I across fields all the time. yes I would prefer to walk field rows but with the leaves and the twigs that you are bound to encounter it is really safer, noise wise to just cross the field and make as little disturbance as possible doing so. Like a band aid hurry and get it over with and get to you stand if you get there early enough and with out much noise you will probably be ok, if you did spoke something out of the field they may come back in like and hour that has happened to me 9 out of the 10 times i have ever spooked deer out of the field they have come back. I look at it this way your playing odds, if the deer are there in the area already or when they move through. Best rule of thumb in my grandfathers opinion is treat getting to a stand in the morning like a band-aid do it in the shortest possible time with as little disturbance as possible.