23 



The table on the opposite page shows: 



(1). That out of a total of 335 brands of complete fertilizers 

 analyzed, 128 ( 28 per cent of the total number) fell below the mini- 

 mum guarantee in one or more elements; these deficiencies may be 

 expressed as follows: 



104 brands deficient in one element. 

 23 brands deficient in two elements. 

 1 brand deficient in all three elements. 



(2). That 23 brands (about 7 per cent of the whole number) 

 showed a commercial shortage; that is, when overruns were used to 

 offset shortages, the value of the plant food found did not equal the 

 value guaranteed. The following deficiencies were found: 



89 brands were deficient in nitrogen. 



34 brands were deficient in available phosphoric acid. 



30 brands were deficient in potash. 



(3). More nitrogen and available phosphoric acid deficiencies 

 were recorded than for the previous season. There were 12 less 

 potash shortages and the commercial shortages were 3 less than 

 for 1912. 



Table showing commercial shortages (25 cents and over per ton) 

 in mixed commercial fertilizers for 1912 and 1913. 



The following brands have shown a commercial shortage of 

 50 cents or over per ton, value of overruns being used in all cases to 

 reduce shortages. 



American Agricultural Chemical Co., Complete Tobacco 

 Fertilizer No. 80. Nitrogen found 3.97%, guaranteed 4.53%; avail- 

 able phosphoric acid found 3.04%, guaranteed 3%; potash found 

 5.70%, guaranteed 5.50%. 



Bradley's Complete Manure for Top Dressing Grass and Grain, 

 Nos. 193-442-507. Nitrogen found 4.69%, guaranteed 4.94%; 

 available phosphoric acid found 4.04%, guaranteed 4%; potash found 

 6.41%, guaranteed 6%. 



Bradley's English Lawn FertiHzer, No. 527. Nitrogen found 

 4.42 per cent guaranteed 4.94%; available phosphoric acid found 

 4.21%, guaranteed 4%; potash found 6.26%, guaranteed 6%. 



Joseph Breck &. Sons Corp., Breck's Lawn and Garden Dressing, 

 No. 478. Nitrogen found 3.80%, guaranteed 4.11%; available 

 phosphoric acid found 5.36%, guaranteed 5%; potash found 5.31%, 

 guaranteed 5%. 



