New York Agricultural Experiment Station. GOl 



Potato Fokmula B. 

 Ingredients. Composition. 



Nitrate of soda 192 pounds. Nitrogen 6.5 percent. 



High grade dried blood 800 poumls. Available phos. acid 4.9 percent. 



Acid phosphate 570 pounds. Potash 10. 1 per cent. 



Sulphate of potash, . . . 400 pounds. 

 Land plaster 38 pounds. 



2000 pounds. 



Formula No. 3. — This formula is an imitation of the one so 

 commonly followed by clubs of farmers on Long Island who pur- 

 chase their fertilizers on. the cooperative plan. 



L, I. FOEMULA A. 

 Ingredients. Composition. 



Nitrate of soda 127 pounds. Nitrogen 3.8 per cent. 



High grade dried blood 440 pounds. Available phos. acid 8.0 percent. 



Acid phosphate 1000 pounds. Potash 10.4 percent. 



Muriate of potash 400 pounds. 



Land plaster 33 pounds. 



2000 pounds. 



Formula No. 4- — This formula is similar to No, 3, except that 

 the potash is supplied as the sulphate instead of the muriate. 



L. I. FOKMULA B. 



Ingredien ts. Composition. 



Nitrate of soda 127 pounds. Nitrogen 4 percent. 



High grade dried blood 440 pounds. Soluble phos, acid . , 8,4 percent. 



Acid phosphate lOOO pounds. Potash 9.2 per cent. 



Sulphate of potash.... 4u0 pounds. 

 Land plaster 33 pounds. 



2000 pounds. 



It was intended that approximately one-fourth of the nitrogen 

 furnished by these mixtures should be nitric, and three-fourths 

 organic nitrogen. The manufacturers who mixed the fertilizer 

 were also instructed that the phosphoric acid should be as largely 

 soluble as possible. The analyses of the four mixtures showed 

 that these conditions were secured. 



