by John Barker, OSU Extension – Knox County
Ohio Nutrient Management Record Keeper (OnMRK) is a computerized recordkeeping system
that sync’s with your smartphone or tablet to create a simple, easy and quick way to record all
of your fertilizer and manure applications from the field. The free app which works on tablets,
iPads and smartphones can be downloaded from the Google Play store for Android devices and
iTunes for the Apple products.
To get started, simply go to the app’s website www.onmrk.com. After setting up your account, enter your farm and field information. Download and open the app on you smartphone or
tablet and enter your applicator key. All of the data that has been entered on your computer
will now synchronize with your smartphone or tablet. The app features drop‐down menus and
quick entry fields which make it fast and easy to enter the required information.
Click here for Ohio Nutrient Management Record Keeper Instructions
The application information you enter from the field is combined with the GPS Location data
from your smartphone or tablet. Both the current weather data and the weather forecast for
this location is recorded. Once the application is saved the data is synced with the website.
From the website you can print your application records or export them to a spreadsheet.
The app was developed with input from OSU Extension Knox County, Ohio Farm Bureau and
Knox County Soil and Water Conservation District to meet the new state record keeping
requirements for both Senate Bill 1 (SB 1) and Senate Bill 150 (SB 150).
A detailed set of instructions can be downloaded from the OSU Extension – Knox County
website at www.knox.osu.edu.