, and Michigan. This spreadsheet implementation using Indiana-centric equations does the math for you. If you are new to this style of Excel spreadsheet, there is a brief tutorial video explaining how to use the tool.

This Excel workbook also includes a side-by-side comparison tool to help you evaluate cost differences of different combinations of fertilizer to deliver nitrogen, potassium, phosphorus, and sulfur. Be sure to update the prices table to make sure your analysis is appropriate.

fertilizer-recommendations-spreadsheet-example.jpg

The latest version of the Tri-State recommendations are here in a 56 page document: Tri-State Fertilizer Recommendations

For more background on the recommendations in this spreadsheet linked above, see:

Digital Agriculture Posts

Tomi Lori Ankita looking at tomato
Purdue-led TOMI project receives $3.5M grant to turn a decade of data into new tools and strategies for tomato farmers

Indiana ranks third in the nation for tomato production. Lori Hoagland, a professor in Purdue...

Read More
Purdue research team uses a computer on top of a drone to gather data
Purdue researchers acquire and analyze data through AI network that predicts maize yield

Artificial intelligence (AI) is the buzz phrase of 2024. Though far from that cultural spotlight,...

Read More
Siddhartho Paul and his students use a RTK GPS in a soybean field to get precise location information
Satellites and soils: NIFA and AgSEED grants fund remote sensing data collection and machine-learning models to predict soil properties at farm-to-landscape scales

The few inches of soil you pick up on the tip of your shovel are part of a much bigger picture....

Read More
uav data on a monitor
Data-Driven Seminar Series

Purdue College of Agriculture presents a seminar series featuring experts in data science,...

Read More
two students lean over a counter as the tinker on a remote controlled car together
Digital Ag Club’s Scarecrow-bot making its debut at Boiler Gold Rush

Thumping hind legs. Two pointed ears. White, fluffy cottontails. The markers of an enemy to...

Read More
Songlin Fei, director of Purdue’s Institute for Digital Forestry and professor in the Department of Forestry and Natural Resources, standing among the trees in Martell Forest.
The Society of American Foresters honors Purdue professor with Award in Forest Science

The Society of American Foresters (SAF) annually recognizes individuals for their outstanding...

Read More
To Top