DRY-LAND GARDENING AT MANDAN, N. DAK. 
9 
Table 3. — Data in regard to planting, yield, etc., of vegetables in the acre garden 
at the Northern Great Plains Field Station, Mandan, N. Dak., from 1920 to 
1924, inclusive — Continued 
Year 
Date 
planted 
Row 
length 
or 
number 
of hills 
(feet) 
Planting 
distance 
(inches) 
Stand 
(per 
cent) 
Date 
when 
first 
ready 
Yield 
Vegetable, class, and 
variety 
Total 
Per 100 
feet of 
row, or 
10 hills 
Unit of 
measure 
Tomato: 
1920 
1921 
1922 
1923 
1924 
1920 
1921 
1922 
1923 
1924 
1920 
1921 
1922 
1923 
1924 
1920 
1921 
1922 
1923 
1924 
1920 
1921 
1922 
1923 
1924 
1920 
1921 
1922 
1923 
1924 
1920 
1921 
1922 
1923 
1924 
Mar. 15 
...do 
Mar. 20 
Mar. 15 
...do 
May 10 
...do 
...do 
....do 
May 14 
May 10 
...do 
...do 
...do 
May 14 
May 10 
...do 
...do 
...do 
May 14 
May 10 
...do 
...do 
—do 
May 14 
May 10 
...do 
...do 
...do 
May 14 
May 10 
...do 
...do 
...do 
May 14 
480 
480 
480 
480 
480 
3G by 30. 
...do 
...do 
...do 
...do 
98 
98 
100 
100 
100 
65 
100 
100 
100 
75 
50 
80 
100 
100 
85 
100 
85 
100 
100 
98 
100 
7 
90 
75 
50 
100 

100 
100 
90 
75 
85 
100 
100 
65 
July 22 
July 15 
July 28 
July 19 
Aug. 9 
Aug. 7 
Aug. 9 
Aug. 1 
July 14 
Aug. 14 
Sept. 13 
Aug. 20 
Aug. 29 
...do 
Sept. 27 
Sept. 28 
Sept. 21 
Sept. 8 
Sept. 20 
Sept. 28 
July 25 
Aug. 2 
July 31 
Aug. 17 
Aug. 11 
Sept. 18 
458 
354 
954 
785 
672 
45 
75 
151 
643 
150 
18 
28 
42 
91 
18 
672 
652 
651 
600 
1,281 
28 
6 
40 
14 
24 
1,485 

560 
572 
900 
368 
( 5 ) 
600 
6 180 
«250 
95.4 
73.8 
198.8 
163.5 
140.0 
30.0 
53.6 
100.7 
428.7 
100.0 
18.0 
18.7 
28.0 
60.7 
12.0 
240.0 
232.9 
232.5 
214.3 
457.5 
18.7 
4.3 
40.0 
14.0 
24.0 
530.4 

200.0 
204.3 
321.4 
153.3 
~~256.~6" 
75.0 
104.2 
Pounds. 
Sunnybrook Earli- 
ana. 
Do... 
Do. 
Do. 
Do... 
Do. 
Do -. 
Do. 
Cucumbers: 
Davis Perfect 
Fordhook Famous... 
Do 
Hills 
15 
14 
15 
15 
15 
10 
15 
15 
15 
15 
28 
28 
28 
28 
28 
15 
14 
10 
10 
10 
28 
28 
28 
28 
28 
24 
24 
24 
24 
24 
Feet 
6 by 4... 
...do 
...do 
...do 
...do 
6 by 4... 
...do 
...do 
...do 
— do..... 
9 by 8... 
...do 
...do 
...do 
...do 
6 by 4... 
...do 
...do 
...do 
...do 
9 by 8... 
...do 
...do 
...do 
...do 
...do 
...do 
...do 
...do 
...do 
Fruits. 
Pounds. 
Do. 
Do 
Do. 
Do 
Do. 
Muskmelons: 
Emerald Gem 
Do 
Fruits. 
Do. 
Do 
Do. 
Do 
Do. 
Do 
Do. 
Pumpkin: 
Sugar.. .. 
Pounds. 
Do 
Do. 
Do.... 
Do. 
Do 
Do. 
Do.. 
Do. 
Squash, summer: 
Cocozelle... . 
Fruits. 
Do 
Do. 
Do 
Do. 
Do 
Do. 
Do 
Do. 
Squash, winter: 
Golden Hubbard 
Do 
Pounds. 
Do 
Sept. 8 
Sept. 20 
Sept. 28 
Sept. 1 
Do. 
Do 
Do. 
Do 
Do. 
Watermelons: 
Fordhook Early 
Do 
Do. 
Do 
Sept. 2 
Sept. 13 
Sept. 20 
Do. 
Do 
Do. 
Do 
Do. 
s Yield good, but crop was stolen. 
9 Part of the crop was lost by trespass. 
Some vegetables succeeded better than others, and some were 
better in some seasons than they were in others, but the only failure 
due to growing conditions during the five years was with late-planted 
cauliflower. There were some failures in obtaining stands, and some 
yields were affected considerably by impure, mixed, or mislabeled 
seed. Some crops were lost in whole or in part, and the determination 
of the yields was interfered with by trespass. 
The favorable conditions afforded by the rotation system resulted 
in distinct improvement in the quality and size of the products. 
This result was more noticeable than increases in yields, as the yields 
were determined to a large extent by seasonal conditions. 
Little trouble has been experienced with insects and plant diseases. 
The insects which it became necessary to combat were the pale west- 
ern cutworm (Agrotis spp.), the green cabbage worm (Pontia rapae) , 
the striped cucumber beetle (Diabrotica vittata) , blister beetles (Lytta 
spp.), and the Colorado striped potato beetle (Leptinotarsa decemlineata). 
