OTHER GRASSES OF SECONDARY IMPORTANCE 217 



irrigation, and this method of culture has long been 

 pursued in northern Italy. 



At the Utah Experiment Station the following results 

 were secured with irrigation : 



255. Hay yields. Italian rye-grass is remarkable 

 for the number of cuttings that can be made in a season 

 and the large total yield under the most favorable con- 

 ditions. No other temperate grass grows so rapidly or 

 recovers so promptly after cutting. Ordinarily but two 

 cuttings can be obtained in a season, the second smaller 

 than the first. With abundant moisture and fertilizer, 

 however, the grass has yielded 5 cuttings at Christiana, 

 Norway; 5 or 6 in Germany; and as many as 7 to 9 in 

 England and Switzerland, in a single season. It is possible 

 that these results might be duplicated west of the Cascade 

 Mountains in Oregon, Washington and British Columbia ; 

 but in the East, Italian rye-grass languishes under mid- 

 summer heat. Warner thinks that the very rapid growth 

 of Italian rye-grass when irrigated with liquid manure is 

 partly due to the fact that it produces numerous fine roots 

 from the lower nodes. The growth is so rapid that a growth 

 of 30 inches has been recorded in three weeks. 



Some of the yields recorded for Italian rye-grass in 

 Europe border on the marvelous. In England on land 

 watered with liquid manure, annual yields of 60 to 120 

 tons of grass, or 12 to 20 tons of hay, to the acre are said 



