356 MASS. EXPERIMENT STATION BULLETIN 260 



Fertilizer and Plant Food Tonnage 



Plant Food Elements 

 Fertilizer Available 



Nitrogen Phosphoric Acid Potash 

 Tons Tons Tons Tons 



Mixed fertilizers 41,529 1730 3206 2549 



Unmixed fertilizer chemicals and 



materials 18,788 1115 1737 596 



Pulverized natural manures 2,174 51 32 68 



Totals 62,491 2896 4975 3213 



Full details of the fertilizer and lime inspection work may be found 

 in Bulletins 51 and 52, Control Series. 



Miscellaneous Analytical Work. (H. D. Haskins, H. R. DeRose, M. W. 

 Goodwin, J. W. Kuzmeski). Between Novemiber 1, 1928 and April 1, 

 1929, the activities of the department included cooperative chemical work 

 with other departments of the institution. The general nature and extent 

 of this work is shown by the following summary: 



Soil, complete mineral analysis 20 



Corm plants, complete ash analysis 9 



Alfalfa, partial ash analysis 6 



Timothy, partial ash analysis 4 



Tobacco leaf, complete ash analysis 4 



Tobacco leaf, dry matter and partial ash analysis 59 



Tobacco stalks, dry matter and partial ash analysis 67 

 Soil, for carbon, nitrogen, carbonic acid, organic 



and volatile matter 26 

 Processed organic ammoniates, complete analysis 



including nitrogen activity tests 24 



Manure, complete fertilizer analysis 4 



Insecticides 2 



Millet seed and straw, dry matter and nitrogen 9Q 



Gladiolus bulbs, ash analysis 1 



Ground seeds of plants, ash analysis 4 



The department has also made the following analyses for farm organiza- 

 tions, institutional departments, and private individuals. For this latter 

 service a nominal charge is made. 



Fertilizers 21 



Peat and pond deposits 22 



Lime products 5 



Pulverized manures 4 



Cotton waste products 4 



Mulch 3 



Soils for partial analysis 23 



Wool waste 2 



Boiler sludge 2 

 In addition to the above, the department has cooperated as usual with 

 the Association of Official Agricultural Chemists. 



Vegetation Pot Experiments. (H. D. Haskins, A. B. Beaumont, G. J. 

 Larsinos). This experiment, comprising 96 pots', was conducted in further 



