. Productive soils; the fundamentals of successful soil management and profitable crop production. Soils. FiQ. 85.—" Striking out a land " with a two-bottom gang plow. Dynamiting Soils.—Dynamite has been used in some places to break up and loosen impervious subsoils to facilitate the entrance of air, water and roots. Though it proves a good practice, when necessary in tree planting, its general use is still an open question.^ More About Plows and Plowing.—Special plows are designed for hillside plowing (Fig. 84). The bottoms of the walking types swivel for right- and left-hand furrow
. Productive soils; the fundamentals of successful soil management and profitable crop production. Soils. FiQ. 85.—" Striking out a land " with a two-bottom gang plow. Dynamiting Soils.—Dynamite has been used in some places to break up and loosen impervious subsoils to facilitate the entrance of air, water and roots. Though it proves a good practice, when necessary in tree planting, its general use is still an open question.^ More About Plows and Plowing.—Special plows are designed for hillside plowing (Fig. 84). The bottoms of the walking types swivel for right- and left-hand furrows, and the sulky types consist 2 Subsoiling, deep tilling, and soil dynamiting are all operations that increase the expense of production over that of ordinary plowing. Experi- ments conducted in both dry-land and humid farming all lead to the conclusion that yields cannot be increased nor the effect of drought overcome by tillage below the depth of ordinary plowing.—Jour. Agril. Research^ Sept. 9, 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
