INSPECTION OF COMMERCIAL FERTILIZERS 



AND AGRICULTURAL LIME PRODUCTS 



FOR THE SEASON OF 1947 



By Fertilizer Control Service Staff: 



John W. Kuzmeski, Official ChemisI, in Charge Joseph Martell, Technical Assistant 



Albert F. Spelman. Senior Chemist Joseph Conklin, Inspector 



C. Tyson Smith, Assistant Chemist George E. McLaughlin, Inspector 



Joseph A. Bart, Junior Chemist Richard P. Patterson, Inspector 



Chailes J. Rogers, Junior Chemist Cora B. Grover, Senior Clerk 

 Robert T. Wetherbee, Junior Chemist 



CONTENTS 



Page 



Pertinent facts relating to Massachusetts fertilizer law. . : 2 



Manufacturers and brands not sampled 3 



Fertilizer tonnage 4 



Mixed fertilizers: 



Deficiency statistics 5 



Mixtures showing a commercial shortage of $1 or more per ton 7 



Mixtures substantially complying with guarantees 8 



Chemicals and raw products: 



Nitrogen compounds 11 



Products supplying nitrogen and phosphoric acid 11 



Phosphoric acid compounds 13 



Potash compounds 14 



Pulverized animal manures 15 



Agricultural Hnie products: 



Manufacturers and brands 17 



Hydrated or slaked lime 18 



Ground limestone 19 



Directory of Manufacturers who registered fertilizers for sale in Massachusetts in 1947 20 



PERTINENT FACTS RELATING TO MASSACHUSETTS 

 FERTILIZER LAW 



Commei cial 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. 



