At my company we sometimes use CDs, so we buy them in stacks of 100. Each stack has a tube-shaped cover. Well, this looks just like a bucket. So I inverted it, so open side is up, cut off the bottom (was top), and put it around my tomato plants, and pushed it 1 inch down into the soil. Now when I water, the water stays with the plant and goes deep to the roots.
It's a great way to save water and prevent cutworms.
Picture here:
http://s3-external-1.amazonaws.com/w...einfDetail.jpg
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