I am working on rice root microbiome (rhizocompartments) and meanwhile I want to analyse soil chemical contents as well. I was reading several papers and one book about measuring Eh. The situation that I am growing rice is different from rice fields. My rice are growing in pots and each pot contain one type of rice and pots are placed in tubs. I flooded tubs in order to water pots. I was wondering if anyone could suggest the best way to measure Eh from my soil in pots. Also, I am not sure if measuring Eh would be a good way for soil chemical analyzing.

Thank you very much.