10 



CONTROL SERIES No. 65 



"New England Standard Nine" Grades. 



No changes have been made in this list since those recorded in 1931. The 

 tonnage accompanying each grade in the following table shows towhat extent 

 the farmers have followed the recommendations of the agronomists, manu- 

 facturers and chemists with reference to the selection of fertilizers for the 

 needs of crops grown in New England. 



a Including 8 tons of 10-16-14. 

 b Including 137 tons of 15-30-15 

 c Including 17 tons of 14-12-12. 



d Including 11 tons of 10-5-10. 

 e Including 98 tons of 10-16-20. 

 / Including 10 tons of 4-16-20. 



Of the total tonnage of mixed fertilizers, 59.75 per cent was from grades 

 recommended for New England conditions, and an additional 30.5 per cent 

 was from grades varying but one per cent in one or more plant food elements 

 from the grades advocated: over 90 per cent, therefore, of the total tonnage 

 conformed to the group recommended, or varied from it by one per cent in 

 one or more elements. Of the ten grades, including the multiple strength 

 mixtures, that have the highest tonnage (30,136 tons), only five, totalling 

 21,648 tons, were among the New England Standard Nine. 



About 22 per cent of the total tonnage of mixed fertilizers was from six 

 grades not among the number known as the New England Standard Nine. 

 They are 4-8-7, third largest tonnage sold; 4-10-5, sixth largest; 3-8-4, 

 eighth largest; 4-12-4, ninth largest; 5-3-5, tenth largest; 4-8-8, twelfth 

 largest. 



