Logically, I would think if you could grow row crops, you could grow pasture grass. I think the benefit of row crop land is the crop farmer has probably corrected any drainage problems and has eraticated the weeds and brush; and assuming he was pulling soil samples for his crops, he probably kept up the fertility of the soil up to produce his crops.
I bought some old pasture land which was highly neglected for several years; weeds, brush, low fertility, etc. My ag ext. agent suggested I rent it out to a sweet potato farmer for a year to clear the land and kill the weeds - then establish my pasture after the harvest. I chose a different route, but it would have been a good way to establish a good seed bed for sprigging.
Good Luck.