COTTON 133 
In most States, however, it is now unlawful— 
and properly so—for the fertilizer manufacturer 
to use the “sliding scale”’ in his printed analysis; 
only guaranteed minimum figures are allowed. 
Ammonia is used in fertilizers because it sounds 
as if a little more nitrogen was used, but values are 
estimated on basis of nitrogen content. Remember 
it is nitrogen you are after. Ammonia can be 
reduced to terms of nitrogen by multiplying by 
.824. In other words, one pound of ammonia 
equals .824 pound nitrogen. 
