33 



lieavy. Their experiments seem also to indicate this where they used 

 80 Ib. of superphosphate and 40 Ib. nitrate of soda, and the crop was 

 13 J bushels less than where 60 Ib. of sulphate or muriate of potash 

 iKras also given, and the potash ripened the crop earlier. Mr. R. W. 

 E. Maclvor, in his "Chemistry of Agriculture," says also that 45 

 bushels of oats are likely to impoverish the land by about 193 Ib. 

 of mineral substances, amongst which are 18.9 Ib. of phosphoric 

 acid, 94.1 Ib. of silica, 11.8 Ib. of lime, 38.1 Ib. of potash, and as the 

 straw contains 139.4 Ib. of the mineral substances, the grain only 

 53.6 Ib., the straw should be returned or burnt on the land, an advice 

 not likely to be adopted. 



The average from forty-eight farms in British Columbia was 63 

 bushels per acre, and James Gilmore took his oath that his crop of 

 32 acres of oats averaged 154 bushels per acre, but the report gives 

 no particulars as to manuring. 



From France I can give a number of experiments. M. Dumonte, 

 of Croisseroux, had, with 480 Ib. of Thomjas phosphate, 13 

 bushels 35 Ib. more than without any manure ; with 80 Ib. of nitrate 

 of soda added to the 480 Ib. Thomas phosphate, 24 bushels more ; 

 and with the furtEer addition of 160 Ib. of muriate of potash, 48 A 

 bushels more of oats per acre. As the unmanured plot gave 31 

 bushels the land was in fairly fertile state. M. Lecuyer, of Plomelin, 

 had 1,392 Ib. of oats, without manure, per acre; with 480 Ib. of 

 Thomas phosphate, 1,856 Ib. ; with 480 Ib. of Thomas phosphate and 

 168 Ib. of muriate of potash, 1,992 Ib. ; with the further addition 

 of 30 Ib. of nitrate of soda, 2,320 Ib. The land was in still better 

 heart. M. Magnieu, of Oisilly, reaped, without manure, 1,296 Ib. of 

 oats per acre, and manured with 320 Ib. of Thomas phosphate 1,760 

 Ib. 



BARLEY. 



It consumes within a few weieks after appearance above the 

 ground quite one-half of the plant food it requires, and it should 

 therefore be applied early. Professor Dr. Wagner says in vol. 

 100 of the Th,aer Library that barley will at first grow very 

 luxuriant if manured with superphosphate. The nitrogen is thus 

 quickly consumed, the crops stop growing, the leaves get yellowish, 

 and the grain thin and ripe before the proper time. He demands 

 "full manuring" for barley. The average of five fields of barley 

 increased over partially manured land from 1,520 Ib. to 2,160 Ib. 

 per acre. Last year a very successful experiment was made by 

 H. Mueller, of Unterliederbach. He had an unmanured plot, an- 

 other manured per half acre with 2 cwt. of superphosphate, H cwt. 

 kainit of 40 per cent., equal to about 120 Ib. of muriate of potash 

 and | cwt. of nitrate of soda, and a third plot with 4 J cwt. of 

 Thomas phosphate, and the same quantity of potash and nitrate as 

 on the second plot. The cost was equal for superphosphate and 

 Thomas phosphate, the profits on grain and straw were 2/0/10 per 

 acre from plot 2, and 5/1/4 from plot 3. The unmanured crop 



