condition mean min max 12pM Fe,Midday 28.7622 28.7622 28.7622 12pM Fe,Midnight 26.866 25.4755 28.2565 58pM Fe,Midday 24.5874 24.5874 24.5874 58pM Fe,Midnight 22.95782857142857 14.9365 43.3245 233pM Fe,Midnight 16.3534 15.5107 17.6086 1160pM Fe,Midday 21.734928571428572 19.19 23.4807 1160pM Fe,Midnight 27.5456 12.6352 39.4493 High carbon,Dark 17.62446 10.0444 23.433 High carbon,Light 16.200733846153845 9.57394 24.5058 Low carbon,Dark 15.4471 15.4471 15.4471 Phloroglucinol 32.06183333333333 27.8748 39.1084 Silicon starvation,12h 19.7626 19.7626 19.7626