. The chemistry of farm practice. Agricultural chemistry. 36 CHEMISTRY OF FARM PRACTICE tallized form of carbon. Most of anthracite, bituminous coal, and charcoal is carbon. Graphite is almost pure carbon. The three compounds of carbon that interest us most from an agricultural view-point are carbon dioxide, the carbonates, and the carbohydrates. The soil water con- tains a certain amount of carbon dioxide, which is produced through the decay of organic matter in the earth. The higher the per cent of carbon dioxide in the water, the greater will be its solvent power. Thus, water percolating. O
. The chemistry of farm practice. Agricultural chemistry. 36 CHEMISTRY OF FARM PRACTICE tallized form of carbon. Most of anthracite, bituminous coal, and charcoal is carbon. Graphite is almost pure carbon. The three compounds of carbon that interest us most from an agricultural view-point are carbon dioxide, the carbonates, and the carbohydrates. The soil water con- tains a certain amount of carbon dioxide, which is produced through the decay of organic matter in the earth. The higher the per cent of carbon dioxide in the water, the greater will be its solvent power. Thus, water percolating. OJPPER EPIDERMIS LOWER EPIDERMIS CROSS SECTION Fig. 8.—Structure of a leaf. The stomata are shown in the lower epidermis and in the cross-section. through the soil and absorbing carbon dioxide will dissolve mineral matter and become hard water. The carbonates are compounds of carbon dioxide and a basic anhydride. Thus, CaO+C02 = CaC03. Carbon- ate of lime, CaC03, is agriculturally the most important of the carbonates. The carbohydrates contain carbon and hydrogen and oxygen, the latter two being in the pro- portion of water, H2O. The carbohydrates are formed in plants by the condensation of formic aldehyde. Formic aldehyde is formed in the green part of plants in the presence of sunlight, by the union of carbon dioxide, which enters through the stomata or breathing pores of the leaf of the. 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 Keitt, Thomas Ellison. [from old catalog]. New York, J. Wiley & sons, inc. ; [etc. , etc. ]
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectagriculturalchemistr
