24 BULLETIN 698, U. S. DEPARTMENT OF AGRICULTURE. 
distribution, but the scanty total and the long drought from June 11 
until the end of July reduced yields very much. The average acre 
yields produced by the leading groups were as follows: Milo, 19 
bushels; Dwarf milo, 22.6 bushels; feterita, 24.5 bushels; and Dawn 
kafir, 9.6 bushels. The standard kafirs averaged less than half as 
much as the Dawn. 
The precipitation of 1913 was only 2 inches below normal and 
therefore should have been sufficient for the production of good 
crops. Owing to its very uneven distribution, however, the grain- 
sorghum crops were almost complete failures. The table of daily 
precipitation (p. 9) shows that the early summer was dry, that 
most of the showers of June were too small in quantity to be effec- 
tive, and that in the three months from June 12 to September 10 
only one effective precipitation occurred, namely, that of July 25-28, 
inclusive. Only the plants at the ends of the rows were able to 
develop heads under these conditions. The rain of September 10-11 
came too late to revive the others, and no yields were obtained. 
The year 1914 returned about a half crop. The winter of 1913-14 
was unusually wet in its first half and abnormally dry in its second 
half. January, February, and March, 1914, were “bone” dry. April 
brought only light showers. The rainfall of May was above normal, 
but the temperatures at sowing time were low, and rather poor 
germination resulted. June was remarkably dry, and the scattered 
rains of the first week in July relieved the suffering plants but 
temporarily. The drought of the remainder of July cut down the 
number of heads that were able to emerge, but the rains of early 
August were sufficient to mature these in spite of the subsequent 
drought. The average acre yields of the leading groups were as 
follows: Milo, 11 bushels; Dwarf milo, 26.9 bushels; feterita, 18.5 
bushels; and Dawn kafir, 14.7 bushels. 
In general, the seasonal conditions in 1915 were good. The total 
precipitation recorded at the cereal field station was 25.1 inches, 
while that recorded by the Weather Bureau observer in town was 
27.6 inches, a difference of 2.5 inches. Either quantity is sufficient 
for the growth of these crops, and the distribution was such that 
growth was not interrupted at any time. While the rainfall in both 
May and June was below normal, that of April was much above, and 
the distribution in the two dry months was good. The three suc- 
ceeding months were abnormally wet. The combined result was the 
highest yields that have ever been obtained at the Amarillo Cereal 
Field Station. The average acre yield of all lots of milo was 61.4 
bushels; of Dwarf milo, 68.4 bushels; of feterita, 46.9 bushels; of 
Blackhull kafir, 51.9 bushels; and of Dawn kafir, 53.3 bushels. 
The season of 1916 was very dry and unfavorable to the grain 
sorghums. The total precipitation recorded at the field station was 
