condition mean min max 12pM Fe,Midday 57.6414 57.6414 57.6414 12pM Fe,Midnight 40.587 39.0282 42.1458 58pM Fe,Midday 44.4125 44.4125 44.4125 58pM Fe,Midnight 29.930685714285712 0.0 38.4708 233pM Fe,Midnight 21.137999999999998 20.4946 22.0437 1160pM Fe,Midday 37.243785714285714 34.5411 40.0982 1160pM Fe,Midnight 16.960266666666666 13.1902 21.5309 High carbon,Dark 31.826442 8.15193 46.8493 High carbon,Light 33.79404230769231 6.96629 70.2914 Low carbon,Dark 20.6063 20.6063 20.6063 Phloroglucinol 30.7944 25.8458 35.5857 Silicon starvation,12h 31.8375 31.8375 31.8375