A Brief Compend of American Agriculture

Paperback | July 9, 2012

byRichard L. Allen

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1846 edition. Excerpt: ...district in Great Britain; but its general introduction did not take place till the beginning of the present century. The system of rotation is one of the first and most important principles of general husbandry, and it cannot he omitted without manifest disadvantage and loss. The place of rotation was formerly supplied by naktul fallows. This practice consists, as we have before shown, in giving the soil an occasional or periodical rest, in which no crop is taken off, and the soil is allowed to produce just what it pleases or nothing at all, for one or more years, when it is refreshed and invigorated for the production of its accustomed useful crops. This system, it will be perceived, implies the loss of the income of the soil for a certain portion of the time, and it can be tolerated only where there is more land than can be cultivated. Modern agricultural science has detected, in part at least, the true theory of the necessity for rotation. It has been discovered that every crop robs the soil of a portion of its elements, (fifteen or sixteen elementary substances combined in various forms and proportions,) and that no two dissimilar crops abstract these elements or their compounds from the soil in the same proportions. Thus, if we consider the amount of the salts taken out of the soil by a crop of turneps amounting to 5 tons of roots per acre; of barley, 38 bushels; one ton each of dry clover or rye-grass; and of wheat, 25 bushels, we shall find the great disproportions of the various elements, which the different vegetables have appropriated. As given by Johnston they will be in pounds as follows: Tnraw r BARLIY Red R,. WHSAT. Roots. 'G,,in.Str-iw, Cloter.Grass. Grain. Straw.Total. Potash..I'JSlf "5X545 45.0 28.5 3.3 'o '233.¥'...

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1846 edition. Excerpt: ...district in Great Britain; but its general introduction did not take place till the beginning of the present century. T...

Format:PaperbackDimensions:164 pages, 9.69 × 7.44 × 0.35 inPublished:July 9, 2012Publisher:General Books LLCLanguage:English

The following ISBNs are associated with this title:

ISBN - 10:0217147801

ISBN - 13:9780217147804

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