How do farmers also have their fields plowed so straight for so far? Do they use GPS guidance somehow? And if they use some sort of tech, were they able to plow fields this straight back in the day?
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Everyone is mentioning eyeballing the first pass but no one has mentioned that old tractors had a little hood ornament way out on the tip of the nose. The ones i am most familiar with are internationals from the 70s and 80s, and they had a small black piece shapes like a stretched out pyramid.
You line that up with a spot in the horizon, like a tree on the far edge of your field and keep it there. Many farmers also grew up working the same fields year after year and just kind of got the hang of it.
Small tractors and small farms today still use this method, you wont find gps until you get into really large plots of land. The massive operations out west absoluetly use gps and self steering machines.
Corn mazes are also plotted on gps, although i am not sure how they plant them.
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