I remember seeing a hydroponic setup on display at the local auction barn when I was a kid- probably around 1957 or so. Oats or barley- grown in water and nutrients until it was about 6 inches tall, then "harvested" and fed to cattle. Harvesting was lifting the mesh basket out of the water and draining for a few minutes, then feeding so much to each cow. Pour some more seed in the basket, adjust the water level, test and add nutrients as needed.
Facilities required for even the average 30 cow dairy of those days was way too expensive, and too labor intensive. I remember dad inquiring about cost for our size dairy, then telling the guy "That's more than I paid for the farm."
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Today's Featured Article - Hydraulics - Cylinder Anatomy - by Curtis von Fange. Let’s make one more addition to our series on hydraulics. I’ve noticed a few questions in the comment section that could pertain to hydraulic cylinders so I thought we could take a short look at this real workhorse of the circuit. Cylinders are the reason for the hydraulic circuit. They take the fluid power delivered from the pump and magically change it into mechanical power. There are many types of cylinders that one might run across on a farm scenario. Each one could take a chapter in
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