34 BULLETIN 48, HAWAII AGRICULTURAL EXPERIMENT STATION. 
Jerusalem artichokes are greatly relished by swine. From 250 to 
500 pounds per acre should be planted in rows 30 to 60 inches apart. 
The crop may be planted in February, May, October, and November. 
NONLEGUMINOUS AND NONROOT CROPS. 
Both the nonleguminous and the nonroot crops, including corn, 
grain sorghums, Uba cane, elephant grass, and Bermuda and Hilo 
grass pasturage, are rich in carbohydrate and inclined to be fibrous. 
Probably all with the exception of corn in mature grain may be 
classed as coarse roughage. They can be planted in February, April, 
October, and November. 
Corn 7 is probably the most efficient of the fattening grains for 
swine. From 7 to 10 pounds per acre of the seed should be planted 
in rows 42 to 60 inches apart. 
Grain sorghums, while inferior to corn, make an excellent grain 
feed for swine. From 5 to 8 pounds of the seed per acre should be 
sown in rows 42 to 60 inches apart. 
Uba cane is an excellent nonleguminous forage for swine and is 
well liked by them. From 8,000 to 12,000 cuttings per acre should 
be planted in rows 42 to 60 inches apart. 
Elephant grass is not as palatable for swine as is saccharine sor- 
ghum. From 8,000 to 12,000 cuttings per acre should be planted 
in rows 42 to 60 inches apart. 
Bermuda and Hilo grass pasturage is excellent for swine to root 
in. It is a perennial and the sod or coarse clippings should be 
plowed under. 
MISCELLANEOUS. 
Among the miscellaneous hog feeds may be included algaroba pods, 
cactus fruits, and pineapple fruits. 
Algaroba pods are excellent as a hog feed if not fed in abundance. 
For best results, they should be ground unless they are pastured. 
Select seedlings of heavy podding strains should be planted 20 by 20 
feet with not more than 100 trees to the acre. 
Cactus fruit, when pastured, is excellent as a hog feed. 
Pineapple fruit, if very acid, should not be fed in excess to swine. 
SYSTEMATIC ROTATION. 
It has been conclusively demonstrated that grass crops should 
follow leguminous crops, and that all broadcasted and nonroot crops 
should follow cultivated and root crops. Under the cropping and 
feeding systems practiced at the Haiku substation, worn-out pine- 
apple lands of low fertility, when hogged off, were brought up to 
a state of comparatively high fertility within three years. On the 
other hand, lands from which the crops had been removed and on 
which the hogs had not been allowed to run showed a decided tend- 
ency to soil depletion. 
7 Considerable corn on the ear has been fed to swine in Hawaii in the past. The small 
farmer in the Kula region of Maui invariably feeds corn to hogs wiien the price of corn 
drops below its feeding value, or when the price of pork reaches exceptionally high 
levels. High transportation charges on this crop have induced many of the farmers to 
feed it to swine, and this practice is likely to continue if hogs maintain their present 
high price. 
