Dimensional analysis of soil properties after treatment with the rotary paraplow, a new conservationist tillage tool

  • D. Albiero Agricultural Engineering Department. Federal University of Ceará. Fortaleza 60356-000. Brazil
  • A. J. S. Maciel Agricultural Engineering Faculty. State University of Campinas. Campinas. Brazil
  • C. A. Gamero Faculty of Agronomy Engineering College. State University of São Paulo. Campus Botucatu. Botucatu 18610-307. Brazil
  • K. P. Lanças Faculty of Agronomy Engineering College. State University of São Paulo. Campus Botucatu. Botucatu 18610-307. Brazil
  • R. L. Mion Agricultural Engineering Department. Federal University of Ceará. Fortaleza 60356-000. Brazil
  • C. A. Viliotti Agricultural Engineering Department. Federal University of Ceará. Fortaleza 60356-000. Brazil
  • L. A. Monteiro Faculty of Agronomy Engineering College. State University of São Paulo. Campus Botucatu. Botucatu 18610-307. Brazil
Keywords: dimensionless chart, soil dynamics, strip till

Abstract

This study examined a new conservation tillage tool, the “rotary paraplow”. Emphasis was placed on evaluating the tool’s conservation potential using dimensionless graph analysis. The dynamic conditions of the soil were investigated in terms of physical soil properties. Having determined the variables to be measured, dimensional analysis was used to plan the experiments. Two variations were considered for each dependent variable (linear speed, working depth, and rotation velocity), totaling eight treatments, allotting in each an experimental strip with five data collection points. This arrangement totaled 16 experimental strips, with 80 data collection points for all variables. The rotary paraplow generates a trapezoidal furrow for planting with a very wide bottom and narrower at the top. The volumetric subsoiling action generates cracks on the sides of the band. Because of their specific geometry the blades of rotary paraplow generate a soil failure according to its natural crack angle, optimizing the energy use, while preserving the natural soil properties. Results showed the conservation character of the rotary paraplow, capable of breaking up clods for planting without changing the original physical soil properties. 

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References

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How to Cite
Albiero, D., Maciel, A. J. S., Gamero, C. A., Lanças, K. P., Mion, R. L., Viliotti, C. A., & Monteiro, L. A. (1). Dimensional analysis of soil properties after treatment with the rotary paraplow, a new conservationist tillage tool. Spanish Journal of Agricultural Research, 9(3), 693-701. https://doi.org/10.5424/sjar/20110903-329-10
Section
Agricultural engineering