Food for 

 Plants 



229 



FERTILIZERS. 



Contributed by J. L. Hills, Vermont Experiment Station. 



For $30 there was purchased in Vermont, in 1903, in 

 average high grade, medium grade and low grade fertihzers 

 the following amounts of actual plant foods: 



Nitrogen 



LOH'GRADE 

 MEDIUM " 

 HIGH " 



i!. ,'l:. 



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Available 

 Phosphoric 

 Acid 



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