. Productive soils; the fundamentals of successful soil management and profitable crop production. Soils. Fig. 50.—A good outlet ditch. I'lns was dug with a floating dredge. It is 20 feet wide at the top and 7 feet deep. (Wisconsin Station.) be dug about every four or eight rods; but many open ditches take up considerable space, they cut farms and fields into incon- venient and irregular shapes, they require the building of many. Fig. 51.—Covered drains other than tile. A,B,C, cobblestone and rock drains; D, pole drain. farm bridges, they are unsightly, they are difficult and expen- sive to ke
. Productive soils; the fundamentals of successful soil management and profitable crop production. Soils. Fig. 50.—A good outlet ditch. I'lns was dug with a floating dredge. It is 20 feet wide at the top and 7 feet deep. (Wisconsin Station.) be dug about every four or eight rods; but many open ditches take up considerable space, they cut farms and fields into incon- venient and irregular shapes, they require the building of many. Fig. 51.—Covered drains other than tile. A,B,C, cobblestone and rock drains; D, pole drain. farm bridges, they are unsightly, they are difficult and expen- sive to keep open and clean, they present a constant source of danger to farm animals, they provide harborage for obnoxious weeds, and are excellent breeding places for injurious and dis- agreeable 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
