. Productive soils; the fundamentals of successful soil management and profitable crop production. Soils. ^/^fy\ ar Cork mt/? two /?o/e>s "Seed/mas fasfe/^ecf Fig 19 —A plant culture in a fruit jar. the plant grows into a real manufacturing establishment, most wonderful and mysterious throughout. The plant cells correspond to the departments—the leaf cells being the most important; the content of the cells, chlorophyll,^ etc., represents the machinery; the raw materials taken in are carbon dioxide, water and salts (Fig. 19); the power is the energy of sunlight; and the products are foo
. Productive soils; the fundamentals of successful soil management and profitable crop production. Soils. ^/^fy\ ar Cork mt/? two /?o/e>s "Seed/mas fasfe/^ecf Fig 19 —A plant culture in a fruit jar. the plant grows into a real manufacturing establishment, most wonderful and mysterious throughout. The plant cells correspond to the departments—the leaf cells being the most important; the content of the cells, chlorophyll,^ etc., represents the machinery; the raw materials taken in are carbon dioxide, water and salts (Fig. 19); the power is the energy of sunlight; and the products are foods, of which there are three classes—protein, carbohydrates and fats. The common carbohydrates aie sugars and starches. Conditions and Requirements Dtiring Vegetative Period.—In order that the average farm plant might carry on all its activities 1 Only a comparatively small amount of the water taken in by plants is used in the manufacture of foods—most of it is transpired. 2 Chlorophyll is the substance in plants that gives them their green 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 Weir, Wilbert Walter, 1882-. Philadelphia London, J. B. Lippincott company
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectsoils, bookyear1920
