I've talked
here, here, and
here about our love of cedar posts for our trellis. Here's a real tutorial. First you cut the cedar posts (see first link above) in the woods, sometimes split them if they are too wide, and then sharpen them. From there they get put on the wagon, usually a few at a time with the front end loader on the tractor.
wagon full of split cedar posts ready to go to the vineyard
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Then Dad takes the post off the wagon, and carries it to it's spot in the row of grapes.
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Then he holds the post, and lines it up straight with the vines, and other posts, and other rows while the tractor pushes it in the ground.
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This is a picture of Dad motioning to push the cedar post into the ground.
This is the end result; rows and rows of new cedar posts out of our forest, ready to have wire attached and hold up vines.