diff --git a/src/main/java/no/bioforsk/vips/model/roughagenutritionmodel/RoughageNutritionModel.java b/src/main/java/no/bioforsk/vips/model/roughagenutritionmodel/RoughageNutritionModel.java
index 50a724661daf3f58820cfe408093542cb87b95e1..25f96d14edb3c56713ba3df8868137c3da9a68a7 100755
--- a/src/main/java/no/bioforsk/vips/model/roughagenutritionmodel/RoughageNutritionModel.java
+++ b/src/main/java/no/bioforsk/vips/model/roughagenutritionmodel/RoughageNutritionModel.java
@@ -246,6 +246,7 @@ public class RoughageNutritionModel implements Model {
             List<WeatherObservation> globalStraaling, Q0
             Date foersteslaatt, 
             Date andreslaatt, 
+            Date tidligsteVekststart,
             int jordtype, 
             int kloeverandel, 
             List<OptimizationObservation> observasjoner