67 



HADLEY. 



•SOIL TEST WITH FERTILIZERS FOR POTATOES, 



by L. W. West. 



Average of the nothing plots : large, 79.9 bushels ; small, 15.6 bushels per acre. 



The land used in this experiment was newly broken sod, similar to 

 that employed in the soil tests with fertilizers on the same farm in 

 1889 and 1890. The soil is of alluvial origin, a moderately heavy 

 loam, with a clay sub-soil. The yield of the different nothing plots 

 shows it to have been of tolerably even quality throughout the field, 

 although best in the vicinity of the plots occupied by " complete " 

 fertilizer, barn-yard manure, lime and plaster. Since the increase 

 on these plots is obtained by comparison with the two nearest noth- 

 ings in each case, it is not thought that this leads to any unfairness 

 in the deductions made from the results. 



The potatoes (Beauty of Hebron) were planted April 13th and dug 

 Sept. 9th. The experiment was well conducted throughout, although 

 unavoidable causes led to planting plots ten to fifteen inclusive, 

 three or four days later than the others. The superiority of the plots 

 which had received potash was evident from an early stage in the 

 growth of the crop. 



