46 
BULLETIN 1082, U. S. DEPARTMENT OF AGRICULTURE.* 
RESULTS IN TERMS OF ACRE YIELDS OF MATURE BULBS. 
It should be noted that the experimental acre at Bellingham, 
Wash., is shorter than it would be in commercial plantings on the 
right kind of soil. For this reason the results are conservative. The 
lands are approximately 400 feet long. The actual planted area on 
the acre consists of two plats varying from 42 to 45 feet wide and 380 
feet long, the remainder of the acre being occupied by ditches, road- 
ways, fence rows 12 feet inside of the line, etc. There are therefore on 
an acre 190 beds or 95 beds in each plat, each bed with its attendant 
path being 4 feet wide and extending across the plat. 
Table 7 gives an acre-performance turn-off for two years. Records 
of bulbs turned off relate to merchantable stocks except where the 
contrary is noted. In all cases the turn-off was picked out of the 
stock at cleaning time by hand, and no sizing was done on it. 
Table 7. — Plantings and yields of merchantable tulips on 1 acre at Bellingh 
in 1919 and 1920. 
Wash. 
Name of variety. 
Bulbs of 
all sizes 
planted 
in the 
previous 
year. 
Bulbs 
marketed. 
Name of variety. 
Bulbs of 
all sizes 
planted 
in the 
previous 
year. 
Bulbs 
marketed. 
Season of 1919: 
89, 198 
631 
64 
4,174 
67 
78,694 
488 
5,156 
7,593 
11,538 
10, 780 
9,657 
229 
300 
209 
438 
9,726 
1,359 
3,983 
5,654 
4,254 
19, 348 
16, 878 
193 
1,080 
9,002 
8,959 
124 
955 
76 
2,132 
27, 467 
758 
158 
37 
130 
877 
23,300 
Season of 1919— Continued. 
2,429 
5,188 
Yellow Prince (PI. XVI, 
Fig.l) 
2 200 
800 
Total 
339, 983 
84 
563 
147 
1,176 
784 
1,134 
1,061 
63 
1,310 
45,124 
756 
196 
1,099 
457 
1,024 
1,680 
994 
3,663 
504 
2,284 
49 
1,071 
1,127 
59, 619 
973 
1,029 
336 
19, 166 
448 
3,225 
3,694 
8,491 
86, 994 
22,000 
Season of 1920: 
Cottage Maid 
1,800 
3,694 
2,100 
1,300 
2,600 
Admiral Piet Hein 
Alitz 
600 
Crimson King 
Allard Pierson 
Andre Doria 
Duchess of Austria 
Anton Roozen 
Due van Thol 
Apollo 
450 
Joost van den Vondel 
Artus a 
22,800 
2,400 
Auber 
King of the Yellows 
Lac van Rhijn 
Aurora 
400 
1,700 
400 
0, 400 
2,500 
Aximensis 
500 
Baronne de la Tonnaye. . . 
900 
450 
Mon Tresor 
500 
Ophir d'Or... 
1,450 
300 
Prince of Austria 
4,200 
2,800 
Bridesmaid b 
1,000 
Caledonia 
500! 
Rosamundi Huykman . . . 
50,000 
400 
6,000 
Carinata Rubra 
400 
Thomas Moore (PI. XVI, 
Fig. 3)... 
500 
Titian 
Clara Butt b 
15,000 
Columbus 
Van der Neer 
Cottage Maid 
1,100 
Vermilion Brilliant 
Couleur Cramoisi 
3,500 
o In Artus, Cardinal's Hat, and Thomas Moore, an effort was made to turn off every bulb that would 
flower. The yield is, therefore, abnormally high. To arrive at the merchantable stocks in these varieties 
about 60 per cent must be deducted. 
b In Clara Butt, The Sultan, and Bridesmaid, small flowering bulbs were also included. A deduction 
here of 25 per cent will leave about the proper number of merchantable bulbs. 
