CROP ROTATION COMPARED WITH CONTINUOUS CROPPING. 



39 



Table XIX. — Yield of barley, in bushels per acre, in two 3-year rotations compared ivith 



continuous cropping. 



Station. 



Judith Basin, Mont. . 

 Dickinson, N. Dak. . 



Do 



Edgeley, N. Dak 



Do 



Do 



Highmore, S. Dak... 

 "Do 



Do 



Bellefourche, S. Dak. 

 North Platte, Nebr.. 



Do 



Do 



Akron, Colo 



Hays, Kans 



Garden Citv, Kans. . 



Dalhart, Tex 



Amarillo, Tex 



Do 



Average. 



Year. 



1909 

 1908 

 1909 

 1907 

 1908 

 1909 

 1906 

 1907 

 1908 

 1909 

 1907 

 1908 

 1909 

 1909 

 1908 

 1909 

 1909 

 1908 

 1909 



No. 6. 



Barley 

 disked, 

 oats fall 

 plowed, 

 corn fall 

 plowed. 



Bushels. 

 42.7 

 45.6 

 53.8 

 18.3 

 31.9 

 33.1 

 37.7 

 25.0 

 30.0 

 47. 1 

 30.6 

 24.9 

 21.5 

 24.9 

 12.3 



5.1 

 .0 



7.5 

 .0 



No. 7. 

 Corn 



spring 

 plowed, 



barley 



spring 

 plowed, 

 corn 



spring 

 plowed. 



25.9 



Bushels. 

 39.1 

 34.4 

 49.2 

 10.6 

 26.0 

 32.7 

 29.2 

 28.3 

 29.9 

 28.1 

 40.2 

 22.3 

 18.5 

 22.2 

 9.2 

 5.7 

 .0 

 8.1 

 .0 



22. 83 



yield 



Bushels. 

 40.9 

 40.0 

 51.5 

 14.5 

 28.9 

 32.9 

 33.5 

 26.6 

 29.9 

 37.6 

 35.4 

 23.6 

 20.0 

 23.6 

 10.8 



5.4 

 .0 



7.8 

 .0 



Yield 

 from con- 

 tinuous 

 cropping. 



Bushels. 

 45.2 

 33.5 

 39.8 

 10.2 

 25.0 

 27.0 



30.2 

 29.8 

 23.8 

 39.0 

 19.6 



19.7 

 5.8 

 2.4 



.0 

 7.9 



.0 



24.4 



21.1 



Average of all 

 rotations com- 

 pared with 

 continuous 

 cropping. 



Gain. 



Bushels. 



6.5 

 11.7 

 4.3 



.1 



13.8 



4,0 



3.9 

 5.0 

 3.0 

 .0 



3.0 



Table XX. — Farm value of barley, in dollars and cents per acre, in two 3-year rotations 

 compared with continuous cropping. 



Station. 



Judith Basin, Mont. . 

 Dickinson, N. Dak.. 



Do 



Edgeley, N. Dak 



Do 



Do 



Highmore, S. Dak. . . 



Do 



Do 



Bellefourche, S. Dak. 

 North Platte, Nebr.. 



Do 



Do 



Akron, Colo 



Hays, Kans 



Garden City, Kans.. 



Delhart, Tex 



Amarillo, Tex 



Do 



Average . 



Year. 



1909 

 1908 

 1909 

 1907 

 1908 

 1909 

 1906 

 1907 

 1908 

 1909 

 1907 

 1908 

 1909 

 1909 

 1908 

 1909 

 1909 

 1908 

 1909 



No. 6. 



Barley 

 disked, 

 oats fall 

 plowed , 

 corn fall 

 plowed. 



S16. 23 

 17. 33 

 20.44 

 6.95 

 12. 12 

 12. 58 

 14. 33 

 9.50 

 11.40 

 17.90 

 11.63 

 9. 46 

 8. 17 

 9.46 

 4.67 

 1.94 

 .00 

 2. 85 

 .00 



9. 84 



No. 7. 



Oats 

 spring 

 plowed, 

 barley 

 spring 

 plowed, 

 corn 

 spring 

 plowed. 



§14.86 

 13. 07 

 18. 70 

 4.03 

 9. 88 

 12. 43 

 11.10 

 10. 75 

 11.36 

 10.68 

 15. 28 

 8. 47 

 7.03 

 8.44 

 3.50 

 2. 17 

 .00 

 3.08 

 .00 



8. 67 



Average 

 yield. 



$15. 54 

 15. 20 

 19. 57 

 5. 49 

 11.00 

 12. 51 

 12. 71 

 10.13 

 11.38 

 14. 29 

 13.45 

 8. 97 

 7.60 

 8.95 

 4. 08" 

 2. 06 

 .00 

 2. 96 

 .00 



Value 

 of con- 

 tinuous 

 cropping. 



$17. 17 

 12. 73 

 15. 12 

 3.88 

 9. 50 

 10. 26 



9.26 



11.47 

 11.32 



9.04 

 14.82 



7. 44 



2. 20 

 .91 

 .00 



3.00 

 .00 



8. 02 



Average of all 

 rotations com- 

 pared with 

 continuous 

 cropping. 



Gain. 



$2. 47 

 4. 45 

 1.61 

 1.50 

 2. 25 



.06 

 5. 25 



1.53 



1.47 

 1.88 

 1.15 

 .00 



. 00 



1.13 



187 



