Soil culture and modern farm methods . New Deere Gang Equipped with Subsoil Attachment36 The First Type of Subsoil Plow invented had a narrow share and a long moldboard, which would bringsubsoil to the surface. Theorists at that time believed that subsoil,being new, was rich in plant food elements, and that it would maketheir land productive. The absence, however, of humus in the suteoilresulted in disappointments. If the subsoil was clay or sand, therewould be no production until organic matter was thoroughly mixed withthe soil and reduced to humus. The Next Type of Subsoil Plow devised was o
Soil culture and modern farm methods . New Deere Gang Equipped with Subsoil Attachment36 The First Type of Subsoil Plow invented had a narrow share and a long moldboard, which would bringsubsoil to the surface. Theorists at that time believed that subsoil,being new, was rich in plant food elements, and that it would maketheir land productive. The absence, however, of humus in the suteoilresulted in disappointments. If the subsoil was clay or sand, therewould be no production until organic matter was thoroughly mixed withthe soil and reduced to humus. The Next Type of Subsoil Plow devised was one with a duck-bill-shaped point, intended to break up thesoil below the bottom of the furrow. This implement was condemned,. Proper Method of Subsoiling Is to Cut a Thin, Deep Gash in Bottoms of AlternatingFiirrows .. In Dry Sections It Should Be Used in Every Furrow especially where the subsoil was hard and composed largely of clay, forthe reason that the breaking up process caused large air spaces whichpractically stopped capillary water from rising to the seed-bed. The Modern Type of Subsoil Plow possesses none of the objectionable features of the other two mentioned,but it does solve the difficulties which were first mentioned, namely,dense, sticky subsoils and hard-pans. This plow is built on the principle of a colter. It cuts a gash fromthree-eighths to one-half inch in width and to any required depth, but it does not break up the subsoil or hard-pan to any great extent. Inthis gash water and air are freely admitted. They naturally spread outwhen the bottom of the gash is reached and obeying natures laws, theyreach the surface by capillary attraction. To illustrate, if a woodenfloor is laid upon anoth
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Keywords: ., bookcentury1900, bookdecade1910, bookidso, booksubjectagriculture
