I prefer fixed blades and a perfectly tuned bow.
I prefer hunting shelfs and pinch points. However a field can be a great place. Find a well used trail. Often times in a corner of the field. Not all corners are the same. Look back into the woods 20-25 yards from a corner and see if you can find where they are approaching or exiting the field. If you know where they are headed then you are half way there. Sometimes a little early morning observation, or late afternoon spying is helpful (some people call that preseason scouting).
If you find the corner that they enter or leave through then sometimes you can back trail them to a pinch point for even more concentrated traffic.
This same plan will work on not only a field but a thicket (an area grown up so thick that you can barely walk through it), a Cedar/Pine stand, or a bottom area between ridges and on the hardwood ridge tops. I really like hunting shelfs. Those flat areas on the side of ridge where the deer pass through from bedding to feeding areas, or use as an escape route from hunting pressure.
Deer don't usually travel in a random pattern. They usually have a place they are going and a place they are leaving. The route they choose is what you are trying to find. When deer are actively feeding their movement is rather random so if you are hunting a feeding area make sure you are placing your stand in a spot that will make it difficult for the deer to detect you. Wind, movement and noise have saved more deer lives that anything else. So, protect yourself against those.
Draw up a plan. Find the travel routes, the feeding areas and the bedding areas. Then pick a stand that will provide you a high percentage chance of not being seen, smelled or heard and you will get your opportunities.
Become proficient with a bow. You don't have to be Robin Hood, but you do need to be proficient. "I shot that buck TOO perfectly!" said no bowhunter ever.
Learn anatomy. I am amazed how many bowhunters do not know where the heart or lungs are on a deer.
Be very selective in your shot. Placement is key. Don't ever shoot a deer that you hope you will get. Don't ever shoot at a deer you think you can hit. Only take a shot that you know you will make. You will be wrong often enough to keep you humble. But to risk losing deer on low percentage shots will cause you to quit bowhunting. I would not wish the experience of losing a deer you shot at because he was huge, and you were hoping you could make a shot an a deer you should have never attempted a shot at, on anyone.
Remember that if you don't shoot, there is always the chance that you will get a better chance in a day or month or next season on that same deer. If you shoot him poorly and he runs off and dies and you can't retrieve him, He is never coming back.
Good Luck!