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| You might want to read this:
https://cropwatch.unl.edu/2019/managing-wheat-residue-and-controllin...
The next thing I would look at is a roller crimper. It is used to kill cover crops and matt them down to prevent weed growth. then you plant in the matt.
But in your case, you can just crimp it, and probably avoid the post harvest spraying, to knock down weeds and volunteers that are in your stubble. and gives it soil contact for bacteria to start to break it down as well as retain moisture and organic matter. However, if you notice they are planting right behind it, which means you probably need a different planter set up.
https://www.mcfarlaneag.com/roller-crimper
The concept is similar for their say incite and cobra models
https://www.mcfarlaneag.com/universal-tillage-incite
They have a roller basket which acts similar to the roller crimper or even some of the corn stalk shredders that fit on the corn head.
If you decide to burn it, you would get the most bang for your buck by charring it, rather then burning it. The difference is keeping the oxygen low, and letting the heat from the burning gases bake the material without burning up the carbon which is useful for your field. However that is a bit more work, and the char should be innoculated with bacteria and fertilizer or else it can suck up the nutrients you want to leave on the field. Usually I see burning done in pastures to get rid of thatch, you will retain some of the nutrients but not nearly all of them as some will leave as partiulate matter in the smoke. And it provides are really good environment for weeds to germinate.
I personally, would also tinker with the idea of spraying it with bacteria that contain like lactobacillus which breaks down cellulose especially if you matt it down or shred it. It should have a pretty decent environment for bacteria underneath it.
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Burning wheat stubble
