Food for Long Island (Counties of Nassau, Queens and Suffolk) ;^i,24i,28o 



Plants Monroe County 214,000 



220 Erie County 1 86,370 



Cayuga County 131,260 



Oneida County 112,630 



Onondaga, Ontario, Wayne, Ulster, Chautauqua, each from 



$102,000 to 1 10,000 



These twelve counties use about one-half of the com- 

 mercial fertilizers used in the entire State. 



Composition of Fertilizers in Different Classes. 



If we compare our four different classes of complete 

 fertilizers in respect to the average amounts of Nitrogen, 

 available phosphoric acid and potash contained in them, 

 we have the following table: 



Composition of Different Grades of Fertilizers. 



Class of Fertilizers. 



Low-grade 



Medium-grade 



Medium high-grade. 

 High-grade 



In 100 Pounds of Fertilizer. 



Pounds 



of 

 Nitroeren. 



1 .22 

 1 .70 



2.47 

 4.00 



Pounds 



of Available 



Phosphoric 



Acid. 



8.18 



9. 10 



8.82 



8.36 



Pounds 



of 

 Potash. 



2.60 



3-48 

 6.02 



7.22 



Pounds 



of Total 



Plant-food. 



12.00 

 14.28 



I7.37 

 19.60 



In the fourth column, under the heading "pounds of 

 total plant-food," we give the sum of the Nitrogen, available 

 phosphoric acid and potash. We notice the following 

 points in connection with this table: 



1. The percentage of phosphoric acid does not vary 

 greatly in the different classes of fertilizers. 



2. The percentage of Nitrogen and of potash increases 

 in the higher grades. 



3. The total amount of plant-food in 100 pounds of 

 fertilizer increases in the higher grades, this increase being 

 due to increase of Nitrogen and potash. 



4. Representing the amount of Nitrogen in each grade 

 of fertilizer as i, we have the following proportions of avail- 

 able phosphoric acid and potash in the different grades: 



