Maize grows too slowly - harvest DAS >350

[LenLon]

What happened?

I'm currently running a multiple zone simulation, growing different cereals, one per zone. Barley, wheat and canola work fine, but my maize is somehow taking almost a year to be ready to harvest, with some years it getting not harvested at all before the next sowing date is reached.

This happens for multiple cultivars, though I haven't tested them all.

Daily outputs show that all phenological phases after EndJuvenile are really long, with Flowering taking more than a month etc. How does this happen? I've never had this problem before.

What Operating System are you on?

Windows

[LenLon]

Simulation file: Sims.zip

[LenLon]

And a typical summary output:

1990-05-01

maize_silage.Maize: A crop of Maize (cultivar = sc401) was sown today at a population of 6 plants/m2 with 1 buds per plant at a row spacing of 750 mm and a depth of 50 mm

1990-05-13

maize_silage.Maize.Leaf:        Germination
                                LAI = 0,00 (m^2/m^2)
maize_silage.Maize.AboveGround: AboveGround = 0,00 (g/m^2)

1990-05-17

maize_silage.Fertiliser: 54,5 kg/ha of NO3N added at depth 50 layer 1
                         54,5 kg/ha of NH4N added at depth 50 layer 1
                         40,4 kg/ha of CalciteCA added at depth 50 layer 1

1990-05-26

maize_silage.Maize.Leaf.Leaf1:  Initial area is more than max area for cohort 1.
maize_silage.Maize.Leaf:        Emergence
                                LAI = 0,00 (m^2/m^2)
maize_silage.Maize.AboveGround: AboveGround = 0,00 (g/m^2)

1990-06-26

maize_silage.Maize.Leaf:        EndJuvenile
                                LAI = 0,01 (m^2/m^2)
maize_silage.Maize.AboveGround: AboveGround = 0,65 (g/m^2)

1990-07-12

maize_silage.Maize.Leaf:        FloralInitiation
                                LAI = 0,17 (m^2/m^2)
maize_silage.Maize.AboveGround: AboveGround = 11,00 (g/m^2)

1990-10-01

maize_silage.Maize.Leaf:        FlagLeaf
                                LAI = 5,90 (m^2/m^2)
maize_silage.Maize.AboveGround: AboveGround = 1055,07 (g/m^2)

1990-10-03

maize_silage.Maize.Leaf:        Flowering
                                LAI = 5,85 (m^2/m^2)
maize_silage.Maize.AboveGround: AboveGround = 1075,13 (g/m^2)

1990-11-02

maize_silage.Maize.Leaf:        StartGrainFill
                                LAI = 1,79 (m^2/m^2)
maize_silage.Maize.AboveGround: AboveGround = 1281,31 (g/m^2)

Adding a graph on the DAS values at harvest:

The y axis is labelled wrong and doesn't update, no matter what I change the y variable to - that's a separate bug/issue I suppose 😆

[BrianCollinss]

How's temperature?

[LenLon]

How's temperature?

Fine, I think?