Experimental Error in Crop Tests 
43 
Table 21 — Relative yields of three-plant corn hills adjacent 
to hills with missing plants (1914- and 1917) 
Three-plant hills sur- 
rounded by three- 
plant hills except as 
indicated below 
Number 
of hills 
averaged 
Number 
of plants 
per hill 
Number 
of ears 
per 100 
plants 
Averag 
yield of t 
h] 
Actual 
^e grain 
tiree-plant 
lis 
Relative 
Grams 
Per cent 
YEAR 1914 
Surrounded by hills with 
310 
3 
83.6 
465.8 
100 
Adjacent to one hill with 
two plants 
149 
3 
87.0 
478.2 
103 
Adjacent to one hill with 
one plant 
44 
3 
86.3 
490.3 
105 
Adjacent to one blank 
hill 
132 
3 
88.0 
526.6 
113 
Adjacent to two blank 
hills 
57 
3 
91.0 
666.5 
143 
YEAR 1917 
Surrounded by hills with 
three plants 
288 
3 
95 
509 
100 
Adjacent to one hill with 
two plants 
211 
3 
96 
519 
102 
Adjacent to one hill with 
one plant 
258 
3 
102 
555 
109 
Adjacent to one blank 
hill 
234 
3 
99 
585 
115 
Adjacent to two blank 
hills 
198 
3 
101 
631 
125 
RELATIOX OF STAND TO YIELD IX SINGLE-ROAV TEST PLATS 
The data in Table 22 were compiled from records of exten- 
sive ear-to-row tests of Hogue's Yellow Dent corn made by 
Lyon and Montgomery at the Nebraska Station during the 
four years 1904-1907. Rows 72 hills in length had been 
planted by hand at the rate of three kernels per hill, 3 feet 8 
inches apart. The entire plats were harvested regardless of 
the actual stand secured, altho a record was taken of the per 
cent stand. 
In Table 22 the plat yields have been assembled into groups 
for each year according to the per cent stand. Since a rather 
large number of plats are averaged in each group, this may 
overcome in large measure any inherent difference in yield- 
ing power of the individual ears tested, and the differ- 
