The Portland daily press. [volume] (Portland, Me.) 1862-1921, 1895-09-21
VEGETABLES UNDER GLASS.
AS Grown by Successful Truck Gardeners
In the Vicinity OF Boston.

AS Grown by Successful Truck Gardeners
In the Vicinity OF Boston.
At a meeting Of the Massachusetts,.
Horticultural society William d. Phil
brick read paper on vegetables under
glass in which thasestatezaent occurred:
The Vegetables mostly forced. for
market at Present. are. ID ttheirlorder Of
Importance, lettuce, cuoumhers. rad
ishes, danaalions. haets,ana haet greens,
parsley, mint and rsss are
also largely forced, ibnt notunder glass.
Dark pits4are used for this purpose
Lettuce is by far She most largely grown
and used of all the forced vegetables.
Most Of the greenhouses qprasuc two OF
three successive crops OF lettuce each
winter, followed by a crop Of cucumbers
in spring and summer. 3s
A common difficulty is maintaining
a suitable degree Of temperature and
moisture. Other difficulties include the
treatment of insects and fungous dis
eases. Good crops of both lettuce and
cucumbers are usually grown in new
greenhouse the first year, but the sue
ceeding crops are more subject to dis
ease,.s This suggests the Importance Of
the rotation Of crops when it is practi-
cable in order to avoid the spores OF
fungi which accumulate rapidly where
repeated crops of The same vegetable are
grown. "a
Under the impression that cucumbers
and LETTUCE require bottom heat, the
pipes were first placed under the beds,
which proved al mistake. The pipes
must be either in the alleys or overhead,
and the beds built upon the ground
Mr.. PhilbriGk added that certain vege-
tables can be grown together success
fully, but. he prefers to grow only one
kind at a time sin one house. Amateur
gardeners, however, often wish to grow
several vegetables together. Dandelions
will thrive in a temperature Of 40 de-
grees at night; lettuce from 45 degrees
to 30 degrees. Yet dandelions, lettuce
and radishes y can be grown together
easily. = Cucumbers require more heat
Still, IN their younger stages of growth
radlshes, or beets may be grown with
them, but when theybegin to bear fruit
they demand so much more heat, as
we'll as more room, that radishes cannot
succeed. Tomatoes, like cucumbers,
must have a high temperature. In grow
ing cucumbers under glass, one great
difficulty is in fertilizing the flowers. Ii
bees are about the premises, they will
perform this work, but otherwise hand
fertilization will be imperative.
Lettuce will head when the tempera-
ture runs up 80 degrees in the sunshine,
but high temperature at night must be
guarded against. Lettuce is also liable
to be burned at so degrees temperature
ID the daytime, but this can generally
be prevented by wetting down the
paths. In doing this, however. care
must be taken not to wet the plants.
They must never be wet when the sun
IS shining hot upon them. In watering
these plants it does not matter whether
1t be done in the morning or the after
noon, provided the water is quickly
dried Off the plants, When new bed
for a crop of lettuce has been prepared
i'll house, it should be thoroughly wet
down three or four hours before plant
ing, but the soil should not be muddy
when tho plants are set. After the
planting is completed give light wa
tering. Where d bed is built two on
three feet high, with an air space be-
meath, it requires more mastering.