condition mean min max 12pM Fe,Midday 41.0427 41.0427 41.0427 12pM Fe,Midnight 38.2415 38.1275 38.3555 58pM Fe,Midday 33.3041 33.3041 33.3041 58pM Fe,Midnight 18.39635714285714 0.0 23.7247 233pM Fe,Midnight 20.2028 19.6386 20.7308 1160pM Fe,Midday 30.59827142857143 28.0213 34.3256 1160pM Fe,Midnight 7.731870000000001 6.34154 9.38015 High carbon,Dark 13.581132 5.10343 24.4984 High carbon,Light 8.597806153846154 1.66532 15.301 Low carbon,Dark 15.5207 15.5207 15.5207 Phloroglucinol 13.250933333333334 10.2238 18.6846 Silicon starvation,12h 17.9714 17.9714 17.9714