awesome! never seen a "disc" used that way before. seen them used for creating mounds for like potato hilling, harrow setups, etc... but actually using them like a shovel like a moldboard plow. that one is new to me!
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looking back at the links... i am wondering if a "disc plow" would actually be able to handle drought years, were ground is so dry and cracking (extremely hard surface crust a few inches deep). i have a tough time just getting. rippers on a box blade or like to sink in. and then keeping them in ground... if i can get a moldboard plow initially sunk down, it tends to sink far enough down, that the tip of a moldboard plow stays below the hard surface crust, and simply rolls the hard stuff over, and reduces amount of force err traction needed to keep things going...
the "disc plow" videos. makes me wonder if they can be set at enough angle. to get up under the hard surface crust in the ugly drought years.
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the idea of rolling around or over rocks in a field sounds awesome. vs dragging them up or hooking up under them via moldboard plow. i have hit some tree roots, and boy does it snag up on them. so far busted through all of them. granted this is just a little backyard garden doing, breaking up fresh ground that has never been correctly prepped for a garden. but still. once you get past the initial prep of acreage to farm.... it should be all ok.
i don't live any place were folks say they "grow rocks" so i have no experience with that. but might see a "disc plow" maybe something for them temporarly, until they can bring in a rock removal unit ?
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i don't know how far a disc plow can go down into the ground. so below diagram most likely completely off.