8 BULLETIN 238, XT. S. DEPARTMENT OF AGRICULTURE. 
Table III. — Comparison of the harvest stands and the yields of sugar beets for the seasons 
of 1910, 1911, and 1912. 
Refer- 
ence No. 
Plat and season. 
Notes. 
Harvest 
stand. 
Yield per 
acre. 
1 
Group 1. — Deep sandy loam: 
PlatB (1911) 
Deep, well-manured soil; crops rotated; 
owned and worked by experienced 
truck farmer. 
Rather deeply worked, well-manured soil, 
in good tilth; crops rotated; Nos. 2 and 
5 in same field— very uniform, contigu- 
ous to the field in which Nos. 4 and 6 
are located. 
Deeply worked soil, in fine tilth; crops ro- 
tated; owner's labor and supervision. 
Very deeply worked, well-manured soil; 
crops rotated; blocking and thinning 
done by contract, all other labor done 
by owner; Nos. 4 and 6 in same field- 
very uniform. 
Same as No. 2, except that seed was sown 
rather deeper, resulting in more damp- 
ing-off in the spring. 
Same as No. 4, except that seed was sown 
rather deeper, resulting in more damp- 
ing-off in the spring. 
Soil hot plowed so deeply as in Nos. 2, 4, 
5, and 6, but more sandy; owner's labor 
and supervision. 
do.. 
Per cent. 
76.83 
50.54 
49.66 
46.99 
38.57 
37.19 
77.11 
68.20 
64.41 
60.26 
59.82 
52.48 
63. 13 
60.12 
52.30 
48.12 
45.71 
45.62 
45.51 
39.58 
37.98 
29.55 
Tons. 
30 532 
2 
Plat 3 (1912) 
23 696 
3 
Plat D (1911) 
26.773 
4 
Plat 1 (1912) 
27 524 
5 
■Plat 4 (1912) 
19. 431 
6 
Plat 2 (1912) 
19 406 
7 
Group 2. — Very light sandy 
loam: 
Plat 5 (1912) 
23. 631 
8 
Plat 6 (1912).. 
20 853 
9. 
Plat A (1911) 
Very badly thinned, spacing irregular, 
6.89 per cent of the plants in pairs; 
choked with weeds; labor mostly done 
by young boys without supervision. 
Plants tardy in the spring, owing to late 
sowing; soil in good tilth; owner's labor; 
good farmer. 
Second sowing; plants rather tardy in 
the spring; soil in good tilth; owner's 
labor; good farmer. 
Much of the work done by boys, with lit- 
tle supervision. 
Ground not plowed, only disked and har- 
rowed; severe hailstorm in mid-August 
defoliated the beets. 
Owner's labor; conditions about normal. . . 
Land in good tilth; too much contract 
labor; 2.56 per cent of the plants in pairs. 
Sowed and thinned rather late, thinning 
badly done; 9.82 per cent of plants in 
pairs; contract labor. 
Contract labor; soil plowed about 8 inches 
deep; other conditions normal. 
Soil in good tilth, heavily manured, 
deeply plowed; Japanese working for 
themselves. 
Like No. 17 
13 391 
10 
Plat 8 (1912) 
17. 236 
11 
Plat 7 (1912) 
17. 068 
12.. 
Plat 9 (1912) 
13. 926 
13 
Group 3.— Heavy, black 
loam: 
Plat 10 (1912)... 
9.558 
14.. 
Plat 11 (1912) 
15. 253 
15.. .. 
Plat E (1911) 
15. 497 
16.. 
PlatF (1911) 
12.325 
17 
Plat 1 (1910) 
13. 032 
18 
Plat G (1911) 
17.306 
19... 
Plat 2 (1910) 
13. 469 
20 
Plat 3 (1910) 
..do 
11.586 
21 
Plat 12 (1912) 
Contract labor; conditions about normal. . 
Contract labor; 2.03 per cent loss by cutting 
an irrigation ditch through the plat; 
other conditions normal. 
11.733 
22 
Plat 13 (1912) 
10. 314 
Mean of group 1 
49.96 
63.71 
46.76 
52.26 
24. 562 
Mean of group 2 
17. 6S4 
Mean of group 3 
13.007 
Mean of all plats 
17. 432 
SOURCES OF LOSS IN STAND. 
Sources of losses of great magnitude in the stand are brought to 
light by an examination of the data presented in Table II. The 
factors directly causing a decrease in the number of plants to the 
acre were found to be susceptible of arrangement into three groups, 
