Are the nutrient numbers the suggested additions? What is the organic content? What are you planning on doing with the field - to state the obvious a mixed orchard may require a different strategy than row crops. what is your budget, timeframe and infrastructure (tractor? water? etc)? Was the field hayed or just mowed?
Maybe to start, as you're putting together your plans, (1) work on applying soil amendments and (2) continue (or start) flail mowing or mulch mowing a couple times a year. Can do this either locally or over the entire field depending upon your plan and resources. This would start the long term process of correcting mineral deficiencies and increasing the organic content of the soil without disrupting the soil food web that is in place. Many organic options take time...Lots of resources on the web for interpreting soil test and converting them into action. Here's one.
https://blogs.cornell.edu/gblblog/files/2016/07/Veggie-Info-Sheet-2016-1jsq90e.pdf
I'm in year two of a 30+ tree orchard, started two hours from my current home at the site of a new house I'm building in a pasture. Common advice (even from beyond organic growers like Michael Philips) is to till and cover crop for at least a season, then sow a diverse pasture mix. To me that seems to be a lot of expense and effort, pretty destructive to the soil ecology, burns up a lot of existing organic material that may or may not be fully replaced by the cover crop, and gets you back to a plant ecosystem you may already have. All for the goal of getting rid of weeds, which you may or may not accomplish depending upon how timely you are with the cover crop regiment, and which you could accomplish anyways with strategic mulching.
I don't yet have any power equipment and I already have a feral, diverse pasture. Albeit one that has been hayed for decades and therefore has been "strip mined" of soil minerals. So I started 6-9 months ahead of planting by scything the tree rows, double digging a 10 sq ft station for each tree, amending with dolomitic lime (for ca, mg, and ph), bonemeal and greensand for potassium and phosphorous. Sheet mulched with the scythed hay. I'm sheet mulching out from the original stations as the trees grow. As the mulch rings from adjacent trees touch I will plant insectary plants, nitrogen fixers and dynamics accumulators.
I would've liked to have done more and would have if I had had the equipment. But I think I did enough right where I needed to with the time and equipment I had at hand. Il do more as I go...starting exactly with what I recommended to you.
I guess that's the overall point - do what you can with the resources you have, tailored to your specific plan, guided by a critical and common sense analysis of all the advice out there.