condition mean min max 12pM Fe,Midday 21.2176 21.2176 21.2176 12pM Fe,Midnight 14.97955 14.683 15.2761 58pM Fe,Midday 13.6642 13.6642 13.6642 58pM Fe,Midnight 13.799814285714286 0.0 17.8398 233pM Fe,Midnight 10.270433333333333 10.1953 10.3343 1160pM Fe,Midday 13.851628571428572 11.9246 15.7156 1160pM Fe,Midnight 9.13777 5.29912 15.1088 High carbon,Dark 13.972616666666667 7.01497 22.1464 High carbon,Light 9.638191538461538 2.72982 18.8872 Low carbon,Dark 7.4464 7.4464 7.4464 Phloroglucinol 12.896516666666667 8.09615 19.9727 Silicon starvation,12h 17.6082 17.6082 17.6082