8 Nebraska Agricultural Exp. Station Research Bul. 1G 
yielding qualities, which, coupled with its superior germinative 
ability, makes it a very suitable tt^pe to grow. 
22. Uniform and varied distribution of seed corn in the 
field were compared for yield of grain. It was found that 
there may be much irregularity in stand without a material 
effect upon yield. As an average for the years 1915 and 1916, 
a uniform stand of three plants per hill yielded 1.8 per cent 
more than the mean for the varied distributions in which suc- 
cessive hills contained (a) 1, 2, 8, 4, and 5 plants, (b) 2 and 4 
plants, and (e) 1, 8, and 5 plants. This is greater irregularity 
than results from mechanical variation of corn planters, or from 
planting 75 per cent germinating seed corn at the rate of four 
plants per hill. 
23. Comparative yields were obtained during two years for 
corn hills containing one, two, or three plants, when sur- 
rounded by hills with three plants. Two-plant hills and one- 
plant hills yielded respectively 18 per cent and 39 per cent less 
than a three-plant hill. Fifty per cent of the yield lost in a 
hill with one missing plant was recovered in the four nearest 
adjacent hills at right angles. Seventy-two per cent of what 
was lost in a hill with two missing plants was recovered in the 
four nearest adjacent hills. Fifty-six per cent of what was lost 
in a hill with no plants was recovered in the four nearest adja- 
cent hills. It is probable that this recovery also extends at 
least to the four nearest diagonal hills. 
24. An application of the law of chance to the random 
distribution of sound kernels shows: (1) When 75 per cent 
germinating seed is planted four per hill. 31.6, 42.3. 21.1. 4.6, 
and 0.4 per cent of the hills will contain 4, 3, 2, 1. and no sound 
kernels respectively. These percentages were borne out by 
actual test. (2) If corn testing 65 per cent germination is 
planted at the rate of 4 kernels per hill, 17.8, 38.5. 31.1. 11.1, 
and 1.5 per cent of the hills will contain 4, 3, 2, 1. and no sound 
kernels respectively. (3) If corn is planted only half of which 
will grow, at the rate of 5 per hill, 3.1, 15.6, 31.3, 31.3, 15.6, and 
3.1 per cent of the hills will contain 5. 4, 3, 2, 1. and no plants. 
The actual distribution from a planter will vary some- 
what from the above figures for the reason that no mechanical 
planter will uniformly drop a given number of kernels. The 
use of low germinating seed corn requires a definite knowledge 
of the germination percentage which can only be accurately 
determined by a properly conducted germination test. 
