Potential uptake of nitrogen – logistic growth

The potential uptake of nitrogen for logistic growth is determined by the three parameters p_ua, p_ub and p_uc. The blue line was the original simulation. The green line shows what happens if p_ua is doubled, the turquoise line corresponds to a value of p_ub that is half of the original value. Finally the pink line shows the drastic increase in potential nitrogen uptake due to a doubling of p_uc.