90 FARM AND SCHOOL PROBLEMS. 



Per Cent 



Name. digestible 



protein. 



Alfalfa 11.0 



Cotton seed meal 37.2 



Wheat bran 12.2 



Red Clover hay 6.8 



Timothy hay 2.8 



9. According to a report of the Nebraska Experiment Station, in 

 1911, an average of reports for two years shows that it costs 29.6 cents 

 per bushel to produce corn; 54.9 cents per bushel to produce wheat; 32.5 

 cents per bushel to produce oats; $5.87 a ton to produce wild hay; $4.18 

 a ton to produce clover; and $3.10 per ton to produce alfalfa hay; which is 

 the most profitable crop at present market prices if the yield is as follows : 



Corn 25 .8 bushels per acre 



Wheat 17.03 bushels per acre 



Oats 26.41 bushels per acre 



Wild Hay . 97 tons per acre 



Clover 1.5 tons per acre 



Alfalfa 3 . 04 tons per acre 



10. The following table shows the 



ACREAGE, VALUE, AND YIELD OF WISCONSIN HAY CROP (1910). 



Alfalfa Timothy Clover Timothy 



Alone Alone and Clover 



Acreage 18,000 767,000 119,500 1,600,000 



Value per acre $31.00 $14.00 $14.00 $14.00 



Ave. yield per acre.. 2.8 T. 1.4 T. 1.7 T. 1.6 T. 



Allowing $10 for rent of land and for labor in the procluc- 

 .tion of clover and timothy and $15 per acre for the production 

 of alfalfa, how many times greater was the net profit on alfalfa 

 per acre than that of clover or timothy? 



Soy Beans. 



The soy bean is a legume and is therefore a nitrogen gather- 

 ing plant. 



It is an annual plant. It is well branched and bushy, growing 

 'from 20 to 50 inches in height. 



It is a native of China and Japan, where it has been grown 

 for centuries. It is used in those countries for human food. 



