SWEET POTATOES 
261 
for the crop has been planted in corn and peas the pre¬ 
ceding year it should be plowed deep in the fall, in order 
to bury and hasten the decay of the organic matter pres¬ 
ent. Further plowing will not be necessary until a few 
weeks before the time for setting out the potato “sets” or 
“slips.” Undesirable vegetation may be kept down by 
harrowing the land with a section harrow or disking it 
Fig. 185.—A small field of sweet potatoes well cultivated. 
from time to time. In the extreme southern section of the 
United States where climate and soil permit other truck 
crops may be grown on the land and followed by 
potatoes. 
Varieties of Sweet Potatoes.—Many varieties of 
sweet potatoes are grown in the South and one should 
study the varieties that have been tried and proven suc¬ 
cessful in his locality before selecting a variety to grow. 
The northern market demands a dry mealy potato while 
