118 



COMPARISON OF SALINE MANURES! 



in small quantities, be useful. Pouring a little Occa- 

 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, recorded 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. 



! 



ON eRASS LAND. 



Product per acre. 

 5 tons 4 cwt. 



3 tons I cwt. 



2 tons 3 cwt. 



64 bushels. 



60| bushels. 



ON WHEAT. 



i 27 bushels. 

 1 cWt. hit. soda. 54 bushels. 



If cwt. 

 Do. do. do. 



Undresied. 

 2 t(HM 12 cwt. 



2 tons-i cwt. 



1 ton 1\ cwt. 



48i bushels. 

 40 bushels. 



18i busheki. 

 42 bushels. 



iTiese, it will be recollected, are most favorable 

 results, selected to show bow great an influence such 

 small quantities of these manures may have. From 

 what has been explained relative to the proportion of 



