IMO3 substrate options?

Hi,
I have an ok IMO2 and have been looking for a local IMO3 carbohydrate. Wheat mill run was my 1st choice but I can’t find it. My local feed store has wheat bran but supposedly it’s different. What do you use or have seen others use?
I have an abundance of oak and maple leaves that I was going to use for my carbon. Does this sound ok?
I’m mainly using Chris Trumps IMO3 video as a reference.

Cheers,
Jimmi

Hi Jimmi, your post really perked my interest. I'm mostly familiar with Masanobu Fukuoka's natural farming methods, but not Korean. So, another opportunity to learn is welcome, and sent me on a bit of a research jaunt. I am particularly interested in soil biology and the soil ecosystem, so I thank you for the reference to Chris Trump's videos.

For what it's worth, my take is that if one is trying to encourage indigenous microorganisms, then the best route is to utilize indigenous additives. If you have homegrown supply of oak and maple leaves, I'd say, experiment. I think the best case scenario is always one where the system is as closed as possible. I mean, if we continually have to import inputs, then that seems to negate the "natural" in any natural farming system. Does that make sense?

A lot of knf folks become dogmatic, which is not what matter Cho wanted... Jadam, made by his son, can be done with any native plants. I'm working on learning both, but imos are beyond me, I just use the jadam JMS... Good luck getting an answer, iirc trump used his macadamias and their shells

But remember Master Cho said "look around you, everything you need is right here"