New York AGRICULTURAL EXPERIMENT STATION. 411 
2. Available phosphoric acid. 
Multiply the number representing the per cent. of available 
phosphoric acid by eight cents which will give the value, in cents, 
of the available phosphoric acid in 100 pounds of fertilizer. 
Haample.— In No. 119 the per cent, of available phosphoric acid 
is 13.21; hence, 13.21 x 8 cents=105.6 cents. 
3. Insoluble phosphoric acid. 
Multiply the number representing the per cent. of insoluble 
phosphoric acid by two cents, which will give the value, in cents, 
of the insoluble phosphoric acid in 100 pounds of fertilizer. 
Hxample—tIn No. 119, the per cent. of insoluble phosphoric 
acid is .48, hence .48 x2 cents=.8 cents. 
4, Potash. 
Multiply the number representing the per cent. of potash by 
five and one-half cents (if the potash is known to be present in 
the form of sulphate or carbonate) or by four and one-half 
(if the potash is known to be present in the form of muriate 
(chloride), kainit, etc.). The result will be the value, in cents, of 
the potash present in 100 pounds of fertilizer. | 
Example.—tIn No. 119, the per cent. of potash is 2.92. As the 
analysis does not state the form in which the potash is present, 
we will assume that it is in the form of sulphate; hence 2.92x 653 
cents—=16 cents. | ¢ 
5. Valuation of one ton of fertilizer. 
Add together the numbers representing the values, in cents, of 
nitrogen, available phosphoric acid, insoluble phosphoric acid and 
potash. The sum will give the value, in cents, of the fertilizing 
constituents in 100 pounds of fertilizer. Multiply this sum by 
twenty, which will give the value, in cents, of the fertilizing | 
ingredients in one ton of fertilizer. 
Example.— Taking No. 119 and the preceding values obtained, 
we have: 
Cents 
BOR.) VINIGTOMOM. 6. 6s ss’ ee ee es 3.49X154—...... ee. 54.0 
(2.) Available phosphoric acid... 13.21x 8 =.............. 105.6 
(3.) Insoluble phosphoric acid... 0.48 2 =.............. 0.8 
Beeerotash.... sees eed ees = 202 X Shak) CL ss» 16.0 
(5))) Dotal valuation of 100 pounds...........s00...50...... 176.4 
(6.) Total valuation of 2,000 pounds or one ton 
3,528 cents or 
176.4 cents x 20—= | $35.28. 
