condition mean min max 12pM Fe,Midday 1.45747 1.45747 1.45747 12pM Fe,Midnight 8.295395 5.98079 10.61 58pM Fe,Midday 0.0 0.0 0.0 58pM Fe,Midnight 6.852378571428572 0.0 12.391 233pM Fe,Midnight 0.9127223333333334 0.0 1.81533 1160pM Fe,Midday 3.05525 1.11971 5.82978 1160pM Fe,Midnight 6.7707125 0.0 14.6763 High carbon,Dark 0.33270933333333336 0.0 2.60722 High carbon,Light 0.0 0.0 0.0 Low carbon,Dark 0.0 0.0 0.0 Phloroglucinol 0.6619833333333334 0.0 1.98595 Silicon starvation,12h 0.0 0.0 0.0