. How crops grow. A treatise on the chemical composition, structure, and life of the plant, for all students of agriculture ... Agricultural chemistry; Growth (Plants). 266 HOW CROPS GEOW. represented in fig. 46, wliich infests so many fanns. Each node of the root-stock, being usually supplied with roots, and having latent buds, is ready to become an independ- ent growth the moment it is detached from its parent plant. In this way quack-grass becomes especially troub-. Fig. 46. lesome to the farmer, for, within certain limits, the more he harrows the fields where it has obtained a footing, the
. How crops grow. A treatise on the chemical composition, structure, and life of the plant, for all students of agriculture ... Agricultural chemistry; Growth (Plants). 266 HOW CROPS GEOW. represented in fig. 46, wliich infests so many fanns. Each node of the root-stock, being usually supplied with roots, and having latent buds, is ready to become an independ- ent growth the moment it is detached from its parent plant. In this way quack-grass becomes especially troub-. Fig. 46. lesome to the farmer, for, within certain limits, the more he harrows the fields where it has obtained a footing, the more does it spread and multiply. Suckers.—The rose, raspberry, and cherry, are examples of plants which send out subterranean branches, analogous to the root-stock. These coming to the surface, become aerial stems, and are then termed sucker's. The Tubers of most agricultural plants are fleshy en- largements of the extremities of subterranea,n stems. Their eyes are the points where the buds exist, usually three together, and where minute scales — rudimentary leaves—may be observed. The common potato and arti- choke are instances of tubers. Tubers serve excellently for propagation. Each eye, or bud, may become a new plant. From the quantity of starch, etc., accumulated in them, they are of great importance as food. The number of tubers produced by a potato-plant appears to be inn creased by planting originally at a considerable depth, or by " hillmg up " earth around the base of the aerial stems during the early stages of its growth. Digitized by Microsoft®. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Johnson, Samuel William, 1830-1909. New York, O. Judd & company
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Keywords: ., bookcentury1800, bookdecade1860, booksubjectagricul, bookyear1868
