116 
SEVENTH ANNUAL MEETING OF THE 
you wish to compound a certain mixture, you first ascertain 
the analysis of your goods. Then you find out how many 
pounds of any material it takes to give you one per cent. For 
instance we take sul. ammonia analyzing 25 per cent. By di¬ 
viding 2,000 by 25 we find that it takes 80 pounds to give one 
per cent. Now, if you want 3 per cent, of ammonia in your 
fertilizer you multiply 80 by three and you have 240 pounds. 
In the same way you follow with the potash and phosphoric 
acid. You may have a given amount of fertilizing materials 
and wish to know what it will analyze if mixed. For instance 
we will take. 
Ammonia. 
Potash. 
PhosphV acid. 
Avalable phos¬ 
phoric acid. 
500 pounds low grade potash . 
6.75 
500 “ blood and bone. 
500 “ fish, dried, ground. 
500 “ dissolved bone black. 
1.50 
1.62 
3.25 
2. 
"a 
3.12 
9.75 
5.25 
A 
I do not give this as a model formula, but to show how it 
can be done. If you wish other proportions you have simply 
to proceed in the same manner. 
It is hard for some people to understand the difference be¬ 
tween a high and a low grade fertilizer. They figure that a 
ton is a ton, and if they can get a ton for $20 it is better than 
paying $40, but, poor souls, they are to be pitied. 
Now we will make up a high grade fertilizer. 
d 
•rH 
a 
o 
£ 
S 
<1 
Potash. 
Available phos¬ 
phoric acid. 
200 DOunds sulnhate ammonia. 
2.5 
222 
“ nitrate soda. 
2. 
922 
“ sulphate. 
13. 
956 
dissolved bone black. 
5.20 
2.000 
4.5 
13. 
5.20 
