118 



COMPARISON OF SALINE MANURES; 



in small quantities, be useful. Pouring a little occ«* 

 sionally upon a compost heap, would be the safest 

 and best mode of trying it. A large dose of this liquid 

 would be fatal to vegetation. 



SECTION III. OF THE EFFECTS OF SALINE MANURES, 

 AND THE BEST MODES OF APPLICATION 



The above are instances of saline manures, the few 

 last given merely as examples of a class. In the fol- 

 lowing table are mentioned a few cases, rec 3rded by 

 Prof. Johnston, of their effect as applied upon vari- 

 ous crops in Scotland : 



TABLE VIII. 



Nitrate of soda, ) 

 1 cwt. per acre. ) 



Nitrate of soda, 

 120 lbs . per acre 



Nitrate of potash, 

 1 cwt. per acre. 



1 cwt. per acre. 



Nit. pot. and nit. 



soda mixed. 



Do. do. 



If cwt. 

 Do. do. do. 



1 cwt. nit. soda. 



ON GRASS LAND. 

 Product per acre. 

 5 tons 4 cwt. 



3 tons i cwt. 



2 tons 3 cwt. 



ON OATS. 



64 bushels. 

 603 bushels. 



ON WHEAT. 



27 bushels. 

 54 bushels. 



Undressed. 

 2 tons 12 cwt. 



2 tons i cwt. 



1 ton 1| cwt. 



48 i bushels. 

 40 bushels. 



18£ bushels, 

 42 bushels. 



These, it will be recollected, are most favorable 

 results, selected to show how great an influence such 

 small quantities of these manures may have. From 

 what has been exmained relative to the proportion of 



