18 Farmers' Bulletin ÍÍ26.

Mixtures of Sudan grass with cowpeas or soy beans can be grown for silage in humid regions. Such mixture makes a bright-colored, palatable silage of high feeding value.

PASTURE. Sudan grass is rapidly gaining popularity as a summer pasture crop. In regions of low rainfall and high temperatures, its carrying capacity during the hot summer months is superior to that of any other grass or legume. On the experimental farm at Dodge City, K.ins., in the summer of 1911 a herd of milk cows was pastured alternately on Sudan grass and on native grasses. The Sudan grass furnished abundant pasturage at the rate of one cow per acre for 125 days and the cows made a daily average of 3.8 pounds more milk per cow on the Sudan grass than on the native grasses.

In 1915, at Chillicothe, Tex., mules, horses, and cows allowed the run of a field containing equal areas of Amber sorgo. Golden millet, an«! Sudan grass all showed a decided preference for the Sudan grass. At the Arizona experiment farm near Prescott, Ariz., Sudan grass without irrigation maintained 20 sheep per acre continuously for 100 days. The sheep pastured on Sudan grass fattened, while those grazing Amber sorgo made only ordinary growth. The California experiment station pastured a nonirrigated field of Sudan grass with sheep at the rate of 22 head per acre. The sheep made gains of onethird of a pound a day while on the pasture, and no injurious effects were noted.

Sudan grass is also one of the best pasture grasses for irrigated lands in the Southwest. On the Yuma experiment farm at Bard, Calif., a siuall area of about 8 acres was pastured for six months in 1 !) 15 with milk cows and work horses (fig. 9). The field was divided in halves and each half pastured alternately in periods of 2 to 3 weeks. The grass was irrigated in each case as soon as the animals were removed. The field maintained an average of three head per acre in good condition throughout the entire period.

Besides these more or less definite tests by experiment stations, numerous farmers have reported excellent results with Sudan grass pasture. Hogs relish the grass and when they have access to Sudan grass pasture, good gains can be produced with one-half the customary grain ration.

Sudan grass, like Johnson grass, is less likely to contain dangeroxis amounts of prussic acid than the larger sorghums. Only throe authentic cases of poisoning by Sudan grass have been called to the attention of the United States Department of Agriculture. The most serious of these occurred on a farm in Kansas where for two years Sudan grass had been pastured without trouble. The third year, after a crop badly injured by drought had been cut for hay, 40 cows were turned into the field to pasture the aftermath. In three hours