12 



BULLETIN 943, U. S. DEPARTMENT OF AGRICULTURE. 



In Grand Forks County, N. Dak., and in Clay and Traverse Coun- 

 ties, Minn., a period of moist, hot weather occurred just prior to 

 harvest time, resulting in wheat rust, which reduced wheat yields 

 appreciably in these counties. 



It will be noted (Table V) that the largest number of farms in the 

 spring-wheat districts are included in the group having a yield of 

 from 5 to 10 bushels per acre, while the largest number in the winter 

 wheat districts come within the group having a yield of from 15 to 

 20 bushels. 



The average 1919 yield per acre for the farms included in this study 

 was determined by dividing the total production by the total harvested 

 acreage. The costs presented in this bulletin are based on the actual 

 yields obtained on these farms. 



Table V. — Annual yields, spring and winter wheat. 





10-year 

 State 

 aver- 

 age. 



9 or 10 

 year 

 county 

 aver- 

 age. 



Aver- 

 age for 

 farms 

 visited, 



1919. 



Range in yield per acre. 



Region. 



Under 

 5 bush. 



5 to 10 

 bush. 



10 to 15 

 bush. 



15 to 20 

 bush. 



20 to 25 

 bush. 



25 bush, 

 and 

 over. 



SPRING WHEAT. 



10.6 







No. of 

 farms. 



No. of 

 farms. 



No. of 

 farms. 



No. of 

 farms. 



No. of 

 farms. 



No of 

 farms. 





12.9 

 9.2 



9 8 

 4.4 



1 



25 



16 

 14 



20 



2 

















11.3 













10.8 



9.9 





24 



13 



2 









14.1 









13.5 

 11.8 



8.1 

 8.4 



2 

 1 



26 

 32 



9 

 9 



1 

































29 

 15 



112 

 57 



51 

 26 



5 

 2 































WINTER WHEAT. 



13.8 





















12.6 

 12.9 

 14.7 



13.3 

 13.9 

 12.7 



3 

 1 



7 



4 

 8 



6 

 16 

 17 



10 

 10 

 10 



6 

 1 



















14.3 









15.7 

 15.8 

 15.2 



16.3 

 19.2 

 19.6 





3 



7 



12 

 17 

 12 



7 

 12 

 22 









1 











2 



2 





16.0 











14.1 



21.1 

 19.5 



10.8 

 18.1 

 IS. 1 





15 



13 



6 

 2 



2 

 17 

 11 











12 

 5 











2 



3 

















4 

 1 



39 



14 



69 



24 



101 

 36 



65 

 23 



6 











2 













REQUIREMENTS OF PRODUCTION. 



In arriving at the cost of wheat production the following elements 

 of cost have been considered : 



Labor, which includes (1) all direct man and horse farm labor, and 

 (2) contract labor, including such items as marketing wheat at a fixed 

 charge per bushel and various labor operations in growing the wheat 

 crop, where done at a contract rate per acre. 



Materials, including seed wheat (with cost of treating seed); .barn- 

 yard manure and straw, fertilizer and twine. 



