condition mean min max 12pM Fe,Midday 45.8489 45.8489 45.8489 12pM Fe,Midnight 29.31225 27.3188 31.3057 58pM Fe,Midday 32.7832 32.7832 32.7832 58pM Fe,Midnight 17.959142857142858 0.0 22.9311 233pM Fe,Midnight 15.674033333333332 13.6356 18.3145 1160pM Fe,Midday 29.418185714285713 26.768 32.7885 1160pM Fe,Midnight 7.961005833333333 6.09429 10.2391 High carbon,Dark 17.931405333333334 3.67008 35.1321 High carbon,Light 16.093493076923078 1.63587 32.5463 Low carbon,Dark 9.40691 9.40691 9.40691 Phloroglucinol 23.5548 20.8946 26.3463 Silicon starvation,12h 25.9548 25.9548 25.9548