TRRIGATED FIELD CROPS FOR HOG PASTURING. 25 
pigs were transferred to alfalfa pasture. In 1917, when tankage was 
added to barley in the supplementary ration, the results were some- 
what better for the first 84 days, but, during the last 21 days the 
gains were unduly expensive, 500 pounds of supplementary feed 
being reouired for each 100 pounds of gain. The results obtained 
in these tests should not be regarded as conclusively unfavorable to 
sweet clover as hog pasture. Further trials need to be made of the 
crop for this purpose. Pending the making of such trials, sweet 
clover is likely to continue to be considered inferior to alfalfa as a 
forage crop for hogs and to be regarded as valuable chiefly on soils 
where alfalfa does not do well. 
HOGGING OFF CROPS. 
In several swine-producing districts of the country there is a 
erowing practice of turning hogs into fields of corn or other crops 
P99TRP 
Fic. 5.—View of a cornfield on an irrigated farm near the close of the hogging period 
in late autumn. Hogging has proved to be a satisfactory method of utilizing corn 
crops on irrigated lands, as it saves the labor of harvesting and feeding the crop, 
produces gains on the hogs economically, and leaves the manure on the land. 
at about the time the crops are mature and allowing the hogs to do 
the harvesting. This practice is becoming common on irrigated 
farms in connection with corn, and is followed in a limited way with 
other crops. Three important points in favor of hogging off mature 
crops are (1) the saving of labor necessary to harvest and feed the 
crop products, (2) the prompt application of the manure to the 
land, and (3) the healthful and sanitary conditions of feeding. 
During the past six years some data have been secured from 
tests of hogging off certain of these irrigated crops. A summary 
of the results follows. 
