diff --git a/Models/PMF/Organs/SorghumLeaf.cs b/Models/PMF/Organs/SorghumLeaf.cs
index 1e8f72dfe9..339dfa2293 100644
--- a/Models/PMF/Organs/SorghumLeaf.cs
+++ b/Models/PMF/Organs/SorghumLeaf.cs
@@ -890,9 +890,6 @@ private void ApplySenescence()
 
             if (!MathUtilities.IsPositive(dltSenescedBiomass)) return;
 
-            double slnToday = MathUtilities.Divide(Live.N, laiToday, 0.0);
-            DltSenescedN += DltSenescedLai * Math.Max(slnToday, 0.0);
-
             if (MathUtilities.IsGreaterThan(DltSenescedN, Live.N))
                 throw new Exception($"Attempted to senesce more N than exists on leaf '{Name}'");