parameter

• parameter 3
• parameter 4
• parameter 5

observable variable

• current water content of layer i
• evaporation of the covered soi
• organically bound nitrogen
• potential evaporation of crop
• potential evaporation of the soil
• total water demand of the soil
• water demand by transpiration

internal variable

• amount of percolating water
• effective precipitation rate per day
• entry of inorganic nitrogen
• gaseous losses of nitrogen
• inorganic nitrogen content in layer i
• leached nitrogen
• mineralized nitrogen
• soil temperature
• soil temperature response function
• specific heat of the total soil
• thermal conductivity
• volumetric fraction of solid soil matter
• volumetric water content
• water equivalent of melted snow
• water equivalent of snow