condition mean min max 12pM Fe,Midday 16.454 16.454 16.454 12pM Fe,Midnight 13.908249999999999 12.9762 14.8403 58pM Fe,Midday 14.8019 14.8019 14.8019 58pM Fe,Midnight 7.53252 0.0 10.8062 233pM Fe,Midnight 5.569756666666667 5.20915 5.99235 1160pM Fe,Midday 10.182981428571429 9.04956 10.7974 1160pM Fe,Midnight 6.773176666666667 3.35092 9.96111 High carbon,Dark 4.847011133333333 0.434641 12.7096 High carbon,Light 3.374172076923077 0.968667 10.1088 Low carbon,Dark 6.46146 6.46146 6.46146 Phloroglucinol 8.54185 6.70181 10.1425 Silicon starvation,12h 4.29082 4.29082 4.29082