162 FOOD FOR PLANTS 



Nitrogen 28.6 per cent. 



Phosphoric Acid 9.9 per cent. 



Potash 25.5 per cent. 



Translated into commercial fertilizer terms, the 

 comparison is as follows : 



What the 

 What Average 



Nature Brand 



Requires Supplies 



Nitrogen 2.86 2.00 



Phosphoric Acid 0.99 8.00 



Potash 2.55 2.00 



INCREASED CROP YIELDS DUE TO THE USE 

 OF 100 POUNDS OF NITRATE OF SODA. 



Points for Consideration as to Relation of Prices of 

 Farm Products to Nitrate of Soda Prices. 



From the farmer's point of view, when a reduction 

 in the price of cotton and produce happens, it is to be 

 deplored, but in such a case it should be considered 

 whether abstention from the use of Nitrate is a wise 

 way of meeting the situation. The utility of a fertil- 

 izer obviously depends upon its productivity, which 

 is not affected by its price, and an increase in the 

 latter justifies abandonment of the fertilizer only 

 when its productivity ceases to be profitable. The 

 profit to be reasonably expected from the use of 

 Nitrate of Soda is not so materially interfered with 

 by any ordinary rise in its price as to economically 

 justify any substantial reduction in its consumption. 



Agricultural authorities have established by care- 

 ful experimentation that 100 pounds of Nitrate of 



