chisle plow

I broke up virgin pasture this way a couple of years ago but hit it twice in two different directions and then disked it. Turned out beautiful
 
Probably going to depend if it is hard clay ground, or very heavy rooted, or Sandy light ground with a weak stand of grass.

I can see three different outcomes in my head; terrible hard lumps, soft but tangled lumps that are hard to smooth, and works good?

Paul
 
In heavy sod and red clay in my area,chisel plowing works fine if the grass is short but after chiseling plowing have to wait for a couple rains for the root mass to decay down some then disk to make a good seed bed.Hitting it with the disk immediately after chisel plowing will speed up the decaying process.
 
I never chiseled sod, but in the mid 80's when I took over the family farm, I chiseled the entire farm. My dad had never chiseled, and he never even plowed over a couple inches deep. On plowing, he always said, "Just deep enough so it turns over". Needless to say, all of the fields were almost like sod.

That being said, that fall after harvest I rented a 1086 Farmall and a 13' chisel plow and chiseled the entire farm about 12" deep. It was tough going. Full throttle, first gear all the way, with the TA pulled back half the time. I almost hated what I put that tractor through.

By the next year, I had an 856 Farmall and an 11' chisel plow of my own and did it again. The ground loosened up, and within about three years I could roll along with that 856 in low 4th at about 4.5 mph while chiseling.

I wouldn't think doing sod would be worse than that.
 
My concern would be that it turns over a small amount of dirt onto the sod and never really turn that over.

What are your plans for this field?
 
My consern would be the roots that slide between the shovels and not getting tore off so they would keep on growing. Not any chunks of sod. The disk chisel shanks are 15" apart and standard 3" shovel leaves a 12" strip between shovels for the rooth not to get cut off for plant to keep on growing. Now a plain chisel plow has shanks 12" apart so that would leave a 9" strip to continue growing. When they chisel sod they rely on either a disk or field cultivator to get rid of those strips of undamaged roots of the sod.
 
Does just as good if not better than a moldboard unless you have a big heavy disk or not very heavy sod to begin with
 
Chisel plows are typically set up with shanks on 12 inch spacing, not 15 inch. Teeth can be anywhere from 2 inch wide to 4 inch twisted shovels. One pass in any ground will turn about 30% of the ground. One pass in sod/alfalfa ground, is not enough. Here, chisel one time in the Fall, a second time in the Spring, at a slight angle to the first pass, then do secondary tillage before planting. ie disc, but preferably a field cultivator.
 
Even with a moldboard you?ll have big chunks of sod to deal with . If you have a good disk you can disk a couple times first then moldboard and that will help with chunks of sod . I really prefer the chisel plow going about 3 different directions then disk it or harrow it . I?ve broke out crp ground with my chisel before and on the last pass drag the harrow behind and it does a nice job
 
Running 16 inch wheat land sweeps on mine and the shanks are on 12 inch spacing . I run a row of chisel points on the front row when I?m breaking old ground to get it go in
 
Had an uncle that had the same philosophy about only plowing deep enough so it turns over. Then he would go on to say "there's nothing down there that I want up here" He raised some
good crops.
 
A lot of places the top soil is only 6" deep and if you go deeper you are pulling up yellow clay and mixing it in the top soil. I did not like to do that.
 
(quoted from post at 23:22:23 08/19/18) The agronomist swears you don?t need to go over 6 inches deep .

The agronomist probably isn't looking at clay that been abused for 40 years and has a hardpan about a foot or 15 inches down that traps all the water on top. I don't know about sod ground, but I think a good heavy chisel would break up a lot of that hardpan given a small enough chisel and big enough tractor. I do know that where I went real deep by accident, like 16-18", one fall with a neighbors big tractor, the water doesn't sit in those areas anymore. But I was using a moldboard and turned up some nasty stuff that wanted lots of manure before it would grow anything much.
 

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