. Canadian journal of agricultural science. Agricultural Institute of Canada; Agriculture. April, 1921. 5. In sod run the colter closer to the shin and also down almost to the bottom of the furrow. 6. Sometimes by setting the colter a little "wide" the scouring of the plow is improved. 7. When a badly worn bearing causes the colter to wobble, get it fixed, because it will increase the draft besides doing inferior work. Take as good care of your colter as you do of your shai'cs. Types of Colters. There are four common tj'pes namely, the fin^ knife, rolling, and skim colter (commonly c
. Canadian journal of agricultural science. Agricultural Institute of Canada; Agriculture. April, 1921. 5. In sod run the colter closer to the shin and also down almost to the bottom of the furrow. 6. Sometimes by setting the colter a little "wide" the scouring of the plow is improved. 7. When a badly worn bearing causes the colter to wobble, get it fixed, because it will increase the draft besides doing inferior work. Take as good care of your colter as you do of your shai'cs. Types of Colters. There are four common tj'pes namely, the fin^ knife, rolling, and skim colter (commonly called a jointer). In good scouring soil that is free from stones, the com- bined rolling colter and jointer gives splendid satisfac- tion in covering weeds. SCIENTIFIC AGRICULTURE 153. Figure 7A Jointers are used to cut and turn over the edge of the furrows close to the colter so that when the slice is turned over, all surface growth will be completely buried. It simply turns over a small furrow, which lies on top of the furrow slice. This is turned over by the moldboard, the result being a clear edge between the furrows and no weeds visible. The jointer should be set with its point directly below the hub of the colter and so as to cut not more than two inches deep. The point should be set verj^ close to colter, but a small clearance should be allowed between jointer and colter. This clearance prevents the jointer from catching and retaining trash. Figure 8 shows a typical combined rolling colter and jointer. So many people have asked if the jointer is to clean the colter that the writer takes this opportunitj" of saying it is not for this purpose. m/i//!^ t/iem easy foraa. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Ottawa [etc. ]
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