A pressure measurement method based on profiling elastic press roller

Abstract A novel method was introduced based on a type of profiling elastic press roller to solve the problem that soil compaction pressure is difficult to monitor in real time. The pressure real-time values were acquired through the measurement of the profiling elastic press roller’s eccentricity. In order to evaluate the relationship between the profiling elastic press roller’s eccentricity and the pressure, the study was conducted in an indoor soil bin, in July 2015. Three experimental treatments with soil volumetric moisture content 14.9%, 22.7% and 29.7%, were used in clay soils. The relationship between the profiling elastic press roller’s eccentricity and soil cone index, and the relationship between the static pressure and soil cone index, were investigated. With the equivalent relationship of the cone index, the data was curve fitted and the model equation was established between eccentricity and pressure, in the topsoil layer in which the depth is 0–0.1 m. The correlation coefficient values (R 2 ) of the model equation all reached 0.99 at three experimental treatments, indicating the high degree of correlation. In order to evaluate the pressure measurement method, the validation experiments were conducted. The relationship was compared between the cone index predicted from the press roller measurements and the cone index measured from the manual measurements. The results showed that the dots of scatter diagram are all concentrated around the 1:1 ratio line, with high R 2 values, at three volumetric moisture contents. These experiments indicate that the predictions were very consistent with the manual measurements, indicating the pressure measurement method based on the profiling elastic press roller can be used into real-time pressure monitoring.

[1]  D. Wolf,et al.  Soil Compaction Effects on Cotton Emergence , 1984 .

[2]  J. V. Perumpral,et al.  Moisture and Density Effect on Cone Index , 1981 .

[3]  Dirk Ansorge,et al.  The effect of tyres and a rubber track at high axle loads on soil compaction, Part 1 Single axle-studies , 2007 .

[4]  J. L. Hernanz,et al.  An empirical model to predict soil bulk density profiles in field conditions using penetration resistance, moisture content and soil depth , 2000 .

[5]  Mjdeci Metin,et al.  The Effect of Soil Compaction on Emergence of Sugar Beet Seedlings , 2005 .

[6]  Huang Dongyan,et al.  Combined rototilling-stubble-breaking-planting machine , 2007 .

[7]  W. J. Busscher,et al.  ADJUSTMENT OF FLAT-TIPPED PENETROMETER RESISTANCE DATA TO A COMMON WATER CONTENT , 1990 .

[8]  G. Richard,et al.  Models of soil compaction due to traffic and their evaluation , 2002 .

[9]  Sefa Altikat,et al.  The effects of tillage and intra-row compaction on seedbed properties and red lentil emergence under dry land conditions , 2011 .

[10]  W. E. Larson,et al.  Compression of agricultural soils from eight soil orders. , 1980 .

[11]  W. R. Whalley,et al.  Effects of seed priming, aggregate size and soil matric potential on emergence of cotton (Gossypium hirsutum L.) and maize (Zea mays L.) , 2003 .

[12]  Dirk Ansorge,et al.  The effect of tyres and a rubber track at high axle loads on soil compaction-Part 2: Multi-axle machine studies , 2008 .

[13]  J. Lipiec,et al.  Quantification of compaction effects on soil physical properties and crop growth , 2003 .

[14]  E. Kirby.  Effect of sowing depth on seedling emergence, growth and development in barley and wheat , 1993 .

[15]  T. Gemtos,et al.  Effects of Soil Compaction, Water and Organic Matter Contents on Emergence and Initial Plant Growth of Cotton and Sugar Beet , 1997 .

[16]  A. Alexandrou,et al.  Deformation processes below a plate sinkage test on sandy loam soil: experimental approach , 2001 .

[17]  庄健,et al.  Design and Experiment of Profiling Elastic Press roller , 2015 .

[18]  D. Jorajuria,et al.  The effect of vehicle weight on the distribution of compaction with depth and the yield of Lolium/Trifolium grassland , 1997 .

[19]  J. R. Pardales,et al.  Effects of soil compaction on the development of rice and maize root systems , 1991 .

[20]  W. Wenjun,et al.  Effects of profiling elastic press roller on seedbed properties and soybean emergence under double row ridge cultivation , 2016 .

[21]  Mohammad Reza Mosaddeghi,et al.  Soil compactibility as affected by soil moisture content and farmyard manure in central Iran , 2000 .

[22]  Qingzhu Zhang,et al.  Compaction Performance of Biomimetic Press Roller to Soil , 2015 .

[23]  R. L. Schafer,et al.  A model for agricultural soil compaction , 1986 .

[24]  S. Duiker,et al.  Soil compaction in conservation tillage : Crop impacts , 2006 .

[25]  G. Schaeffer.  Mutations and cell selections: Increased protein from regenerated rice tissue cultures , 1981 .

[26]  Robert A. Henson,et al.  Seeding depth and soil packing affect pure live seed emergence of cuphea , 2008 .

[27]  Jerzy Lipiec,et al.  A review of the usefulness of relative bulk density values in studies of soil structure and compaction , 2000 .

[28]  J. Qiu,et al.  Influence of seed weight and planting depth on common vetch establishment and growth , 1993 .

[29]  Per Schjønning,et al.  Subsoil compaction caused by heavy sugarbeet harvesters in southern Sweden; II. soil displacement during wheeling and model computations of compaction , 2001 .