30 



BROADBALK FIELD 



Table 'K^ .—Experiments on Wheat, Broadhalk Field. Manuring of the 

 Plots per acre per annum, 1 852 and since. 



Table XVI. — Experiments on Wheat, Broadhalk Field. Produce of Grain and 

 Htraw per acre. Average over 61 years (1852-1912); and over 10 years (1903- 

 1912) ; also Produce in 1911. 



by Minerals. t Produce by Ammonium-salts. } 20 years (1893-1912). 



