INSPECTION OF COMMERCIAL FERTILIZERS 

 AND AGRICULTURAL LIME PRODUCTS 

 FOR THE SEASON OF 1956 



BY FERTILIZER CONTROL SERVICE STAFF 



Ji)hn W. Kuzmcski, Ktsearch Professor, Official Chemist 



Albert F. Spelman. Associate Research Projessor 



C. Tyson Smith, Associate Research Professor, Microscopisi 



Bertram Gerstcn, Assistant Research Professor 



David F. Owen, Jr., Research Instnicior 



Jeannette G. Davis, Research Instructor 



Joseph Conklin. Inspector 



Edward F. Vlach, Technical Assistant 



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, and 



magnesia. 

 Label must show: 



Net weight of fertilizer 

 Name, brand or trade mark, and grade 

 I 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 semiannually, on January 1 and July 1. 

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



Lime Products 



Kcgibtratioii is required annually on January 1. 

 Registration fee: $12 for each brand, 

 ^bel 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 sulfate (in gypsum or land plaster) 



4ake checks payable to Massachusetts Agricultural Experiment Station and 

 send correspondence to 



JOHN W. KUZMESKI 



Massachusetts Agricultural Experiment Station 



Amherst, Mass. 



