COBN TILLAGE 173 



that has been baked or run together by heavy rains, or 

 that was imperfectly plowed in the beginning. 



When "scrapes" or similar implements are used, it is custom- 

 ary for the first working to be made with scrapes of the smaller 



Fig. 87. — A One-hoese, Spbing^ooth Harrow, with Fenders. 



sizes, usually 10 to 12 inches in width, gradually increasing the 

 size up to 30 inches or wider. The first tilling of corn can be much 

 more rapidly done if the cultivating implement is supplied with 

 fenders (Fig. 87), which are usually strips of metal attached to the 

 plow beam and trailing along the ground between the implement 



