condition mean min max 12pM Fe,Midday 35.9265 35.9265 35.9265 12pM Fe,Midnight 38.82925 36.626 41.0325 58pM Fe,Midday 25.8387 25.8387 25.8387 58pM Fe,Midnight 22.8084 0.0 32.2641 233pM Fe,Midnight 29.230066666666666 26.3338 31.1571 1160pM Fe,Midday 16.677985714285715 13.8684 19.6829 1160pM Fe,Midnight 9.799975 7.47067 12.0185 High carbon,Dark 28.561097333333333 7.85396 52.0635 High carbon,Light 14.089474615384615 2.39732 32.6841 Low carbon,Dark 27.0328 27.0328 27.0328 Phloroglucinol 8.983573333333332 6.21035 10.8532 Silicon starvation,12h 29.1009 29.1009 29.1009