H2 Soil and Fertilization 



A combination of nitrogen, phosphate, and potash 

 fertilizers may be thoroughly mixed and applied at 

 one time. In this case they should be all thoroughly 

 worked into the soil for from two to four inches. 



Sour soils are neutralized by the action of lime. 

 Where moss and sour grass grow, the soil is almost 

 certain to be sour, requiring a liberal application 

 of lime. 



Before purchasing lime in large quantities a 

 sample should be sent to the State Agricultural 

 station for analysis, or it is likely that a great waste 

 of both time and money may ensue. (A list of the 

 stations is given elsewhere in this book.) 



The most important phosphate fertilizers are 

 the ground-rock phosphates and the super- 

 phosphates made from them. 



Lime or coal ashes will help to hold sandy soil 

 together and thus conserve moisture and retain 

 plant food. 



Lime will make clay soil more porous. Coal ash 

 is not a food as is wood ash. 



If you use a larger quantity of a commercial 

 fertilizer than is recommended in the directions on 



