HE AGRICULTURAL EXPERIMENT STATION 



BULLETIN No. 1. 



SECOND SERIES. 



PARTIAL STATEMENT OF ANALYSIS OF COMMERCIAL 

 FERTILIZERS FOR 1889. 



The fertilizer law in force in Maine requires the annual analysis of three 

 samples of each brand of fertilizer sold in the State. It is simply impossi- 

 ble to secure and analyze so many samples and publish the results before 

 farmers purchase their fertilizers in the spring. Consequently this partial 

 statement is made of analyses performed to date. 



The following are the trade values in use this year, as determined from 

 data collected in Connecticut, Massachusetts, and other States. For expla- 

 nation of terms, etc., see Station Bulletin No. 23, issued in 18S8. 



The Trade-Values for 1889 of Fertilizing Ingredients in Eaw 



Materials and Chemicals. 



The average Trade-Values or retail cost per pound of the ordinarily 



occurring forms of nitrogen, phosphoric acid and potash are as follows : 



Cts. 

 per lb. 



Nitrogen in ammonia salts 19 



nitrates 17 



Organic nitrogen in dry and fine ground fish, meat and blood 19 



cottonseed meal and castor-pomace 15 



fine bone and tankage 164 



fine medium bone and tankage 13 



medium bone and tankage 104 



coarser bone and tankage S£ 



hair, horn shavings and coarse fish scrap 8 



Phosphoric acid, soluble in water S 



ammonium cirate ~h 



dry ground fish, fine bone and tankage 7 



fine-medium bone and tankage 6 



medium bone and tankage 5 



coarser bone and tankage 4 



fine ground rock phosphate 1 



Potash as high-grade Sulphate and in forms free from Muriate (or 



Chlorides) <i 



as kainit ^h. 



as muriate -U 



W. II. JOJRDAN, Director. 

 Orono, Me., Mayl,lS89. 



