CHAPTER III 



FERTILIZERS AND HOW TO USE THEM 



A comfortable home^ food, water, fresh air and sun- 

 shine are as necessary to plant growth as they are to 

 the health and happiness of any human being. 



SCIENTIFICALLY, we recognize at 

 least ten elements necessary for plant 

 growth and the maturing of a crop. The three 

 most important of these may be secured from 

 the soil, air and water. These three elements, 

 which must be present in any soil in sufficient 

 quantities and in an available form to insure 

 success, are nitrogen, phosphorus, and potas- 

 sium. No one of these may be left out or the 

 crop will suffer, if indeed, it matures at all. 



The important points to consider are the 

 various soils and what they lack and the differ- 

 ent crops that need these three elements in 

 certain proportions in order to produce a maxi- 



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