. Effective farming; a text-book for American schools. Agriculture. Fig. 198. — Subsoil plow. They do not turn a furrow. In regions where hard-pan is found just below plow depth, subsoil plows are very efficient for increasing the depth of soil available for the Fig. 199. — Disc harrow. 223. Harrows. — For the purpose of following the plow and breaking up the clods and smoothing the surface soil, harrows are used. Disc, spring-tooth, spike-tooth, and blade harrows or Acme, are the common types. In choosing a harrow one 2g. Please note that these images are extracted from scanned page i
. Effective farming; a text-book for American schools. Agriculture. Fig. 198. — Subsoil plow. They do not turn a furrow. In regions where hard-pan is found just below plow depth, subsoil plows are very efficient for increasing the depth of soil available for the Fig. 199. — Disc harrow. 223. Harrows. — For the purpose of following the plow and breaking up the clods and smoothing the surface soil, harrows are used. Disc, spring-tooth, spike-tooth, and blade harrows or Acme, are the common types. In choosing a harrow one 2g. 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 Sampson, Harry Oscar, 1879-. New York, Macmillan
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectagriculture, bookyear
