condition mean min max 12pM Fe,Midday 5.4256 5.4256 5.4256 12pM Fe,Midnight 4.85319 4.32585 5.38053 58pM Fe,Midday 0.800138 0.800138 0.800138 58pM Fe,Midnight 2.8376585714285714 0.0 4.4348 233pM Fe,Midnight 14.093333333333334 12.5019 15.8076 1160pM Fe,Midday 2.968104285714286 2.09345 3.81751 1160pM Fe,Midnight 6.885315 0.84053 18.4951 High carbon,Dark 19.1572994 0.286641 56.1168 High carbon,Light 9.006298846153847 0.0 30.4739 Low carbon,Dark 4.11432 4.11432 4.11432 Phloroglucinol 7.205513333333333 3.96646 10.1037 Silicon starvation,12h 0.2058 0.2058 0.2058