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  1. #1
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    JD 4100

    Default Chisel plow on sub-compact tractor.

    I have a JD 4100 which has 20HP. I'm hoping to use a chisel plow for primary tillage, followed by a rotary tiller for secondary tillage. I've read varying recommendations on HP per shank, I'm hoping to run at least 1 or 2 shanks, Any opinions, any sources for buying a small chisel plow for a sub-compact tractor?

  2. #2
    Super Member bp fick's Avatar
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    Beaver Creek, Northern Michigan
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    Kubota BX2360

    Default Re: Chisel plow on sub-compact tractor.

    When we took possession of our current property some 5 years ago, I broke up a super large plot for gardening. I don't know, maybe 75 by 250 feet? I had simply purchased a basic "middle buster" at Tractor Supply. If I remember correctly it was around $120 with a coupon I had and a sale price. I can take the plow share off and use it as a single ripper. It is hard work, but it does work. I wouldn't expect to sink it down 9" and expect your little tractor to pull it easily. You can see them at TSC's website. They are sold everywhere, BTW, not just TSC.

    I found the middle buster/potato plow did a good job of doing the initial sod busting. I let that mess fallow over our winter, with it's freeze thaw cycles and started back into it in spring. If I had the disc I have now, it would have been worked and done in a hurry. A tiller would also accomplish the task.
    BP


    "Some chickens, some gardens and a Kubota."

  3. #3
    Gold Member
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    Frozen part of WI
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    John Deere 855

    Default Re: Chisel plow on sub-compact tractor.

    I have an older JD large frame compact (24hp, hydro, turfs)
    I pull my home made 3pt chisel attachment with 21 staggered shanks.... That equates to 6" spacing in each row, and 3" spacing over the ground...
    I can pull it at 3.5 or 5" deep in garden ground.... Five foot wide total...
    Have used it at 2" or 3.5" deep for food plot ground...
    This isn't easy at times as there are a lot of rocks around here....

    I have a home made sub soil tool that pulls easily enough at 12" deep in crop ground..... Except for the mentioned rocks and tree roots...

    Your experience may vary.....
    Good luck

  4. #4
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    Default Re: Chisel plow on sub-compact tractor.

    This is a new plot I"m farming for someone. It has been disced twice already so I'm not going to be breaking any new ground, I'm hoping to run 1 or two shanks 10-12" deep just to get some deep aeration. I have found a fair amount of softball-basketball sized rocks so far, so I don't want to have invest in an ineffective tool. Its a ~1 acre plot so I'm hoping to till minimally, rototilling to incorporate cover crops, and chiseling less frequently on a bed by bed basis.

    Thanks for the responses.

  5. #5
    Elite Member
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    Deere, several

    Default Re: Chisel plow on sub-compact tractor.

    Soil type and moisture?

  6. #6
    Veteran Member Poopdeck Pappy's Avatar
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    Default Re: Chisel plow on sub-compact tractor.

    Quote Originally Posted by pfranco81 View Post
    This is a new plot I"m farming for someone. It has been disced twice already so I'm not going to be breaking any new ground, I'm hoping to run 1 or two shanks 10-12" deep just to get some deep aeration. I have found a fair amount of softball-basketball sized rocks so far, so I don't want to have invest in an ineffective tool. Its a ~1 acre plot so I'm hoping to till minimally, rototilling to incorporate cover crops, and chiseling less frequently on a bed by bed basis.

    Thanks for the responses.
    You are not going to want to have a ripper or chisel shank sunk 10" - 12" in the ground and hit a basketball sized rock. If you do, you're gonna break something on the plow or, even worse, on your tractor.

    Some rippers have shear bolts on them, which creates a "weakest link in the chain" situation, so it will break before something breaks that's not supposed to. Even if you have something that has a shear pin on it, I would suggested taking it at a depth of 4" - 6" at most, and work your way down with multiple passes.
    __________________

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  7. #7
    Platinum Member bdog's Avatar
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    John Deere 4440

    Default Re: Chisel plow on sub-compact tractor.

    I was pulling a nine shank chisel 10-12" deep with my 95 hp 10,000lb tractor last week. It was all my tractor wanted and I had to lift it up in places as I lost traction and would just spin. I really think you need 10 hp per shank minimum with more being better. I don't know if you could pull two shanks or not but if you could you could set them up with the centers of your wheels and you could cover your tracks that way.
    1980 John Deere 4440
    2007 John Deere 322 compact track loader
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  8. #8
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    Default Re: Chisel plow on sub-compact tractor.

    I guess my real concern is that this is a new field that was a woodlot last year, and was cleaned by hand and with machinery before I was here, also the discing was contracted out before I was hired on. So for all I know there could be a fair amount of compaction, so I'm hoping to run a shank or two through the whole field to open it up, and possibly every year or two as needed, also to break up any rototiller pan that may be created. As far as only dropping the shank(s) 4-6" that doesn't seem too useful to me because any decent rototiller can hit that depth easily. Maybe I"ll look into something like this, single shank ripper and only plan on sinking it as deep as i can handle.

    Thoughts?

    I appreciate the feedback.


    EDIT: As far as soil-type and moisture, its a heavy loam, seems clay-y but drains alright, like I said, I was recently hired and haven't had much experience with it. But I think if timed right I can catch it on a light and dry day without much difficulty.

  9. #9
    Veteran Member Poopdeck Pappy's Avatar
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    Default Re: Chisel plow on sub-compact tractor.

    Quote Originally Posted by bdog View Post
    I was pulling a nine shank chisel 10-12" deep with my 95 hp 10,000lb tractor last week. It was all my tractor wanted and I had to lift it up in places as I lost traction and would just spin. I really think you need 10 hp per shank minimum with more being better. I don't know if you could pull two shanks or not but if you could you could set them up with the centers of your wheels and you could cover your tracks that way.
    Yep, I think one ripper is all a 20hp 1,500 pound JD 4100 will handle. Most manufacturers of those ripper plows recommend a minimum of 25hp per ripper shank.

    For example: http://www.umequip.com/tillage/freed...t/soil-ripper/
    __________________

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  10. #10
    Super Star Member
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    Deere 110tlb, 4520, x749, x758, L130

    Default Re: Chisel plow on sub-compact tractor.

    Might wan't to think about old tree roots you might be digging up too. I don't think compaction should be a major concern at this point depending on what you plan to grow. Might be making more work for yourself than is needed.

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