382 FORAGE PLANTS AND THEIR CULTURE 



three and four cuttings than from two, and still less when 

 the clover was cut five and six times, but the smallest yield 

 of all when cut but once. Weiske secured 3570 kilograms 

 to an hectare when cut twice, and only 3392 kilograms 

 when cut three times. In another experiment in Germany, 

 clover was cut six times and yielded only 4678 pounds to 

 an acre against 9297 pounds when cut but twice. It 

 is probable, therefore, that the total yield of red clover 

 is much less if pastured than if cut for hay. 



450. Yields of hay. The average yield of red clover 

 hay in the United States in 1909 was 1.29 tons to an 

 acre when sown alone and 1.27 tons to an acre mixed 

 with timothy. 



At the Michigan Experiment Station red clover grown 

 continuously for 5 years from 1896 to 1900 averaged 3110 

 pounds hay to an acre. In rotations the yields were 

 higher. During the years 1906-7-8 clover grown con- 

 tinuously averaged 2430 pounds to an acre on one plot and 

 2240 pounds on another; in simple rotation with wheat 

 2520 pounds on one plot and 2457 pounds on another; 

 in a three-year rotation with wheat and corn, 2143 pounds 

 on one plot, 2683 pounds on another. 



At the Rhode Island Experiment Station with very 

 heavy fertilizing red clover produced to an acre 6360 pounds 

 hay in the first cutting and 2760 pounds in the second. 

 At the North Dakota Experiment Station the average 

 hay yield to an acre of the first cutting for 7 years was 3547 

 pounds. At the Ontario Agricultural College the average 

 hay yield to an acre for 6 years of the first cutting was 5900 

 pounds of medium red and 6620 pounds of mammoth. 



451. Relation of green weight to hay weight. Taking 

 the average water content of green clover at 72 per cent 



