EXTRACTS—HORTICULTURE. 
405 
PART II. 
REVIEWS AND EXTRACTS. 
EXTRACTS. 
HORTICULTURAL INTELLIGENCE. 
On Irrigating Gardens by Tanks or Ponds, —The garden of Thomas 
A. Knight, Esq. is supplied with water by springs, which rise in a more elevated 
situation, and thus afford him the means of making a small pond, from which 
he can cause water to flow over every part of the garden whenever he wishes. 
He thus irrigates his strawberry beds when in flower, and plants of other kinds, 
throughout the summer. A stream is caused to flow down the rows of celery, 
brocoli, &c. with very great advantage. But the most extensive and beneficial 
use made of it, is to w ater his late crops of peas. By this means the ill effects of 
mildew are almost wholly prevented, and the result is a good supply of peas 
throughout October. When water is delivered in the usual quantity from a water¬ 
ing pot, its effects for a short time are almost always beneficial; but if water be 
not continued regularly, injurious consequences frequently follow; for the roots 
of plants extend themselves most rapidly, wherever they find moisture and food ; 
and if the surface alone be wetted, the roots extend themselves only superficially, 
and the plants consequently become more subject to injury from drought, than 
they would have been if no water had been given to them. When, on the con¬ 
trary, the soil is irrigated in the manner above recommended, it is wetted to a 
great depth; and a single watering, once in eight or ten days, is, in almost all 
cases, fully sufficient.— Trans. Hort. Soc. Part 4. 
Culture of the Vine. —The principal objectionable point to the long run¬ 
ning system of cutting and training, is, that in an early forcing house, where the 
shoot has been laid in its whole length, of perhaps from 15 to 50 buds, there is 
great uncertainty as to such shoot bursting its eyes from one end to the other; 
nothing being more common than the destitution of both fruit and foliage in the 
lower part of the vine, while the upper part is crowded to excess with both. 
Authors have recommended different operations for the prevention of this evil, 
such as serpentining, disbudding, &c., and the same have been acted upon by 
many practitioners, but without success. It is w-ell known that every shoot pos¬ 
sesses a natural inclination to break its extreme buds first, this is occasioned by 
the upper part of the vine when tied up being at a greater distance from the glass 
than the lower part, and consequently exposed to one and a half or two degrees 
more heat than the low'er part. To counteract this, fix the shoot at about 10^ 
from the glass at its base, bringing its extreme end close to the glass by a gradual 
inclination, to about three parts of its length, and run the remaining part in close 
contact with the glass to its end. When all the lower buds have broken, the 
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