. Productive soils; the fundamentals of successful soil management and profitable crop production. Soils. OPEN DITCHES 115 feet wide at the top (Fig. 48). It is used to remove surface water during heavy rains and melting snows. Such a run may be con- veniently used to protect depressions, and to prevent surface water from entering a lower area. These drains should be kept well sodded. As a rule a drainage system is not complete unless surface-runs are provided to take care of the excess water during flood flow. open Ditches.—Frequently small open ditches about 3 to 5 feet deep are employed, in
. Productive soils; the fundamentals of successful soil management and profitable crop production. Soils. OPEN DITCHES 115 feet wide at the top (Fig. 48). It is used to remove surface water during heavy rains and melting snows. Such a run may be con- veniently used to protect depressions, and to prevent surface water from entering a lower area. These drains should be kept well sodded. As a rule a drainage system is not complete unless surface-runs are provided to take care of the excess water during flood flow. open Ditches.—Frequently small open ditches about 3 to 5 feet deep are employed, in pJace of surface-runs, to prevent flood water from flowing on to low lands; the water is thus carried around the low area or to one side instead. 1/ HIGH LAND RooS". I i! -' =' i /// L' 'A C '=^' L" _ - w -. .SMALL. prRT^. , ' If/ '-5? Of Hi r .1, ' " / III (// I/' 11/ '/ - ^ w '^ I. - 'Ji Ui. 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
