WHEAT PRODUCTION ON DRY LANDS. 5T 
On account of its earlier maturity early-sown spring grain usually 
outyields late-sown grain in the Columbia Basin district. Comparing 
the rates of sowing, it will be noted from Table 31 that the highest 
average net yield was obtained from the 5-peck sowing on the early 
_ date and from the 3-peck sowing on the late date. As with the winter 
_ wheat the difference in the yields obtained from the varying rates 
is not great except in the case of late sowing, where the thinner rates 
consistently give the higher yields. 
TABLE 32.—Annual and average yields of Marquis spring wheat sown at Moro, Oreg., at 
various rates per acre in the 5-year period from 1917 to 1921, inclusive. 
Annual, total, and average yields per acre (bushels). 
Rate of seeding. | Average. 
1917 1918 | 1919 1920 1921 | Total. 5 
| | Actual. Net. 
| 
| Apr. é. | Apr.i11.| Mar. 25.| Apr. 2. | Mar. 30. Apr. 8. 
_ Ee ee 16.0 14.9 | 18.7 18.6 20.3 | 88. 5 17.7 16.7 
| Sa ee | 18.7 | 18.2 | 18.9 16.5 19.7 | 92.0 18. 4 17.2 
eee 17.9 | 18.6 | 18.7 20. 0 20.3 95.5 19.1 17.6 
ee 21.6 | 18.6 | 20.0 17.8 18.9 | 96.9 19. 4 17.6 
In Table 32 data are given on a rate-of-sowing experiment with 
_ early-sown Marquis spring wheat for the years 1917 to 1921, inclusive. 
_ The results shown in the table are the yields obtained from single 
twentieth-acre plats each year. The results of the four years indicate 
a slight advantage from the heaviest rates used, viz, 7 and 8 pecks 
per acre. 
RESULTS AT LIND. 
WINTER WHEAT. 
Because of the very unfavorable fall conditions which prevailed at 
Lind experiments on rates and dates of seeding with winter wheat 
have been very unsatisfactory. The most that can be learned from 
} the date-of-seeding experiments is the comparative merits of seeding 
_ in the dry soil before rains and waiting until after the rains before 
seeding. Results of experiments on dates of seeding winter wheat 
are given in Table 33. 
TABLE 33.—Annual yields and stands of Turkey wheat sown at the rate of 60 pounds per 
acre in date-of-seeding experiments at Lind, Wash., during the 3-year period from 1919 to 
1921, inclusive. 
Stands (plants per acre) and yields per acre. 
Time of seeding. 1919 1920 1921 
7 1S eee 220,000; 15.8) 128,000 9.2 527,000 12.2 
a eee eee | 380, 000 16.9 164,000 9.8 776,000 11.2 
0.5 941,000 1.5 
The highest average yields were obtained from the early sowing. 
