So composters produce ammonium... From there - nitrifying bacteria turn it into No2- or what might be called.. Nitrites.
They become Nitrates because of the activity of 'Nitrifying Bacteria' - known as - NO3- ...
From there they are either - asimilated into the plant directly , as NO3- or - the NO3- dissipates into the atmosphere.
Is that a fair assesment of the chart??!?
Water/air ratio in relation to water flow to/from any plantlife is a Basic Fundamental Concept in understanding seed germination as much as transplanting a 20' Maple tree in 90 degree weather...