236 



EXPERIMEXTAL .FARMS 



5, GEORGE v., A. 1915 



The following brief summary records the chief items in the rotations tabled in 

 detail above. 



Cost of Oper.'^tiOiXS, Value of Products, and Profits of Potation " C " '' J," " P " 

 and " E."' 



SOIL CULTURAL EXPERIMENTS. 



DEPTH OF PLOUGHING SUMMER-FALLOW TO BE SOWN TO WHEAT. 



The land in this experiment was ploughed in June for summer-fallow at depths 

 varying from 3 to 8 inches and from 5 to 8 inches with a 4-inch subsoiling. 



No conclusions can be reached from the results of only two years' work along this 

 line, but it might be pointed out that this year the plot ploughed 6 inches deep shows 

 a slight advantage in yield over any of the others. 



Depth of Ploughing Summer-fallow to be Sown to Wheat. 



1 

 2 

 3 



4 

 5 

 6 

 7 

 8 

 9 

 10 



Ploughing 3 inches deep 



Ploughing 4 inches deep 



Ploughing 5 inches deep 



Ploughing 6 inches deep 



Ploughing 7 inches deep 



Ploughing 8 inches deep 



Ploughing 5 inches deep and subsoiling 4 inches. 

 Ploughing 6 inches deep and subsoiling 4 inches. 

 Ploughing 7 inches deep and subsoiling 4 inches. 

 Ploughing S inches deep and sub.soiling 4 inches. 



Yield of wheat 

 per acre, 1913. 



Bush. Lb. 



00 

 40 

 00 

 00 

 40 

 00 

 00 

 00 

 00 

 00 



KEPTH of ploughing wheat stubble TO BE SOWN TO OATS. 



The wheat stubble of 1912. in the above experiment, was ploughed as in tl:e 

 table below for oats. The deep ploughing and subsoiling in preparation for the 

 wheat crop preceding oats, seems to have had a favourable effect on the latter crop 

 as will be noted in the table of results given herewith. 



Indian Head. 



