INSPECTION OF COMMERCIAL FERTILIZERS 

 AND AGRICULTURAL LIME PRODUCTS 

 FOR THE SEASON OF 1951 



BY FERTILIZER CONTROL SERVICE STAFF 



John W. Kuzmeski, Research Professor, Official Chemist 



Albert F. Spelman, Associale Research Professor 



C. Tyson Smith, Assisla7it Research Professor, MicroscopisI 



Robert T. Wetherbee, Asistani Research Professor 



Joseph Bart, Research Instructor 



Joseph A. Martell, Technical Assistant 



Edward S. Berestka, Technical Assistant 



Joseph Conklin, Inspector 



Cora B. Grover, Principal Clerk 



PERTINENT FACTS 

 RELATING TO MASSACHUSETTS FERTILIZER LAW 



Commercial Fertilizers 



Registration is required annually on January 1. 



Registration fee is $8 for each element: nitrogen, phosphoric acid, potash, mag- 

 nesia. 

 Label must show: 



Net weight of fertilizer 

 Name, brand or trade mark, and grade 

 Name and address of manufacturer 



Guaranteed analysis: nitrogen, available phosphoric acid, water soluble 

 potash. A guarantee of total phosphoric acid may be used instead of 

 available phosphoric acid for bone, untreated phosphate rock, tankage, 

 dried and pulverized manures, ground seeds, and wood ashes. 

 Tonnage reports are required semi-annually, on January 1 and July 1 

 Tonnage fee: 6 cents per ton of 2,000 pounds 



Lime Products 



Registration is required annually on January 1. 

 Registration fee: $12 for each brand. 

 Label must show: 



Net weight of product 



Name, brand or trade mark, and form of lime 



Name and address of manufacturer 



Guaranteed analysis: calcium oxide, magnesium oxide, carbonates of cal- 

 cium and magnesium, or calcium sulphate (in gypsum or land plaster) 



Make checks payable to Massachusetts Agricultural Experiment Station and 

 send correspondence to 



JOHN. W. KUZMESKI 



Massachusetts Agricultural Experiment Station 



Amherst, Mass. 



