54 BULLETIN 1173, U. S. DEPARTMENT OF AGRICULTURE. 
RESULTS AT NEPHI. 
No experiments combining dates and rates of seeding were con- 
ducted at Nephi with either winter or spring wheat, but rate-of- 
seeding experiments were conducted during the years 1910 and 1911 
and 19138 to 1917, inclusive, and in 1919 to 1921, inclusive. 
The yields from these experiments are given in Table 37. Both 
Turkey and Kofod winter wheats were used, but only the results from 
Turkey are given. The experiment was not conducted in 1912, and 
the formaldehyde treatment or some physical injury to the grain in 
1918 caused a complete failure. From 1910 to 1916 single tenth-acre 
plats were used, and from 1917 to 1921 each rate was duplicated on 
twentieth-acre plats. The 7-peck and 8-peck sowings were added 
in 1917. 
It is evident from the data in Table 37 that as the rate of seeding 
was increased up to 6 pecks, the yields increased regularly. The 
7-peck and 8-peck sowings were not included a sufficient length of 
time for the results to be comparable with those from the lighter 
rates. A peculiar feature in respect to drought and stand occurred in 
1919. The season was one of the driest on record at Nephi, and yet 
the higher rates of seeding not only gave the largest yields, but dur- 
ing the whole summer the plants showed more vigor than plants on 
plats where seeding was at a lower rate. 
TaBLE 37.—Annual and average actual and net yields from Turkey winter wheat in 
rate-of-seeding experiments at Nephi, Utah, during the 9-year period from 1910 to 1921, 
inclusive. 
Yields per acre (bushels). 
Average. 
Rate of seeding. 
1910 | 1911 | 1913 | 1914 | 1915 | 1916 | 1917 | 1919 | 1920 | 1921 1910 | 1917 Net! 
to (0) 
1917 
to 
1921 | 1921 1921 
POEDOCKSH oe = eee seis 16.0 | 23.5 0 | 25.7 | 28.0 | 22.5 | 17.4 | 16.3 | 10.2 | 22.7 | 18.2 | 16.6| 16.1 
SaDOCK Ga eewe Ae, oe 19.3 | 21.3 | 2:7 | 32.8 | 30.8 | 20.2) 19.6 | A804 1527 127.5: || 20.8) |" 2022 a eone 
ASHOCKS 2. eS sae 19.3 |28.7.1. 3.0 | 38.7 | 34:5] 20.8 | 21.6°| 19:4 | 49:0'| 30:3 | 23.5 1 22;6r) egies 
ODPEOCKS) obese os See ORS oot 2:9 4452) 68723) \ 22. 10) 225352215 WAGED 873292650 je2on0. 23.7 
OH WOCKGeey ys sash eee 17.0 | 30.3. | 3.0 | 46.5 | 36.7 | 25.8 | 24.8 | 21.0] 20.3 | 40.3 | 26.6 | 26.6 | 25.1 
fipDOCK:Si tant Oa =r eee Se oe ag all oe eee | ome ORES 4 Ee 2653 | 2Zdeo MONO eas Zale 27.5 25.7 
(c) foyeTe) <a ante aera a | Rae mlb Any ah URN we tS Eine eee 2880 | 22505 902 Age 2eleae soe 28.3 26.3 
1 Quantity sown deducted from actual yield. 
DEPTH-OF-SEEDING EXPERIMENTS. 
RESULTS AT MORO. 
The stand of winter wheat may be greatly influenced by the depth 
of sowing. Better germination of winter wheat usually is obtained 
from shallow seeding, especially if the wheat is sown very late when 
the ground is cold. As it generally is desirable to have a compara- 
tively thick stand of winter wheat, farmers in the Columbia Basin 
section usually sow wheat from 14 to 3 inches deep. 
Experiments to determine the effect on yield of different depths of 
sowing winter wheat were conducted at Moro, Oreg., and Lind, Wash. 
In 1914 at Moro winter wheat was sown on August 26, before the 
autumn rains, 2 and 4 inches deep, in duplicate plats at 5 pecks per 
