376 CROP GROWING AND CROP FEEDING 



The constituents of fertilizers are printed on the sacks in percentages. 

 Nitrogen is usually put there in the form of ammonia. To find the actual 

 nitrogen in the article multiply the percentage of 



Ammonia by 0.8235 and the result will be the percentage of nitrogen. 

 Nitrogen by 1.214 and it will give the ammonia for that percentage. 

 Nitrate of soda by 0.1647 and the result will be the actual nitrogen. 

 Muriate of potash by 0.632 and the result will be the actual potash. 

 Sulphate of potash by 0.54 and the result will be the actual potash. 



WHAT CROPS REMOVE FROM THE SOIL. 



