GROWING SUGAE BEETS IK COLORADO. 



Table XI. — Spike-tooth harrowing data for three Colorado districts. 



23 





Year. 



Num- 

 ber 

 of 

 farms. 



Acres 

 har- 

 rowed 



per 

 farm. , 



Num- 

 ber 



times 

 har- 

 rowed. 



Crew. 



Hours per acre. 



Total 

 cost 

 per 



acre. 



District. 



Man. 



Horse. 



Man. 



Horse. 



Rocky Ford 



1914-15 



1915 

 1914-15 



109 

 66 

 191 



22.93 

 36.8 

 25.9 



3.52 



3.7 



2.76 



1 

 1 

 1 



3.54 

 3.7 



3.57 



2.74 



2.3 



1.8 



9.7 

 8.4 

 6.17 



SI. 46 





1.36 





1.02 







For all districts nearly all harrowing was done either by one man 

 and four horses or one man and three horses. In the Rocky Ford 

 district 58 per cent of the growers reporting on this operation used a 



■^f^*^ 



Fig. 8. — Harrowing with the spike tooth is one of the common operations in fitting theland for sugar beets. 



1-4 crew. At Fort Morgan the percentage for this crew was 71, 

 while in the Greeley district it was 56. The 1-3 crew was used by 

 37 per cent at Rocky Ford, 30 per cent at Fort Morgan, and 39 per 

 cent at Greeley. There were a few crews smaller and a few larger 

 than these two. The Fort Morgan group did more harrowing than 

 the Rocky Ford group and the average cost per acre was 10 cents 

 lower in the former in 1915 than in the latter in 1914 and 1915. 

 Greeley farmers had the lowest cost per acre for spike-tooth harrowing, 

 but went over the beet land fewer times than did the men of either 

 of the other areas. A day's work with the spike-tooth harrow with 

 an average crew varied from 12.8 to 15 acres. 



