Click on “Download PDF” for the PDF version or on the title for the HTML version. If you are not an ASABE member or if your employer has not arranged for access to the full-text, Click here for options. Movement of Soil by Sweep Injection toolsPublished by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.org Citation: Paper number 021141, 2002 ASAE Annual Meeting . (doi: 10.13031/2013.9692) @2002Authors: Shafiqur Rahman, Ying Chen, David A. Lobb Keywords: Soil translocation, point-tracer, sweep, injection tool, depth, speed, and moisture content Soil movement (translocation) and dispersion by injection tools result in significant agricultural and environmental problems. However, it has been overlooked because prior studies have focused mainly on the forward translocation (X) of soil by tillage tools. This research was under taken to quantify soil translocation by injection tools in X, Y, and Z co-ordinates. Three different sweep injection tools were tested in an indoor soil bin at the U of M. Soil translocation was measured for three injection depths (50, 100, 150 mm), two tool forward speeds (0.6 and 1.4 m/s), and two soil moisture contents (14 and 18%). Numbered PVC point-tracers with a side length of 10 mm were used to measure translocation. For all sweeps, forward translocation increased significantly with injection depth and tool forward speed, but not with soil moisture content. Changes in speed increased forward translocation by a factor of 1.5, while lateral translocation increased by a factor of 2.7. Lateral translocation of soil was not affected by injection depth and soil moisture content. A high speed tends to expose manure, while low speed provided a partial covering over the injection slot opening. Injection depth and soil moisture content had a significant effect on net mean vertical translocation for all sweeps, but not with tool forward speed. (Download PDF) (Export to EndNotes)
|