n 



_. . . ^ Yield per acre of dressed barley in bush. 



Description of manures. ^gg^ ^^^^ ^^^^^ ^^^^ ^^^^ ^^g^- ^gg^ ^gg^ 



No manure ...21 33 27;^ 223^ 33 14: 22',; 18X 2014: i6)4 



Mineral manures 22'/^ 33>^ 23 28 32 21 1834^ 22 20 



Mineral manures and 275 



lbs. Nitrate of Soda. .49 53 50'^ 55^ 5734: 50^ 4o>( 43>^ 4S>^ 



The mineral manures consisted of superphosphate and 

 potash. We would recommend drilling in with the barley 

 a mixture of 200 pounds superphosphate and 150 pounds 

 Nitrate of Soda per acre, and if the land is " run down " or 

 sandy, add 50 to 100 pounds muriate of potash to the 

 mixture. 



We recommend the use of the same ^ 



mixture for oats as for barley. 



In 1888 we used 200 pounds superphosphate and 

 150 pounds Nitrate of Soda on 7I/1. acres of oats, and 

 harvested 610 measured bushels. The oats weighed 40 

 pounds per bushel, and we, therefore, got over 100 bushels 

 of 32 pounds per acre. The land was sown to wheat in 

 the fall and seeded down with timothy and clover. The 

 wheat was a heavy crop, and the crop of hay the following 

 year was immense. 



17 



The 200 pounds of ammonia salts contained as much Food for 

 Nitrogen as the 275 pounds Nitrate of Soda, but the Nitrate ^'^"^s 

 produced nearly four bushels more barley per acre. It is 

 evident from the foregoing that barley must have Nitrogen, 

 and that it is more effective in the form of Nitrate than in 

 the form of ammonia. 



In the experiment made by Dr. Voelcker, in behalf of 

 the Royal Agricultural Society of England, at Woburn, the 

 following results were obtained with barley sown year after 

 year on the same land : 



