202 CORN CROPS 



the soil is in poor physical condition and needs pulver- 

 izing. 



Two-rowed cultivators adapted for use with either two 

 or three horses are now in general use. If two-row cul- 

 tivators are to be used, the rows should be straight and 

 uniformly equal distances apart. With the two-row 

 cultivator it is not possible to do as careful work close to 



Fig. 69. — Late cultivation of corn, with narrow tooth plow. 



the row as when a single row is worked at a time. On 

 the other hand, when the corn is clean in the row it may 

 do all that is necessary in half the time. 



One horse cultivators are not used m^ach in corn cultiva- 

 tion, except occasionally for late cultivation where the 

 plants are too high to straddle. 



For listed corn a variety of tools has been specially 

 devised. A spike tooth harrow is often used to level the 

 ridges shghtly when the corn first comes up. Then a 

 tool- such as illustrated in Fig. 70 is sometimes used or, 

 more commonly, a two-row tool of the type illustrated in 

 Fig 71. The first time over, the disk followers are usually 



