18 FERTILIZERS IN THE WEST 



has shown that those crops which are richest in starch or 

 sugar, are most benefited by potash fertilization. ... By facili- 

 tating the formation of starch, potash fertilizers produce a 

 grain which is much better nourished, much larger and much 

 heavier. . . . Besides, crops fertilized with potash mature at 

 least a week earlier. . . . Further, the potash fertilizers play a 

 very important part in rendering the crop resistant against the 

 attacks of diseases and insects." 



One of the most important practical results quoted by 

 Professor Farges is, that potash is highly profitable even on 

 soils that are naturally very rich in potash. On a soil contain- 

 ing as much as 1.2 per cent of acid soluble potash marvelous 

 results were gotten by Mr. Isman, professor of Agriculture at 

 Sidi-Bel- Abbes, Algiers, by the use of potash fertilizers. 



As a further proof for the fact that potash fertilizers are 

 highly profitable under dry farming conditions we present 

 below another table showing the results of a few among the 

 100 or more tests carried out in countries as far removed from 

 each other and from this country as New South Wales, North 

 Africa and Peru. It will not be necessary to discuss these 

 results in detail since the table and especially the last column 

 of the same, giving the net profits due to potash, speaks for 

 itself. 



