

ROTATION OF CROPS. 



239 



TABLE 64. — Experiments on the Kotation of — Roots, Barley, Clover (or 

 Beans), or Fallow, and Wheat ; in Agdell Field, Rothamsted. 8 courses, 

 32 years, 1852-1883. 



AVERAGE AMOUNTS OF POTASH PER ACRE PER ANNUM IN THE ROTATION CROPS, 

 COMPARED WITH THOSE IN THE CROPS GROWN CONTINUOUSLY. 



BARLEY. 



( Rotation . 

 Grain ■ Continuous 



v Rotn. +or - cont 



{ Rotation . 

 Straw -] Continuous 



V. Rotn. + or -cont 



( Rotation . . 

 Total -\ Continuous . 



\ Rotn. +or- cont 



8.13 

 5.03 



10.83 

 6.45 



18.96 

 11.48 



7.48 



11.81 

 6.45 



20.19 

 11.48 



8.71 



7.97 

 5.03 



10.52 

 6.45 



4.07 



18.49 

 11.48 



7.01 



7.15 

 5.03 



2.12 

 10.09 

 6.45 



17.242 

 11.48 



8.09 

 6.59 



9.32 

 7.03 



17.41 

 13.62 



7.85 

 6.59 



9.50 

 7.03 



17.35 

 13.62 



3.73 



10.23 

 6.59 



12.10 

 7.03 



22.33 

 13.62 



8.71 



10.65 

 6.59 



12.54 

 7.03 



23.19 

 13.62 



9.57 



12.33 

 14.32 

 -1.99 



18.41 

 21.00 



30.74 

 35.32 



12.52 

 14.32 



18.97 

 21.00 



31.49 

 35.32 



14.14 14.04 

 14.32 ! 14.32 



BEANS (6 COURSES), CLOVER (2 COURSES), OR FALLOW. 



Corn 



( Rotation . 

 ■J Continuous 

 \ Rotn. +or- 

 C Rotation 



cont. 



Straw -j Continuous . 



( Rotn. +or- cont 



( Rotation . 

 Total -J Continuous 



I Rotn. +or- cont 



Clover i Rotation • 

 wover - ( Continuous 



Average of 8 courses, i 

 beans and clover / 



7.26 

 2.98 



2.87 

 1.54 



10.13 

 4.52 



34.18 

 ? 



16.14 



7.23 

 2.98 



2.87 

 1.54 



10.10 

 4.52 



29. 67^ 



7.35 

 3.46 



3.47 

 1.82 



10.82 

 5.28 



57.63 

 ? 



22.52 



8.79 

 3.46 



4.01 

 1.82 



12.80 

 5.28 



15.20 

 8.94 



2.63 

 22.16 

 13.27 



123.12 

 ? 



47.40 



17.25 

 8.94 



7.21 

 4.33 



24.46 

 13.27 



132.62 

 ? 



51.50 



WHEAT. 



( Rotation . . . 



Grain - Continuous . . 



\ Rotn. -for - cont. 



( Rotation . . . 

 Straw -f Continuous . . 

 v Rotn. -for -cont. 

 ( dotation . . . 

 -[ Continuous . . 

 v Rotn. +or- cont. 



Total 



8.65 8.08 

 4.45 4.45 



4.20 3.63 



19.12 j 17.94 

 8.49 I 8.49 



10.63 9.45 



27.77 

 12.94 



26.02 

 12.94 



14.83 13.08 



8.42 

 4.45 



18.30 

 8.49 



7.26 

 4.45 



16.31 

 8.49 



23.572 

 12.94 



9.55 

 5.27 



20.25 

 10.00 



29.80 

 15.27 



19.14 

 10.00 



28.53 

 15.27 



20.45 

 10.00 



30.14 

 15.27 



10.06 

 5.27 



20.21 

 10.00 



30.27 

 15.27 



9.90 

 8.12 



25.85 

 18.S1 



35.75 

 26.93 



10.82 

 8.12 



2.70 



27.47 

 18.81 



38.29 

 26.93 



8.83 10.97 



1 Calculated on average produce of 19 years, 1849-52 and 1856-70. 2 Probably crop too low owing to a dell. 



