ANNUAL REPORT, 1930 



263 



Products 



Mixed fertilizers 



Ground bone, tankage and fish 



Nitrogen products, organic and mineral 



Phosphoric acid products 



Potash products 



Dried, pulverized natural manures 



Miscellaneous 



Lime products 



Nitrate of potash 



Ammonium phosphate 



Totals 625 573 1849 750 6455 



'' Not counting check tests or repeats, which would probably amount to one-third 

 more in number. 



The four men einpldyed to secure samples for the j'ear's insijection 

 souipled 19,631 sacks or containers, representing 5,875 tons of material: 

 912 agents were visited. 



From July 1, 1929, to July 1, 1930, the tonnage of fertilizer and plant 

 food sold in Massachusetts was as follows: 



Plant Food Elements (Tons) 

 Fertilizer Available 



(Tons) Nitrogen Phosphoric Potash 



Acid 

 1,791 3,366 2,703 



Mixed fertilizers 



Unmixed fertilizer chemicals and 



materials 



Pulverized natural manures 



42,881 



21,249 

 2,491 



1,441 

 56 



Totals 



1,636 

 37 



5,039 



584 



3,364 



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

 letins 54 and 57, Control Series. 



Miscellaneous Analytical Work. (H. D. Haskins, H. R. DeRose, J. B. 

 Zielinski, Jr.. and G. J. Larsinos). As usual, the last two months of the 

 year and the first three niontiis of the new year, much cooperative chem- 

 ical work was carried on with other departments of the Experiment Sta- 

 tion. The general nature and extent of this work may be seen from the 

 following summarv: 



Cured tobacco, complete ash analysis 



Complete fertilizer 



Dwarf Essex rape plants, dry matter and phosphoric acid 



Fertilizer chemicals and unmixed materials 



Japanese millet plants, dry matter and nitrogen 



Onions, partial ash analysis 



Organic ammoniates, complete analysis including nitrogen 



activity 

 Phosphates, complete analysis for vegetation test 

 Soil analysis, partial chemical 

 Soil mechanical analy.sis 

 Tobacco plants, partial analysis 



16 

 1 



81 



3 



101 



1 



18 

 29 



21 



The fertilizer department has also been active in assisting the citizens 

 of the State, through farm organizations, institutional departments, and in 



