condition mean min max 12pM Fe,Midday 6.5586 6.5586 6.5586 12pM Fe,Midnight 23.34735 21.3066 25.3881 58pM Fe,Midday 1.61204 1.61204 1.61204 58pM Fe,Midnight 107.8657 48.4111 165.032 233pM Fe,Midnight 68.51023333333333 65.728 70.3663 1160pM Fe,Midday 19.573414285714286 11.7478 41.0489 1160pM Fe,Midnight 250.78033333333335 180.009 328.524 High carbon,Dark 43.180058 3.84554 133.029 High carbon,Light 34.82402384615384 1.34936 117.615 Low carbon,Dark 10.0654 10.0654 10.0654 Phloroglucinol 9.088383333333333 4.83755 13.2426 Silicon starvation,12h 14.3046 14.3046 14.3046