CHAPTER V 



SOIL FERTILITY, Continued 



Commercial Fertilizers 



Use and misuse of fertilizers. 

 Nitrogenous fertilizers. 



Nitrate of soda. 



Sulfate of ammonia. 



Dried blood. 



Tankage. 



Fish-scrap. 



Hoof-and-horn meals. 



Cottonseed meal. 



Linseed meal. 



Fertilizers from the atmosphere. 

 Phosphatic fertilizers. 



Bone-meals. 



Phosphate rocks. 



Phosphates from iron furnaces. 

 Potassic fertilizers. 



Salts from German mines. 



Wood-ashes. 



American potash. 

 Effects of the different plant-foods on vegetation. 



Effects of nitrogen. 



Effects of phosphorus. 



Effects of potassium. 

 Purchasing of fertilizers. 

 Fertilizer laws. 

 Fertilizer equivalents. 

 Home-mixed fertilizers. 



Method of mixing the ingredients. 



Determining the quantities of ingredients required. 

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