condition mean min max 12pM Fe,Midday 15.3773 15.3773 15.3773 12pM Fe,Midnight 18.788800000000002 18.4694 19.1082 58pM Fe,Midday 13.0316 13.0316 13.0316 58pM Fe,Midnight 12.762171428571428 0.0 17.7437 233pM Fe,Midnight 13.809266666666666 12.8888 15.5112 1160pM Fe,Midday 10.351301428571428 6.0642 13.0723 1160pM Fe,Midnight 5.679741666666667 3.16537 7.08629 High carbon,Dark 7.427637 0.686535 14.6115 High carbon,Light 4.063100153846154 0.586757 8.10607 Low carbon,Dark 10.5581 10.5581 10.5581 Phloroglucinol 10.203483333333333 6.51435 12.7342 Silicon starvation,12h 13.6783 13.6783 13.6783