SPADING AND PLOWING 



95 



53), called a rolling coulter. This form is very 

 useful in sod ground and in turning under vines and 

 tall weeds. It also lessens the draft of the plow. 



A jointer or skimmer which skims stubble and 

 grass from the surface of the soil and throws them 

 into the bottom of the furrow where they are com- 

 pletely covered. The jointer helps also to pulverize 

 the soil. 



A truck or wheel, attached under the end of the 

 beam. This truck makes the plow run steadier. 

 This is sometimes used to make the plow run shal- 

 lower by setting it low down. This is not right, 

 for it then acts as a brake and makes the plow 

 draw harder. The depth of the furrow should be 

 adjusted at the clevis. 



A plow not only has parts but it has character 

 also. 



CHARACTERISTICS OF A GOOD PLOW 



A good plow should be strong in build and light 

 in weight. 



The draft should be as light as possible. 



The plow should run steadily. 



A good plow should not only turn the soil but 

 should pulverize it as well. 



When plowing, the team should be hitched to the 

 plow with as short traces as possible, and the plow 

 should be so adjusted that it will cut furrows of 

 the required width and thickness with the least pos- 

 sible draft on the team and the least exertion on the 

 part of the plowman. 



