COMPUTATION OF FERTILIZER MIXTURES 
13 
The quantities of these or any other materials required in the prepa- 
ration of this or any other analysis formula may be calculated by 
means of the expressions given above. 
In Table 7, by way of illustration, are given the weights of mono- 
immonium phosphate, monopotassium phosphate, and potassium 
nitrate required for a ton of mixed fertilizer when combined together 
or taken in pairs with an ammonium, phosphoric-acid, or potash 
salt for the preparation of the standard fertilizer analysis formulae 
listed above. The weights of the materials given in the table have 
been calculated on the basis of 100 per cent purity. In the case 
of the commercial preparation of fertilizer mixtures, it will be neces- 
sary to divide the weights giren in the table by the percentage of 
purity of the fertilizer material, and multiply by 100, to determine 
vvhat quantity of the commercial material to use. 
Table 
Weights of materials which may be used in making a ton of standard 
fertilizers 
Nurri- Analysis 
ber formula 
Fertilizer constituents sup- 
plied by other materials 
NH4H2P04 KH2PO4 KNO3 
XH 3 
K2O 
P2O5 
: 
10 
10 
10 
10 
11 I 
n 
12 
12 
12 
12 
13 
13 
13 
13 
14 
14 
15 
15 
16 
16 
16 
16 
17 
17 
17 
17 
18 
18 
IS 
18 
19 
19 
19 
19 
20 
20 
20 
20 
21 
0-8-24 
0-10-4 
0-10-10 ; 
0-12-4 
0-12-6 
0-12-12 
0-14-4 
2-8-16 
2-8-16 
2-10-4 
2-10-4 
2-10-4 
2-10-4 
2-10-6 
2-10-6 
2-10—6 
2-10-6 
2-12-2 
2-12-2 
2-12-4 
2-12-4 
2-12-4 
2-12-4 
2-12-6 
2-12-6 , 
2-12-6 
2-12-6 
2-14-2 
2-14-2 
2-16-2 
2-16-2 
, 43-12-2 
43-12-2 
43-12-2 
43-12-2 
3-8-3 
3-8-3 
3-8-3 
3-8-3 
3-8-5 
3-8-5 
3-8-5 
3-8-5 
3-8-6 
3-8-6 
3-8-6 
3-S-6 
3-8-8 
2-8-8 
3-8-8 
3-S-8 
3-10-4 
0-25-75 
0-71. 43-28. 57 ; 
0-50-50 
0-75-25 
0-66. 67-33. 33 
0-50-50 
0-77. 78-22. 22 
7. 69-30. 77-61. 54 
7. 69-30. 77-61. 54 
12. 5-62. 5-25 j 
12. 5-62. 5-25 
12. 5-62. 5-25 
12. 5-62. 5-25 
11.11-55.56-33.33 
11. 11-55. 56-33. 33 : 
11. 11-55. 56-33. 33 
11. 11-55. 56-33. 33 
12. 5-75-12. 5 
12. 5-75-12. 5 
11. 11-66. 67-22. 22 
11. 11-66. 67-22. 22 
11. 11-66. 67-22. 22 
11. 11-66. 67-22. 22 
10-60-30 
10-60-30 
10-60-30 
10-60-30 
11. 11-77. 78-11. 11 
11. 11-77. 78-11. 11 
10-80-10 
10-80-10 , 
14. 79-73. 04-12. 17 
14.79-73.04-12.17 
14.79-73.04-12.17 
14.79-73.04-12.17 
21. 42-57. 14-21. 43 j 
21.42-57.14-21.43 
21.42-57.14-21.43 I 
21.42-57.14-21.43 
18. 75-50-31. 25 
IS. 75-50-31. 25 
IS. 75-50-31. 25 
18. 75-50-31. 25 
17. 65-47. 06-35. 29 j 
17. 65-47. 06-35. 29 ! 
17.65-47.06-35.29 I 
17. 65-47. 06-35. 29 
15. 78-42. 11-42. 11 
15. 78-42. 11-42. 11 
15. 78-42. 11-42. 11 
15.78-42.11-42.11 
17. 65-58. 82-23. 53 
259.2 
199.4 
128.5 
270.3 
75.0 ; . 
1.50. 5 
30.8 
270. 3 
270.3 
172.3 
231.8 
193.3 
75.0 
270.3 
182.9 
Pounds 
306.6 
231.3 
383.3 
231.3 
346.9 
459.9 
231.3 
~"""306.~6~ 
147.4 
231.3 
63.6 
~~~~205.y 
346.9 
27.5 
63.6 
115.7 
Pounds Pounds 
Pounds 
374.0 
Pounds 
i 
79.3 
67.4 
119.3 
59.0 
80.9 
159.3 
9.5 
___ 315.6 
237.4 
103.4 
62.3 
21.0 
171.7 
105.2 
j.. 
153. 7 
35.5 !.. 
237.3 
"""ST .. 
185.7 
12.9 
85.9 
133.7 
185.7 
231.3 
95.6 ! 
270.3 
270.3 
172.3 
270.3 
172.3 : 
309.7 
291.1 
328.4 
230. 4 
259. 
112.6 
258.9 
259.3 
210.1 
14.7 
259.2 
160.8 
185.7 
112.2 : 
259.3 
140.3 
243.7 
27.2 
346.9 
140.3 
115.7 
31.5 
237.4 
193.7 
_ 225."S 
n. 5 
136.8 
14.2 
259. 3 
115. 7 
93.6 ! 
115.6 
71.5 ! 
---j 
173.5 I 
j 
58*. i i 
289.1 
87.0 
306.6 
144.8 
85.9 
16.4 
52.9 
173.7 
92.9 
213.7 
5.5 
~S5.~9~ "'.". 
128.6 
15.3 
97.8 
123.8 
128.8 
171.5 
43.4 
57. 
.3 
4U. 
128.2 
214.7 ; ! 
193.0 ____ . 
257.6 
60.3 . 
55.0 
).8 
90. 
267.0 
506.6 
67.5 
128.2 
29.8 
236.0 
343.5 
128.2 
115.7 
121.6 
151.2 
40.5 
100. 
