condition mean min max 12pM Fe,Midday 24.7077 24.7077 24.7077 12pM Fe,Midnight 27.2021 25.3473 29.0569 58pM Fe,Midday 20.2279 20.2279 20.2279 58pM Fe,Midnight 22.317957142857143 0.0 27.4665 233pM Fe,Midnight 19.256133333333334 17.8927 20.0306 1160pM Fe,Midday 28.400257142857143 23.7323 35.5909 1160pM Fe,Midnight 27.695516666666666 17.5782 36.3094 High carbon,Dark 39.732725333333335 8.41758 73.2574 High carbon,Light 38.86293846153846 25.6489 63.9418 Low carbon,Dark 23.2639 23.2639 23.2639 Phloroglucinol 60.2795 51.367 72.6823 Silicon starvation,12h 86.8436 86.8436 86.8436