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Re: Why a disc plow?

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ron in MN

02-14-2003 13:50:32




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Are you referring to the picture named "Krause Plow"? If so, Gary is the only one who has answered this correctly. The one named "Krause Plow" is actually a "one-way" plow. Disc plows are much heavier and were made to go down where the ground was too hard or rocky for a moldboard plow to be used. Real disc plows were very heavy loads. And as Gary said they leave very rough surfaces. The blades on a disc plow are individually mounted whereas on a one-way or disc harrow the blades are mounted in gangs with a common shaft. Seems there would not be a need for them anymore since the modern disc rippers can do anything a disc plow could do.

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Lee

02-15-2003 01:45:51




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 Re: Re: Why a disc plow? in reply to ron in MN, 02-14-2003 13:50:32  
I'll have to disagree with the last half of your last sentence. A one-way is the _only_ implement that can take inches of debris and totally, completely bury it with no trace left on the surface. Any thing else just kinda half covers it and mixes it in some.

The reason they were used to start with would be economy - they were cheap to build and sell. The reason they are no longer used is due to the fact that they took earth 4 inches deep and flipped it over exposing some very wet soil to the drying winds. Hard to make it farming when you throw your water away like that. People did better with sweeps, rod weeders, etc. and the one-way fell out of favor - rightly or wrongly, it was also blamed for the dirty 30's. At least that's how it was here on the edge of the wheat belt.

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MIKE HANLEY

02-14-2003 17:23:51




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 Re: Re: Why a disc plow? in reply to ron in MN, 02-14-2003 13:50:32  
In my old text book dated 1955 all the types mentioned are pictured under DISC PLOWS. A IH unit with a gang mount with 15 discs and a seeded mounted. It shows an IH and a J.D. with 3 and 4 bottoms mounted like a moldboard plow. A unit made by Schfer Plow Co. with a gang style with 13 discs. A J.D. 3PT with 3 discs mounted like a mouldboard plow on a 70 tractor. A Schafer Plow Co. for a 3PT with 6 discs mounted in a gang. A 3PT made by Baker-Barrett Plow Co. with 3 discs Mounted like a moldlboard plow. Author of the book, Harris Pearson Smith A.E. Professor Texas AG Experiment Station Registered Professional Enginer. In the mid 1960's I had to pass a written test on this book at the UofW Col Ag.

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MIKE HANLEY

02-14-2003 17:50:05




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 Re: Re: Re: Why a disc plow? in reply to MIKE HANLEY, 02-14-2003 17:23:51  
ADDITIONAL: From the bookThe disc plow was brought out in a effort to reduce friction by making a rolling bottom instead of a bottom that would slide along the furrow. It cannot be said with authority that after the extera weigth is incoorated into the plow it will have any less draft than the moldboard type. However it is adapted to conditions where the moldboard will not work such as 1) Sticky, waxy, gumbo, nonscouring soils and soils having a hardpan. 2)Dry hard soil that can not be penetrated with a moldboard. 3)Rough stony and rooty ground where a disk will ride over the rocks. 4)Peaty and leaf-mold soils where a moldboard will not turn the slice. The disc plow is used in the south and north and vety extensivly in the Southwest and semihumid regions of the Middle West. HOME WORK IS NOW DONE. CAN I NOW GO TO THE PROM?

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