MISCELLANEOUS VEGETABLES 359 
small pots and then shifted to larger ones when the roots 
become crowded. A common practice is to plant in 
4-inch pots and then to shift to the beds or benches. 
One plant of a pole bean in each place seems to produce 
a larger crop than two plants. The pole varieties may 
be supported by trellises, twine or light stakes. 
In general, greenhouse beans require about the same 
cultural conditions as the cucumber. The soil must be 
rich, but it should not contain an excessive supply of 
quickly available nitrogen. Fresh stable manures should 
never be employed and rotten manures should be well 
mixed with the soil. Liquid cow manure is applied by 
some growers after the pods are formed. 
A night temperature of 60 degrees will do, but 5 to 10 
degrees higher will give better results, and the day tem- 
perature should range between 70 and 80 degrees. 
Careful ventilation is necessary. Sufficient water should 
be applied to keep the soil moist, and a moist atmosphere 
is also desirable. When the plants are flowering, a fairly 
dry atmosphere will aid the self-fertile flowers to set a 
good number of pods. 
The red spider, the aphis and the white fly are the 
most serious pests of the bean when grown as a forcing 
crop. 
Growers cannot count on more than two or three 
pickings from greenhouse plants. The pods may be tied 
in bundles of 25 to 50 for marketing, or the spring crop 
can be sold in bulk. 
BEET 
The beet is grown in greenhouses, to a limited extent, 
both for greens and for the roots. The soil should be 
rich and friable. Temperatures which are suitable for 
lettuce will meet the requirements of the beet, though it 
grows more rapidly at higher temperatures. 
