280 VEGETABLE FORCING 
When grown with carnations, a common distance is 
20 by 20, or three rows on benches 4 feet wide. Another 
well-known Ohio grower plants 4 by 1 foot apart, and a 
Grand Rapids grower 3%4 by 1. Some growers are pleased 
with the following hexagonal plan which gives each plant 
the maximum amount of space in every direction: 
x x x x x 
x Xx X x x 
_ Planting.—As previously stated in this chapter, the 
plants should not be allowed to become pot-bound before 
they are shifted or transferred to the beds. The plants 
may be set a trifle deeper than they stood in the pots, and 
it is generally desirable to water the beds after they are 
filled with plants. See page 278 for dates on which to 
plant. 
Intercropping.—Tomato plants soon develop a large 
amount of foliage which retards the development of 
smaller crops, such as lettuce and radishes, so that they 
are not very well adapted to companion cropping, except 
when they follow carnations. See Chapter XXI for data 
on systems of cropping. 
Training—When tomatoes are produced under glass 
there must be some means of regulating the habit of 
growth. Numerous experiments have been made with a 
view to determining the best system of training. In 
most of the trials, the plants have been trained to one, 
two and three stems, respectively. Perhaps the most 
extensive work along this line was conducted by the New 
York station. Beach, in drawing conclusions in Bul- 
letin 123, states: “Single-stem training (as seen in Figs. 
90, 91 and 92) is clearly superior to three-stem training 
for forcing tomatoes in winter—in this climate. The 
superiority is seen in the larger yield of early ripening 
