I can help you out
As far as soybeans go, they are fairly easy to grow. Soil types around here in WI vary greatly, and people grow beans in every single one. The biggest thing is the amount of water they receive. If you are using them for a late season food source-they will need more water than if growing them as a forage type food plot. Fertilizer really isn’t a HUGE deal (won’t need nitrogen, soybeans get their nitrogen from a process with bacteria called nodulation-won’t get into the fancy details ). Potash is what most guys use as a starter fertilizer, and then add in whats needed (you will find out with a soil test )
As far as the beans themselves, you want to make sure you grow an indeterminate, long day variety of beans. The indeterminate means the beans will flower earlier and continue to flower as the plant grows (plant doesn’t have to be completely mature for flowers to develop). If you were to grow a determinate variety, the plants would have to be fully mature before flowering (and with an early frost, you could lose all your plants). The long day soybean plants will ensure that the plants are getting the right amount of light to grow properly. If you planted the short day variety, your plants would flower much later than you would want.
One more important thing I will add is make sure that you buy inoculated seed or by inoculation bacteria to mix in with the seed. It is much easier and cheaper to get pre-inoculated seed. Without the inoculation (bacteria that helps produce the nitrogen), your soybean plants will be severely stunted and produce little to no beans themselves.
I hope this helps! Sorry to write a book, but these little details will REALLY increase the odds of them working well!
Let me know if you have any more questions! I’d be happy to help (I’m a Crop and Soil Science Major at UW-River Falls)