ANNUAL REPORT, 1936 63 



FERTILIZER CONTROL SERVICE 

 H. D. Haskins in Charge 



Fertilizer Inspection. (H. D. Haskins, H. R. DeRose, J. W. Kuzmeski, 

 A. F. Spelman, Chemists; J. T. Howard, C. L. Whiting, G. E. Taylor, Sampling 

 Agents; Harry L. Allen, Laboratory Assistant.) Records for the year show 

 that 112 firms have registered for sale in the State of Massachusetts 490 brands 

 of mixed fertilizer and fertilizing materials and 52 brands of agricultural lime 

 and gypsum. Results of analysis show that 75 percent of the mixed fertilizer 

 brands, 83 percent of the unmixed fertilizer brands and 79 percent of the lime 

 brands showed no deficiencies. The gross receipts from the registration of the 

 fertilizer and lime products and from fertilizer tonnage fees for the year 1936 

 were $14,464.75. 



For about ten weeks, beginning April 1, three experienced men employed 

 to draw samples for inspection purposes sampled 21,132 sacks or containers, 

 representing 14,789 tons of materials; 158 towns were visited, and 1,782 samples 

 representing 532 brands were drawn from stocks found in the possession of 606 

 agents or owners. The following summary shows the character of these sub- 

 stances, as well as statistics with reference to their inspection. 



Brands Brands Samples Number Number of 

 Registered Collected Drawn of Deter- 



Analyses minations 



Mixed fertilizers 290 296 970 415 5,931 



Ground bone, tankage and fish 48 50 161 64 486 



Nitrogen products, mineral and organic 56 • 51 208 117 397 



Phosphoric acid products 22 24 112 30 127 



Potash products 23 23 72 31 100 



Dried pulverized natural manures. ... 29 30 88 34 217 



Nitrate of potash 7 7 19 11 62 



Peat products 2 4 7 4 21 



Wood and cotton hull ashes 6 4 8 8 57 



Miscellaneous 5 5 14 6 51 



Lime products 51 51 115 56 634 



Totals 539 545 1,774 776 8,083 



During the period July 1, 1935 to July 1, 1936, the tonnage of fertilizer and 

 plant food sold in Massachusetts was as follows: 



Plant Food Elements (Tons) 



Available 



Fertilizer Nitrogen Phosphoric Potash 

 (Tons) Acid 



Mixed fertilizers 43,682 2,238 3,727 3,097 



Unmixed fertilizer chemicals and materials ... . 19,165 1,386 1,667 672 



Pulverized natural manures 1,634 35 25 47 



Totals 64,481 3,659 5,419 3,816 



Full details of the fertilizer and lime inspection will be found in Control 

 Bulletins 84 and 87. 



Miscellaneous Analytical and Diagnostic Work. (H. D. Haskins, H. 

 R. DeRose, A. F. Spelman, J. W. Kuzmeski.) Chemical studies of a coopera- 

 tive nature have been carried on, as has been the custom in the past, with the 

 several departments of the institution, Field Station, and County Agents. The 

 character and extent of this work is shown in the following summary: 



