. Productive soils; the fundamentals of successful soil management and profitable crop production. Soils. Fig. 153.—Soil acidity caused by mineral acid. Sulfide sludge washed over bottom-land. Weathering of sludge destroyed the grass. (Wisconsin.). Fig. 154.—A limestone quarry. A source of agricultural lime. coarse particles give to the soil a reserve of lime carbonate. The best grades of limestone contain from 90 to 100 per cent Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of
. Productive soils; the fundamentals of successful soil management and profitable crop production. Soils. Fig. 153.—Soil acidity caused by mineral acid. Sulfide sludge washed over bottom-land. Weathering of sludge destroyed the grass. (Wisconsin.). Fig. 154.—A limestone quarry. A source of agricultural lime. coarse particles give to the soil a reserve of lime carbonate. The best grades of limestone contain from 90 to 100 per cent 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
