The N-Tester Recommendation algorithm is calibrated for specific crop varieties. Only calibrated varieties appear in the Variety dropdown when preparing an N-Tester measurement in the Atfarm mobile app.

This article lists the varieties currently supported by the N-Tester in Ireland. Available calibrations differ between countries because growing seasons, climate conditions and crop management vary across regions.

Open a crop section below to see which varieties are calibrated for N-Tester in Ireland.

Tip: Use your browser search to quickly find a variety in the list. Press Ctrl + F (Windows) or Cmd + F (Mac), then type the variety name.

Your variety isn't listed?

If your variety isn't listed, select Unknown in the variety dropdown in the app. You can still use the N-Tester, but the recommendation may be less accurate because the variety isn't calibrated yet. Please send us the variety name and we'll review it for future calibration updates.