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southern MN | My part of MN, you have a plow or chisel plow or disk chisel or a ripper. All do fall tillage, deep, rough, leave big lumps.
Actually a decade ago the popular term was 'a DMI rig', as in, I DMI'ed my field yesterday... Sorta like you blow your nose in Kleenex, not tissue....
In spring you follow with a field cultivator to smooth out the soil.
That is followed by a harrow - now a days the harrow is a part of the field cultivator, typically 2-3 bar spring tooth to really smooth out the ground.
Used to be a disk would be used in spring, but we found out our wet clay soil packs down hard with a disk, so they are mostly parked in the grove and used for special needs. Altho now I see more Wisheck (sp?) big huge disks being used in fall for heavy tillage in our dry falls. But that is a while different beast than a 'disk' we are used to around here....
The most puzzling implement to me is a 'disk harrow'. A harrow is a rigid tooth or spring tooth light implement, smooths out the ground, only goes an inch or so deep. A disk has the metal plates and cuts up the soil. Very different implements. Seems 'disk harrow' is a southern term, and that's fine, but was very confusing to figure out what is being talked about because to me a disk and a harrow are 2 very different things.
Chisel plow is a heavy thing with very strong shanks and a 2, 3 , or 4 inch bottom that is straight or twisted, and designed to go 8-10 inches deep. (Ripper or digger will go a little deeper, to rip or dig out the plow pan.) A chiesel plow does _not_ have duck feet on it, you couldn't pull something like that deep enough to matter in our heavy clay, rocky ground. It just wouldn't work. That thing in the picture in the other thread with the 15 inch shovels - no way, that would be a useless tool around here, you'd either stall the tractor, or break the shanks off, or skid over the top of the ground. It would need 4 inch or less bottoms to work in the ground 'here'. Now I understand it is what it is in the soils it's used in, but I have never called anything with duck shovels on it a chiesel plow, because such a thing won't work deeper than 4 inches around here.
So to the question - a chisel plow has 2-4 inch shovels and heavy shank and goes 8 or so inches deep in the heavy clay ground to bust it up some, big chunks, typically on 12 or 15 inch centers. Works well in fall, not so good in spring.
A digger or ripper tend to go a little deeper, might be spaced farther apart, and have special little shovels on the tips, to bust & lift and shatter the hard pan.
--->Paul | |
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How do you define "chisel plow"?
