Experimental Error in Crop Tests 
85 
EFFECT OF PL.A1VTING AT DIFFERF^AT RATES UPOIV THE 
GROWTH OF CORiV IN POTS 
In 1915, corn was planted at four different rates, namely 
one, two, four, and six plants in pots 16 by 36 inches in size 
and containing 253 pounds of soil. The results are contained 
in Tables 44, 45, and 46. Without manure (Table 45) the 
individual plants in the six, four and two-rate yielded respec- 
Table 44 — Summary of data showing the effect of different 
rates of planting upon growth of corn in pots, Hogue's 
Yellow Dent corn (1915) 
Rates of 
planting 
per pot 
Moisture-free 
contents 
No. pots 
averaged 
Dry matter* 
Total 
leaf- 
area 
per 
plant t 
Height 
of stalk 
Soil 
Manure 
Ear 
Total 
Pounds 
Pounds 
Grams 
Grams 
Sq. in. 
Inches 
1 
253 
4 
232 
476 
1334 
123 
1 
253 
1.55 
8 
262 
539 
1457 
115 
2 
253 
4 
92 
242 
1210 
120 
2 
253 
1.55 
4 
118 
279 
1153 
112 
4 
253 
4 
37 
127 
895 
106 
4 
253 
1.55 
4 
37 
151 
990 
105 
6 
253 
4 
6.5 
79.0 
714 
90 
6 
253 
1.55 
4 
16.7 
101.9 
861 
93 
*Where more than one plant was grown in a pot, the average yield 
per plant is given. 
tThe leaf-area is not very significant inasmuch as the lower leaves died 
prematurely according to the rate of planting — due to malnutrition. 
Table 45 — Summary of data showing the effect of different 
rates of planting upon growth of corn in pots. The 
results at different rates of planting without manure are 
here expressed in per cent of the results from one plant 
per pot. Hogue's Yellow Dent corn (1915)^^ 
Rate of 
planting 
per pot 
Wt. of 
soil 
(moisture 
-free) 
No. of 
pots 
averaged 
Dsy matter per plant 
Ear Total 
Total 
leaf-area 
per plant 
Height of 
stalk 
Pounds 
Per cent 
Per cent 
Per cent 
Per cent 
1 
253 
4 
100 
100 
100 
100 
2 
253 
4 
39.7 
50.8 
90.7 
97.5 
4 
253 
4 
15.9 
26.7 
67.1 
86.2 
6 
253 
4 
2.8 
16.6 
53.5 
73.2 
*Data calculated from Table 44. 
