REQUIREMENTS OP FIELD CROPS. 



43 



HOURS 



JAN 



10 20 



FEB. 

 10 20 



MAR. 

 10 20 



APR. 



10 20 



MAY 



10 20 



JUN. 



1020 



JUL. 

 10 20 



AUG. 



10 20 



SEPT. 



10 20 



OCT. 



10 20 



NOV. 



1020 



DEC. 



10 20 



HOURS 



11 



10 



9 

 8 

 7 

 6 

 5 

 4 

 3 

 2 



1 

 



HOURS 

 11 

 10 

 9 

 8 

 7 



6 

 5 

 4 

 3 

 2 

 1 

 









































































11 

 10 



9 



8 



7 



6 



5 



4 



3 



2 



1 



O 



HOURS 



11 



10 

 9 



8 



7 

 6 

 5 

 4 

 3 



2 



1 



O 









MAN LABOR 









































ALFALFA 







































































BASED ON COST ACCOUNTING DATA 



FROM 



SOUTHERN WISCONSIN 

































































































































































































































































































































II 





































































■^ 









































































"■ 



■ 







■■ 

























































■ 



■ -iy 



































40.5 | 28.3 | 16.5 | 144 



.3 







PERCENTAGE DISTRIBUTION 













349 



30 4 



17.7 



16.4 



.6 





















































































HORSE LABOR 





























































































































































































































































































































































































































































































































1 





































































J_ 

































































II ■" 



IT 





















































II 



■ 























10 20 



JAN. 



10 20 



FEB. 



10 20 



MAR. 



10 20 



APR. 



10 20 



MAY 



10 20 



JUN. 



10 20 



JUL. 



10 20 



AUG. 



10 20 

 SEPT. 



10 20 



OCT. 



10 20 



NOV. 



10 20 



DEC. 



Fig. 13.— Distribution of man labor and horse labor for 20 farms, representing the production of 128 acres 

 of alfalfa. The reports show that the first and second crops may overlap during the period July 10 

 to 20. Black bars indicate total hours spent per acre during 10-day periods. " 



