Sounds like a lot of work. I would try air layering with wire girdling first. Works with peaches.
I don’t see how you could bury a peach? Usually buried limbs root on most things, but maybe not all? The air layering technique takes time, but can work. It might not always work. I myself have never done it on peach. I have air layered figs, honeyberries, some flowering, shrubs/trees like wisteria. I didn’t even girdle any of those. A user here used to root peaches with air layers. Unfortunately the gentleman has passed away.
See
1 Like