Add comment

src/crop/almass.jl

@@ -615,13 +615,15 @@ function growthcurve(cs::CropState)
     if fertiliser in cs.events
         curve = cs.croptype.highnutrientgrowth
         if ismissing(curve)
-            @warn "fertiliser used, but highnutrient growth curve is missing. Using lownutrient growth curve."
+            @warn "fertiliser used, but highnutrientgrowth curve is missing. Using lownutrientgrowth curve."
             curve = cs.croptype.lownutrientgrowth
         end
     else
         curve = cs.croptype.lownutrientgrowth
         if ismissing(curve)
-            # @warn "fertiliser not used, but lownutrient growth curve is missing. Using highnutrient growth curve."
+            # Note: This warning is commented out, as this is quite
+            #       common for e.g. "permanent grassland"
+            # @warn "fertiliser not used, but lownutrientgrowth curve is missing. Using highnutrientgrowth curve."
             curve = cs.croptype.highnutrientgrowth
         end
     end