CROP ROTATION COMPARED WITH CONTINUOUS CROPPING. 



31 



Table VIII. — Yields of wheat, oats, and corn in bushels per acre and farm value per acre 

 in nineteen tests, 1906-1909, inclusive. 



Rotation No. 3. 



Plat A. Spring wheat on ground plowed early the preceding fall. 

 Plat B. Oats on ground plowed early the preceding fall. 

 Plat C. Corn on ground plowed early the preceding fall. 



Station. 



Year. 



Wheat. 



Oats. 



Corn. 



Corn 

 fodder. 



Aver- 

 age 

 value 

 per acre 



of 

 wheat 

 and 

 oats. 



Judith Basin, Mont . 

 Dickinson, N. Dak. . 



Do 



Edgeley, N. Dak 



Do 



Do 



Highrnore, S. Dak. . . 



Do 



Do 



Bellefourche, S. Dak. 

 North Platte, Nebr. . 



Do 



Do 



Akron, Colo 



Hays, Kans 



Garden City, Kans . . 



Dalhart, Tex 



Amarillo, Tex 



Do 



1909 

 1908 

 1909 

 1907 

 1908 



1907 

 1908 

 1909 

 1907 

 1908 

 1909 

 1909 

 1908 

 1909 

 1909 

 1908 

 1909 



Bushels 

 31.0 

 35.0 

 37.3 

 12.6 

 20.8 

 32.5 

 25.5 

 27.2 

 25.7 

 29.9 

 20.7 

 27.7 

 24.3 

 19.2 

 3.9 

 2.2 

 .0 

 8.5 

 .0 



Average . 



20. 21 



$18. 60 

 21.00 

 22. 38 

 7. 56 

 12. 48 

 19. 50 



15. 30 



16. 32 

 15.42 

 17. 94 

 12. 42 

 16. 62 

 14. 58 

 11.52 



2. 34 

 1.32 



.00 

 5. 10 



.00 



Bushels. 

 61.5 

 38.9 

 62.5 

 30.5 

 16.9 

 66.5 

 47.2 

 45.3 

 29.7 

 53.6 

 30.6 

 60.3 

 18.3 

 18.8 

 20.1 

 .0 

 .0 

 27.5 

 17.8 



12. 30 



34.0 



Bushels 



$18. 45 

 11.67 

 18. 75 



9.15 



5. 07 

 19. 95 

 14. 16 

 13.59 



8. 91 

 16. 08 



9. 18 

 18. 09 



5.49 



5. 64 



6. 03 

 .00 

 .00 



8. 25 

 5. 34 



10. 20 



29.0 

 39.1 

 22.9 

 19.6 

 17.8 

 19.6 

 33.7 

 22.6 

 25.7 

 5.7 



17.6 



$18. 84 



11.31 

 15. 25 

 8. 93 

 7.64 

 6. 94 

 7.64 

 13. 14 

 8. 71 

 10. 02 

 2.22 

 .00 

 .00 

 6. 86 

 .00 



Pounds. 

 8,960 

 2, 510 

 1,940 

 3,150 

 1,900 

 2,750 



3,415 

 4,670 

 3,430 

 2,170 

 4,400 

 5,700 

 2,940 

 1,000 

 3,250 

 1,430 



$18. 53 



16. 33 

 20. 57 



8. 35 

 8. 78 

 19. 72 

 14. 73 

 14. 96 

 12. 16 



17. 01 

 10. 80 

 17. 36 

 10. 04 



8.58 

 4. 19 

 .66 

 .00 

 6. 67 

 2. 67 



11.16 



Table IX. — Yields of oats, wheat, and corn in bushels per acre and farm value per acre 

 in nineteen tests, 1906-1909, inclusive. 



Rotation No. 4. 



Plat A. Oats on corn ground, not plowed but disked. 

 Plat B. Spring wheat on fall-plowed ground. 

 Plat C. Corn on fall-plowed ground. 



Station. 



Year. 



Oats. 



Wheat, 



Corn. 



Corn 

 fodder. 



Aver- 

 age 

 value 

 per acre 



of 

 wheat 

 and 

 oats. 



Judith Basin, Mont | 1909 



Dickinson, N. Dak ! 1908 



Do 1909 



Edgeley, N. Dak 1907 



Do 1908 



Do 1909 



Highrnore, S. Dak ; 1906 



Do 1907 



Do j 1908 



Bellefourche, S. Dak 1909 



North Platte, Nebr ; 1907 



Do 1908 



Do 1909 



Akron, Colo I 1909 



Hays, Kans 1908 



Garden Citv, Kans 1909 



Dalhart, Tex 1909 



Amarillo, Tex 1 1908 



Do 1909 



Average I 



Bushels 

 74.1 

 67.2 

 72.5 

 28.8 

 23.4 

 63.7 

 61.6 

 48.4 

 35.6 

 75.0 

 40.6 

 54.3 

 22.5 

 21.3 

 16.0 

 2.9 



.0 

 22.8 



.0 



$22. 23 

 20.16 

 21.75 

 8. 64 

 7.02 

 19. 11 

 18.48 

 14.52 

 10.68 

 22.50 

 12. 18 

 16.29 

 6. 75 

 6.39 

 4.80 

 .87 

 .00 

 6. 84 

 .00 



Bushels, 

 33.3 

 18.8 

 34.3 

 10.5 

 15.7 

 28.5 

 25.0 

 29.0 

 21.8 

 29.7 

 24.2 

 31.3 

 16.8 

 10.6 

 6.7 

 .9 

 .0 

 13.2 

 .0 



38.46 11.54 18.44 11 



$19. 98 

 11.28 

 20.58 

 6. 30 

 9.42 

 17. 10 

 15. 00 

 17.40 

 13. 08 

 17. 82 

 14.52 

 18.78 

 10. 08 

 6. 36 

 4. 02 

 .54 

 .00 

 7.92 

 .00 



Bushels 



$19. 07 



32.1 



12 



52 



36.1 



14 



08 



22.6 



8 



81 



8.4 



3 



27 



19.8 



7 



72 



17.7 



6 



90 



30.0 



11 



70 



29.6 



11 



54 



23.1 



9 



01 



5.4 



2 



11 



Pounds 

 7,040 

 2,330 

 2, 000 

 2,850 

 1,750 

 2,950 



17.6 



6. 86 



3,215 

 4,570 

 3,670 

 2,730 

 2,340 

 5, 160 

 2,440 

 850 

 3,280 

 1,510 



$21. 11 

 15.72 

 21.17 

 7.47 

 8. 22 

 18. 10 



16. 74 

 15. 96 

 11.88 

 20. 16 

 13. 35 



17. 54 

 8. 41 

 6. 38 

 4.41 



.70 

 .00 

 7. 38 

 .00 



11.30 



52345°— Bui. 187—10 3 



