AGDELL FIELD 



Unmanured 



Minerals only, 

 no Nitrogen. 



Complete Manure 



Fig. 1. — Effect of Manure upon Crops grown in Rotation. Total Produce. Averages 

 of Five Courses (1884-1903). Swedes in 100 cwt. ; Barley and Wheat in 1000 lb. ; 

 and Clover in 10 cwt. 



Table III. — Cro2'>s groivn in rotation, Agdell Field. Effect of the largest Clover or 

 Bean Croj^ on the Jolloiving Wheat Croj). Total ^woduce jier acre. 



Table IV. — Crops grown in rotation, Agdell Field. Effect of Clover or 

 following Wheat Crops. Total prodi«:e p>er acre. 



on the 



* 6 years (1874, 1882, 1SS6, 1894, and 1902). 

 t 6 years (1875, 1883, 1887, 1895, and 1903). 



t 8 years (1854, 1858, 1862, 1866, 1870, 1878, 1800, and 1898). 

 § 8 years (1865, iS59, 1863, 1867, 1871, 1879. 1891, and 1899). 



