. The chemistry of agriculture, for students and farmers. Agricultural chemistry. LIME 247 But whatever the cause may be, permanent soil acid, as a rule, should be neutralized by certain calcium compounds, loosely called "; 187. Lime.—The chemical term lime is used for calcium oxide, CaO. Agriculturally, however, lime is any compound of calcium which will neutralize acids. The compounds having this power are the carbonate, hydroxide, and Fig. 60.—Limestone quarry. Department of Experimental Agricultural Chemistry, Pennsylvania Station. (a) Calcium Carbonate, CaCOs.—This
. The chemistry of agriculture, for students and farmers. Agricultural chemistry. LIME 247 But whatever the cause may be, permanent soil acid, as a rule, should be neutralized by certain calcium compounds, loosely called "; 187. Lime.—The chemical term lime is used for calcium oxide, CaO. Agriculturally, however, lime is any compound of calcium which will neutralize acids. The compounds having this power are the carbonate, hydroxide, and Fig. 60.—Limestone quarry. Department of Experimental Agricultural Chemistry, Pennsylvania Station. (a) Calcium Carbonate, CaCOs.—This form of calcium occurs in limestone, oyster shells, shell marl, and chalk, all of which when pure may contain as much as 95 to 98 per cent, calcium carbonate, but frequently contain less (Fig. 60 shows a limestone quarry). Limestone very often is composed of magnesium carbonate as well as calcium carbonate, in amounts varying from a few per cent, up to 45 per cent. When the latter content of magnesium car- bonate is present the mineral is called dolomite. To be used on the soil all forms of calcium carbonate should be ground very fine, preferably so that 75 per cent, at least passes a hundred mesh sieve. It must be remembered that it is 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 Stoddart, Charles William, 1877-. Philadelphia, New York, Lea & Febiger
Size: 1865px × 1340px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookleafnumber24, booksubjectagriculturalchemistry, bookyear1915
