Search over 40,000 articles from the original, classic Encyclopedia Britannica, 11th Edition.
|
RADISH
, Raphanus sativus (nat. See also:order See also:Cruciferae), in See also:botany, a fleshy-rooted See also:annual, unknown in the See also:wild See also:state
.
Some varieties of the wild radish, R
.
Raphanistrum, however, met with on the Mediterranean coasts, come so near to it as to suggest that it may possibly be a cultivated See also:race of the same See also:species
.
It is very popular as a raw See also:salad
.
There are-See also:RADIUM 807
two See also:principal forms, the spindle-rooted and the See also:turnip-rooted
.
The radish succeeds in any well-worked not too heavy See also:garden See also:soil, but requires a warm, sheltered situation
.
The See also:seed is generally sown broadcast, in beds 4 to 5 ft. wide, with alleys between, the beds requiring to be netted over to protect them from birds
.
The earliest See also:crop may be sown about the See also:middle of See also:December, the seed-beds being at once covered with See also:litter, which should not be removed till the See also:plants come up, and then only in the daytime, and when there is no See also:frost
.
If the crop succeeds, which depends on the state of the See also:weather, it will be in use about the beginning of See also:
The roots become See also:fit for use during the autumn
.
For winter use they should be taken up before severe frost sets in, and stored in dry See also:sand
.
Radishes, like other fleshy roots, are attacked by See also:insects, the most dangerous being the larvae of several species of See also:fly, especially the radish fly (Anthomyia radicum)
.
The most effectual means of destroying these is by watering the plants with a dilute See also:solution of carbolic See also:acid, or much diluted See also:gas-See also:water; or gas-See also:lime may be sprinkled along the rows
.
Forcing.—To obtain early radishes a sowing in the See also:British Isles should be made about the beginning of November, and continued fortnightly till the middle or end of February; the crop will generally be fit for use about six weeks after sowing
.
The seed should be sown in See also:light See also:rich soil, 8 or 9 in. thick, on a moderate hotbed, or in a See also:pit with a temperature of from 55° to 65°
.
See also:Gentle waterings must be given, and See also:air admitted at every favourable opportunity; but the sashes must be protected at See also:night and in frosty weather with See also:straw mats or other materials
.
Some of these crops are often grown with forced potatoes
.
The best forcing sorts are See also:Wood's early See also:frame, and the early See also:rose globe, early See also:dwarf-See also:top See also:scarlet turnip, and early dwarf-top See also: |
|
|
[back] RADIOMETER |
[next] RADIUM (from Lat. radius, ray) |
There are no comments yet for this article.
Do not copy, download, transfer, or otherwise replicate the site content in whole or in part.
Links to articles and home page are encouraged.