16 The Bulletin 



New Fertilizer Formula for Sweet Potatoes 



1,000 pounds of gTOund limestone or marl, 

 500 pounds of 16 per cent acid phosphate, and 

 500 pounds of cotton-seed nieah 



Any other material carrying an equal jiniount of nitrogen may be sub- 

 stituted for the cotton-seed meal, such as dried blood, fish scrap, and so 

 on. Cost, about $12.55 a ton. 



]Vew Fertilizer Formula for S^WI Potatoes 



600 pounds of ground limestone or marl, 

 500 pounds of 16 per cent acid phosphate, and 

 700 pounds of cotton-seed meal, and 

 200 pounds of nitrate of soda. 



Any other material carrying an equal amount of available nitrogen 

 may be substituted for the cotton-seed meal, such as dried blood, fish 

 scrap, and so on. Cost, about $21.03 a ton. 



