MINIMUM TILLAGE AGRICULTURAL IMPLEMENT HAVING FURROW OPENING SHANK ASSEMBLIES
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机译：具有犁SHA SHA组合的最低耕作农业实施
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摘要
A preferred embodiment of a minimum tillage agricultural implement 10 isdescribed having a plurality of laterally spaced shank assemblies 60, 62mounted on atransverse tool bar 56, 58. Each shank assembly 60, 62 has an elongated narrowuprightshank 70 that extends downward from the tool bar 56, 58 to a working point 78forforming a narrow furrow 12 in soil covered with agricultural residue. Eachshank assembly60, 62 has a set of residue control wheels I30, 132 that straddle the shank 70with theaxes 134, 136 of rotation of the residue control wheels 130, 132 being locatedrearwardof a front edge reference segment 82 of the shank 70 by a distance "A" of lessthan adiameter of the wheels 130 or 132 for engaging and stabilizing the soil andagriculturalresidue downward and under the wheels and away from the shank 70. In analternateembodiment, the residue control wheels 130, 132 are longitudinally offset withthe distance"B" between the axes 134 and 136 are less than one-third the diameter of thewheels 130,132.
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