488 FORAGE PLANTS AND THEIR CULTURE 



lack of inoculation, but primarily because they cannot 

 well endure the hot summer weather in the eastern United 

 States. 



Lupines have grown well in California when planted 

 in the fall, and fair results have been obtained in Michigan, 

 Massachusetts, Kentucky and Virginia when planted in 

 the spring. At the California Foothill Station white 

 lupines sown at the rate of 100, 150 and 200 pounds to 

 an acre gave green yields of 1739, 2193 and 3819 pounds 

 to an acre respectively. Ninety-five pounds of seed to 

 an acre drilled gave a green yield of 3348 pounds to 

 an acre, as compared to 3819 pounds obtained by broad- 

 casting at the rate of 200 pounds to an acre. A sowing 

 made October 22 yielded 4846 pounds of green herbage 

 to an acre, much more than that from earlier and later 

 seedings. 



These yields are small compared with those secured in 

 Europe. The average yield in Germany is given as 3600 

 pounds hay to an acre. Maximum yields in favorable 

 seasons may reach 9000 pounds to an acre. 



596. Serradella (Ornithopus sativus) is an annual legume 

 native to the Spanish Peninsula and Morocco. It is cul- 

 tivated for forage and green manure in Portugal, Spain, 

 France, and Germany, in the last country beginning with 

 1842. In America it has thus far found no place. It has 

 been tested in a small way at most of the experiment 

 stations, but only at one has it been deemed worthy of 

 recommendation. At the Massachusetts Experiment 

 Station it yielded 10 to 12 tons green weight to an acre, 

 containing 19 to 20 per cent water. It was there consid- 

 ered better than oats and vetch or cowpeas, and nearly 

 as good as soybeans. At Guelph, Ontario, the yield of 

 green forage was only 4.7 tons to an acre. 



