A five-point penetrometer with GPS for measuring soil compaction variability

[1]  J. G. Hendrick Recording soil penetrometer , 1969 .

[2]  F. Moreno,et al.  Soil physical properties, water depletion and crop development under traditional and conservation tillage in southern Spain , 1997 .

[3]  R. L. Raper,et al.  TECHNICAL NOTES: A TRACTOR-MOUNTED MULTIPLE-PROBE SOIL CONE PENETROMETER , 1999 .

[4]  C. Vaz,et al.  Contribution of water content and bulk density to field soil penetration resistance as measured by a combined cone penetrometer–TDR probe , 2001 .

[5]  J. Arvidsson Subsoil compaction caused by heavy sugarbeet harvesters in southern Sweden: I. Soil physical properties and crop yield in six field experiments , 2001 .

[6]  Mohamed A Tarawally,et al.  Field compaction at different soil-water status: effects on pore size distribution and soil water characteristics of a Rhodic Ferralsol in Western Cuba , 2004 .

[7]  Azmi Yahya,et al.  A Tractor-mounted, Automated Soil Penetrometer–shearometer Unit for Mapping Soil Mechanical Properties , 2005 .

[8]  G. Botta,et al.  Deep tillage and traffic effects on subsoil compaction and sunflower (Helianthus annus L.) yields , 2006 .

[9]  P. Lammers,et al.  On-the-go measurement of soil water content and mechanical resistance by a combined horizontal penetrometer , 2006 .

[10]  H. Grip,et al.  Effect of soil compaction on hydraulic properties of two loess soils in China , 2006 .

[11]  Mehari Z. Tekeste,et al.  FINITE ELEMENT ANALYSIS OF CONE PENETRATION IN SOIL FOR PREDICTION OF HARDPAN LOCATION , 2007 .

[12]  Viacheslav I. Adamchuk,et al.  On-the-Go Mapping of Soil Mechanical Resistance Using a Linear Depth Effect Model , 2008 .

[13]  S. Fountas,et al.  Sunflower oil energy budget for in-farm oil production under four tillage systems , 2008 .

[14]  Viacheslav I. Adamchuk,et al.  Review: Sensor systems for measuring soil compaction: Review and analysis , 2008 .

[15]  J. Lipiec,et al.  Spatial distribution of soil penetration resistance as affected by soil compaction: The fractal approach , 2009 .

[16]  V. Adamchuk,et al.  Influence of failure mode induced by a horizontally operated single-tip penetrometer on measured soil resistance. , 2009 .