4 n. h. agr. experiment station [ Bulletin "238 



Total 

 Brands Deficiencies 



Nitrogen, total phosphoric acid, available 



phosphoric acid and potash 1 4 



Nitrogen, total phosphoric acid and potash 



Nitrogen, available phosphoric acid and 



potash- 



Nitrogen, total phosphoric acid and avail- 

 able phosphoric acid 



Nitrogen and total phosphoric acid 



Nitrogen and available phosphoric acid.... 



Nitrogen and potash 



Nitrogen 



Total phosphoric acid, available phos- 

 phoric acid and potash 



Total phosphoric acid and potash 



Available phosphoric acid and potash 



Potash 



Total phosphoric acid and available phos- 

 phoric acid 



Total phosphoric acid 



Available phosphoric acid 



55 87 

 NITROGEN DEFICIENCIES 



Seven brands of nitrate of soda and two brands of sul- 

 phate of ammonia were analyzed. All met their guarantee. 

 One hundred fourteen brands were guaranteed to contain 

 nitrogen in amounts varying from 0.82 per cent to 8.22 

 per cent. Twenty-two of these failed to meet the guaran- 

 tee. Six were below the guarantee by less than one-tenth 

 per cent. Seven were below by more than one-tenth per 

 cent but less than two-tenths per cent. Five were below by 

 more than two-tenths per cent but less than three-tenths 

 per cent. Two were below by more than three-tenths 

 per cent but less than four-tenths per cent. One was 

 below by more than four-tenths per cent but less than 

 one-half per cent. One failed to meet the guarantee by 

 0.54 per cent. 



