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2025 Vol.7, Issue 2 Preview Page

Research Article

Effect of soil texture and water content on the soil-material adhesion force
Dae-Wi Jeong1
,
Bo-Min Bae1
,
Min-Seung Kim1
,
Se-O Choi1
,
Shin-Young Noh1
,
Yeon-Soo Kim1*
,
Yong-Joo Kim23
1Department of Bio-Industrial Machinery Engineering, Pusan National University, Miryang 50463, Republic of Korea
2Department of Smart Agricultural Systems and Mechanical Engineering, Chungnam National University, Daejeon 34134, Republic of Korea
3Department of Smart Agriculture Systems, Chungnam National University, Daejeon 34134, Republic of Korea
*Corresponding Author
30 June 2025. pp. 103-113
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Abstract

This study experimentally analyzed the soil adhesion characteristics of three different soil types (sandy loam, sandy clay loam, and loam) and three surface materials (stainless steel, engineering plastic, and urethane) under six water content conditions ranging from 5% to 30%. Soil physical transitions were quantified using Atterberg limits: Plastic Limit (PL), Liquid Limit (LL), and Plasticity Index (PI) to interpret soil adhesion behavior with respect to water content. The results showed that adhesion generally increased with water content and peaked near each soil's LL. Urethane exhibited the highest adhesion across all soil types due to its high surface friction and deformability, while stainless steel showed consistently lower adhesion, making it suitable for low-adhesion applications. Furthermore, soils with higher PI values exhibited more stable and predictable adhesion increases, while lower-PI soils showed more abrupt, nonlinear changes. These findings suggest that both soil properties and environmental water conditions should be considered when selecting surface materials for agricultural machinery. Practical guidelines are proposed for selecting material types and operation timing based on soil texture and water content to reduce adhesion in actual farming operations.

Keywords
Agricultural machinery
Atterberg limits
Soil adhesion
Water content
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Information
  • Publisher :Korean Society of Precision Agriculture
  • Publisher(Ko) :한국정밀농업학회
  • Journal Title :Precision Agriculture Science and Technology
  • Journal Title(Ko) :정밀농업과학기술
  • Volume : 7
  • No :2
  • Pages :103-113
  • Received Date : 2025-05-31
  • Revised Date : 2025-06-26
  • Accepted Date : 2025-06-26
  • DOI :https://doi.org/10.22765/pastj.20250009
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