FERTILIZER EXPERIMENTS WITH SUGAR BEETS. 13 
and potash, all conditions being considered, gave very small increase 
when used singly, the two used together produced higher yield than 
either alone; the other being the small yield of Plat 7 where the smal¬ 
ler quantity of nitrate was used alone, when compared with other 
plats containing nitrate. 
Table 10 
FERTILIZERS ON THE ANDREWS FARM SOUTH~OF LAKE PARK, 1905_ 
SIX-TENTH ACRE PLAT 
J Plat Number 
KIND OF FERTILIZER 
Per Acre 
Cost of Fertilizer 
per acre 
Yield of Clean Beets 
per acre 
Sugar in Beets 
Purity Coefficient 
Amount Received per 
acre for Beets 
Amount Received Less 
Cost of Fertilizer 
Factory Tare was - 
© 
a 
Av. Wt. of 18 Sam- m 
pie Beets per Beet § 
1 
.,_ Pounds 
Acid Bone Meal. 193 
8 1.93 
Tons 
15.61 
per ct 
15.2 
87.8 
$78.05 
$76.12 
10. 
31 
2 
Acid Bone Meal. 192 
Sulphate of Potash. 96 
5.58 
16.81 
15.4 
88.0 
84.05 
78.47 
10. 
28 
3 
Sulphate of Potash. \i> 
4.47 
15.14 
15.0 
86.2 
75.70 
71.23 
10.8 
29 
34 
4 
Sulphate of Potash. 100 
Nitrate of Soda. 199 
9.12 
17.89 
14.2 
85.8 
89.45 
80.33 
12.0 
5 
Nitrate of Soda. 426 
12.7S 
18.60 
14.6 
85.7 
93.00 
80.22 
9. 
26 
6 
No Fertilizer. 
14.76 
14.0 
87.2 
73.80 
73.80 
14. 
24 
7 
Nitrate of Soda. op 
6.36 
16.16 
15.0 
85.3 
80.80 
74.14 
10. 
~2T 
8 
Nitrate of Soda. 214 
Acid Bone Meal. 215 
9.28 
15.93 
14.71 
15.2 
85.3 
79.65 
70.37 
15. 
15. 
24 
9 
Complete Fertilizer. 
Acid Bone Meal. 187 
Nitrate of Soda. 187 
Sulphate of Potash . 94 
11.06 
15.0 
86.3 
73.55 
62.49: 
10 
No Fertilizer . 
12.18 
15 2 
84.9 
60.90 
60.90 
13.2 
18 
11 
No Fertilizer. 
13.63 
15.2 
88.7 
68.15 
68.15 
8.6 
30 
Average. 1 
15.58 
14.9! 
86.5 
$77.90 
27 
The effect of complete fertilizer although more favorable than 
in the previous two years, indicates the same general tendency, in 
the apparent neutralization of the action of nitrate of soda in the 
presence of potash and phosphoric acid together, as derived from 
the fertilizer; the yield being about the same as the unfertilized plat, 
two plats removed, less than the nitrate and acid bone meal plat ad¬ 
joining, but much more than the unfertilized plats adjoining on the 
other side. 
All the results seem to indicate that the increase in yields was 
chiefly due to nitrate of soda used alone or with the other elements, 
and that there was no additional net profit from the application of 
over double the quantity of the smaller amounts. 
Taking all the factors into consideration a careful comparison 
of Plats 5 and 6 and conservative estimates seem to indicate that on soil 
capable of producing from 13.5 to 14.5 tons per acre without 
fertilization, about 200 pounds of nitrate of soda caused a gross in¬ 
crease of $20 per acre with beets at $5 per ton, or a net increase over 
the cost of fertilizer of about $6 to $7 per acre. 
In appearance the size and shape of the beets grown in this ex- 
