. Allevamento britannico; esibendo le pratiche agricole in varie parti del Regno Unito. Agricoltura -- Gran Bretagna; cbk. La semina. 27 Essi non perfetto un quantitativo sufficiente per gli scopi generali di propa- chiesta o accidentali sono solo le varietà di una specie di perdere i loro caratteri di distinzione quando riprodotto dal seme. I seguenti modi di pro- pagation si trovano efficace quando i semi non possono essere ottenuti : prima da fuckers, seconda da strati, terzo da talee, e quarto mediante innesto. 1st. Ventose sono germogli prodotti dalla creeping rof)ts di un albero che, quando separato dal

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. British husbandry; exhibiting the farming practice in various parts of the United Kingdom. Agriculture -- Great Britain; cbk. PLANTING. 27 they do not perfect a sufficient quantity for the general purposes of propa- gation, or are accidental varieties only of a species losing their characters of distinction when reproduced from seed. The following modes of pro- pagation are found effectual when seeds cannot be obtained : first by fuckers, second by layers, third by cuttings, and fourth by grafting. 1st. Suckers are shoots produced by the creeping rof)ts of a tree, which, when separated from the parent root and transplanted, become perfect trees. They are generally sufficiently rooted in the first season of their production, and they should not be suffered to remain longer than two seasons attached to the root of the tree ; for if continued longer, the sup- port they derive from the parent root prevents them from making inde- pendent roots of their own in such abundance as they do when separated or taken up at an earlier period. The spring is the most proper season for taking them from the parent roots. When a sufficient number of rootlets appear on the sucker, no part of the root from whence the sucker sprang should be left attached to it; but where the proper rootlets are deficient in number, a small portion of the parent root may be left with advantage. The plants should be planted in rows in fresh soil, and treated in all re- spects afterwards as directed for seedling transplanted trees. The kinds of trees chiefly reared in this mode are : The abele tree, Populus alba Common white poplar, Populus canescens. Aspen, Populus tremula. Chinese ailanthus, Ailanthus glandulosa. The first three kinds may also be propagated by layers. 2nd. Layers.—The process o{layering is well known: it consists in bend- ing a young branch {a, Jig. 2) into the soil to a certain depth, and elevatiiio; the top part of it out of the soil in an upright direction ; in time the burietl part

Parole chiave associate all'immagine

• bookcentury1800
• bookdecade1840
• bookpublisherlon
• booksubjectcbk