The Bulletin. 63 



No. 3— 



Acid phosphate, 14 per cent phosphoric acid 965 pounds 



Cotton-seed meal, 6.59 per cent nitrogen, 2.5 per cent phos- 

 phoric acid and 1.5 per cent potash 750 pounds 



Nitrate of soda, 15 per cent nitrogen 110 pounds 



Kainit, 12.5 per cent potash 175 pounds 



2,000 pounds 



In this formula one-fourth of the nitrogen is supplied by nitrate of 

 soda and the other three-fourths by cotton-seed meal. This mixture 

 will contain: available phosphoric acid, 7.7 per cent; potash, 1.7 per 

 cent; nitrogen, 3.3 per cent (equal to ammonia, 4.0 per cent). 



No. 4— 



Acid phosphate, 16 per cent phosphoric acid 835 pounds 



Cotton-seed meal, 6.59 per cent nitrogen, 2.5 per cent phos- 

 phoric acid and 1*5 per cent potash 1,010 pounds 



Kainit, 12.5 per cent potash 155 pounds 



2,000 pounds 



This mixture will contain: available phosphoric acid, 7.0 per cent; 

 potash, 1.7 per cent; nitrogen, 3.3 per cent (equal to ammonia, 4.0 

 per cent). 



No. 5— 



Acid phosphate, 14 per cent phosphoric acid 860 pounds 



Fish scrap, 8.25 per cent nitrogen and 6.0 per cent phos- 

 phoric acid 850 pounds 



Kainit, 12.5 per cent potash 290 pounds 



2,000 pounds 



This mixture will contain: available phosphoric acid, 8.6 per cent; 

 potash, 1.8 per cent; nitrogen, 3.5 per cent (equal to ammonia, 4.3 

 per cent). 



No. 6— 



Acid phosphate, 16 per cent phosphoric acid 800 pounds 



Fish scrap, 8.25 per cent nitrogen and 6.0 per cent phos- 

 phoric acid 900 pounds 



Kainit, 12.5 per cent potash 300 pounds 



2,000 pounds 



This mixture is more concentrated than preceding ones, on account 

 of the use of higher-grade materials, and will contain : available phos- 

 phoric acid, 9.1 per cent; potash, 1.9 per cent; nitrogen, 3.7 per cent 

 (equal to ammonia, 4.5 per cent). 



No. 7— 



Acid phosphate, 14 per cent phosphoric acid 960 pounds 



Fish scrap, 8.25 per cent nitrogen and 6.0 per cent phos- 

 phoric acid 960 pounds 



Muriate of potash, 50 per cent potash 80 pounds 



2,000 pounds 



