Same here for the most part, We've been 100% no til since the late '70's until a recent bit of experimentation. But as one of those experiments this past year we used a strip till unit on half of an 80 acre field we've farmed since the '50's. Put P and K down 8" to 10". Had best yields ever this past fall (due to many conditions, mostly great weather) . Parts of the field where we did NOT use strip till averaged just over 210. Areas where we DID put the fertility down deep went almost 240. Even with that, I'd want to see more data over a wider array of condition before I'd say the strip tilling was the only force at play here.
Also worth considering, a field that you've surface applied fertility for 35 years or more, you'll have SOME leaching and have SOME fertility work it's way down, even without tillage of any sort. A "new field" that hasn't had much attention, and may or may NOT be soil conducive to fertility movement in the first place probably won't have much P show up below surface. Lot of variables...
Bottom line, a new field that is P deficient going in would see FAR better results by placing P in root zone. (along with looking at conditions where P is tied up in clay soils. Just because you put it there doesn't mean it will always be available to the crop)
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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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