Introduced Coarse roots as part of the plant. The Plant is now divided in Leaf, Stem, Grain, Coarse Roots and Roots. The Coarse Roots are described similar as stem but the litter from coarse roots are going into different horizons of the soil instead of to the surface litter pool.
Default allocation to Coarse Roots corresponds to the parameter Fraction R which is part of the parameter Table Coarse Roots versus remaining C. The default value for Fraction R is set to 0 to make the new version similar as the previous model as a default setup. PEJ