12 



Station Bulletin 362 



Table 6. — Deficiencies in Chemical Content of Fertilizers Inspected in New 

 Hampshire in the Eight-Year Period 1936-1943 



Year 



No. brands 

 analyzed 



Number 

 below 



Number and average of the deficiencies in terms 

 chemicals in 100 lbs. of fertilizer 



of lbs. of 



Total 



805 



318 



9.4 



Variation in Records of Individual Companies 

 in Meeting Fertilizer Guarantees 



Some companies show much better records than others. Data cov- 

 ering inspections of complete fertiHzers over the eight-year period (1936- 

 1943) for those nine companies for which inspections were made in sev- 

 en or eight years show a range from 29 to 82 per cent in the number of 



PERCENT 



10 

 9 

 8 



r 



6 

 5 

 4 h 



3 - 



2 - 



Total chemical units found exceeded total 

 units guaranteed by percentages shown 



7.2 



5.1 



5.0 



4.3 



3.6 3.6 



2.5 



1.6 



1.5 



.8 



L 



■nu 



Figure 7. — Total chemical units in complete fertilizers guarantees vs. 

 determinations - N. H., 1942 and 1943 



