Why are crops planted in circles? On aerial views you see circles of green

[raccoon]

inside a small square.

[petronius]

1. Center pivot irrigation:

http://en.wikipedia.org/wiki/Center_pivot_irrigation

[snooper2]

2. Also, some tractors can only make left turns

Like NASCAR

[madinmaryland]

7. Water the field at 200mph!! Maybe that explains crop circles!

[applegrove]

5. I saw one of those circle irrigation thingys when I visited a ranch in Alberta when I was 16. Really

cool how concentrated they plant the crops. The rancher also used a small plane to follow his cattle.

[XemaSab]

10. Word

[rrneck]

3. Alien bullseyes. nt

[intaglio]

4. It is to confuse cereologists about crop circles

http://en.wiktionary.org/wiki/cereologist

[The Velveteen Ocelot]

6. Center pivot irrigation.

[dimbear]

8. Sometimes you have more land than water.

You see those circles where water controls.

[Major Nikon]

9. I remember flying from Texas to South Dakota at low altitude

You could look down and see the circular crops, wait one hour, and look down again and see the exact same thing. At first they look kinda cool from the air, then you realize there's no end to them.