14 



RESULTS OF EXPERIMENTS AT ROTHAMSTED, 



TABLE VI. 



BEANS. 



Grown year after year on the same land, Geescroft Field, Rothamsted. 

 Results, without Manure, with Mineral Manure, and with Mineral and Nitrogenous 



Manure. 

 Produce per acre, each year, in Ibs. 



Average per acre per annum, over each period of 8 years, and the total period of 



32 years. 



Average per acre per annum, over the years of crop only, each period. 



(1) 5 years, 1847-1851, 46 Ibs. Nitrogen as Ammonium Salts ; 11 years, 1862, 1864-1870, 1875, 

 1876, and 1878, 86 Ibs. Nitrogen as Sodium Nitrate. (2) Accidentally not weighed. (3) Wheat. 

 (4) 7 years, excluding 1849. (5) 31 year's, excluding 1849. (6) 7 crops, excluding 1849. (7) 

 25 crops, excluding 1849. 



