And why they aren't very common these days, and why John Deere is discontinuing it's model of the Moldboard plow, the venerable 3710. Switch plows are being manufactured, and some dairies like Moldboards for occasional use, just because they can get nutrients further into the ground, so you don't have stratification from manure and crop residue.
New Holland made many different models of square balers through the 1960's, and they all had similar components. In fact, modern square balers share many of the same general components. Using my New Holland 269 square baler as an example, I explain how the baler works, from incoming power through the PTO all the way to throwing a completed bale into the wagon, including the operation of the knotters. I also give maintenance tips and how to adjust the baler to make good bales.
I chisel plow the manure that we spread so it breaks down faster! By incorporating the manure, you'll lose less Nitrogen to volatization.
Just a campfire from last summer.
Earth Day is a perfect time of the year to watch people till the earth.