Right Source, Right Rate, Right Time, Right Place nutrient management. The UF/IFAS 4R app assists you in determine these critical components of nutrient management. Based on user inputs, the app calculates fertilizer rate and allows the user to save the results.

What’s New

Version 2.0

Support agronomic crops

App Privacy

The developer, IT UF-IFAS, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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