We should recommend for tobacco a mixture of 200 Pood for 



pounds Nitrate of Soda, 300 pounds superphosphate and ^"^^ 



150 pounds sulphate of potash per acre. This mixture ^^ 



would cost about $iS.oo per ton and would contain over 



6 per cent of Nitrogen (equal to nearly eight per cent of 



ammonia). This is nearly twice as much Nitrogen as would 



be obtained in a "complete fertilizer " or " special tobacco 



manure," costing 535.00 per ton. 



There are numerous cases where Nitrate ^T.^ ^ c c ^ 

 r c- J , , • 1 J Nitrate of Soda 



01 Soda can be used with very great advan- r p 



tage and profit as a top dressing tor grass. 



Milkmen, who sell milk in our cities, know the great 



inconvenience and loss arising from a failure of pasture or 



green fodder from drouth. 



Farmers who raise earlv lambs for the . j 



11 n ,1- 1 • . 1- 1 Advantages, 



butcher can well attord to spend a little r ,. ,, 



r -VT- r o J • r • -n • Indirect as well 



rrtonev lor Nitrate or Soda it it will give »>,. 



, • J , . ~ , . o , as Direct, 

 them a good bite ot grass early in the 



season for the ewes and lambs, and that it will certainlv do. 

 In the United States such seasons as that of 1870 in 

 England are the rule rather than the exception, and the 

 following results trom the use of Nitrate of Soda on per- 

 manent meadow at Rothamsted, in the drv season of 1870, 

 are of great interest : 



Hav per acre. 



1 . No fertilizer. 644 lbs. 



2. 300 lbs. sulphate potash, 100 lbs. sulphate soda, 100 lbs. 



sulphate magnesia, ^ ^^ cwt. superphosphate of lime 1,968 " 



^. Same mineral manures as plot 2 and 400 lbs. ammonia salts . . 3,306 " 

 4. Same mineral manures as plot 2 and 550 lbs. Nitrate of Soda 6,^00 " 



It will be seen that 550 pounds of Nitrate of Soda give 

 an increase over plot 2 0^4,332 pounds of hay. 



The same amount of Nitrogen^ but in the form of ammo- 

 nia salts, with an equal amount of minerals, on plot 3, 

 produced about 3,000 pounds less hay per acre than when 

 Nitrogen was applied as Nitrate of Soda. 



In a letter written March 17th, 1890, Sir John B. Lawes 

 says : 



" At equal prices for Nitrogen I certainly prefer Nitrate of Soda to salts 

 of ammonia. The superiority on pasture grasses is more decided, and in dry 

 seasons when the grass upon the ammonia plots is quite burned up there is 

 always plenty of grass where the Nitrate is used. We had a great drouth 



