52 
Colorado Experiment Station 
this difference in form must certainly make a big difference in the 
crushing strength of the kernels, in whatever position they may be 
placed under the pestle. We placed every kernel in the same position, 
namely, crease downward. I do not think that there is any result ob¬ 
tainable by this method of investigation which is definite enough to 
advance the object of our investigation. 
THE WHEATS GROWN AND CULTURAL METHODS USED 
In the experiments planned to ascertain something definite con¬ 
cerning the part played by individual factors in determining the char¬ 
acter of our wheat we have used three varieties. Defiance, a wheat 
of local origin, which has retained public favor in this State, for up¬ 
wards of thirty years, Red Fife and Kr^banka. I chose spring-wheat, 
because, until recently, almost no winter-wheat was grown in the State, 
further, because, its whole growing period, from planting till maturity, 
is short and without any resting period, or one principally of under¬ 
ground developmient, a]nd also because we escape the danger of winter- 
killing. We grew twelve plots of each variety, three plots were dressed 
with sodic nitrate, three with rock superphosphate, three with potassic 
chlorid and three were used as check plots. This gives us 36 plots in 
all- The experiments with the different varieties were the same, so 
that the statement of them for one variety will suffice for the others. 
In 1913, Sections 1700 and 1800 were plowed with a turning plow 
to a depth of 12 inches and with a subsoil plow to a depth of 16 inches, 
or 4 inches deeper than the turning plow. Section 1900 was turned to 
a depth of nine inches and; not subsoiled. The deep cultivation was 
given, because the average depth to which it had previously been stirred 
was not more than 6 or 7 inches. The deep stirring was in some re¬ 
spects a mistake, but this has been discussed elsewhere and as noi very 
serious results followed, it need not be discussed at this time. The 
fertilizers were applied as follows: Nitrogen at the rate of 120 pounds 
per acre tO' the plots receiving this fertilizer in Section 17CXD, 80 pounds 
to those in Section 1800 and 40 pounds to those in Section 1900. Phos¬ 
phorus, at the rate of 60 pounds of soluble phosphorus tO' the acre, to 
the plots receiving this manure in Section 1700, 40 pounds to those in 
Section 1800, and 20 pounds to those in Section 1900. Potassium at 
the rate of 200 pounds per acre to those plots receiving it in 
Section 1700, 150 pounds per acre to those in Section 1800, and 100 
pounds to those in Section 1900. There was a check plot in each sec¬ 
tion of land for each variety. It will be noticed that the plots in Sec¬ 
tion 1900 received the minimum amount. We have adhered to this 
order throughout the three seasons. The whole amount of phosphorus 
and potassium was applied at the time of planting and was harrowed in. 
