TITLE: INFLUENCE OF SOIL COMPACTION ON ENERGY EFFICIENCY DURING TILLAGE OPERATIONS

Аннотация

Soil compaction is a significant factor influencing the energy efficiency of tillage operations in agriculture. The present review is concerned with an examination of the extant literature on the manner in which compaction increases energy requirements during tillage, and the concomitant implications of this phenomenon in regard to the economic and environmental impact of farming. The article explores the mechanisms through which soil compaction affects energy usage, the long-term consequences of increased tillage depth, and potential mitigation strategies. The review concludes by exploring sustainable farming practices, including reduced tillage, precision farming, and subsoiling, as potential solutions to enhance energy efficiency in the context of soil compaction. Key words: Soil compaction, tillage operations, energy efficiency, fuel consumption, controlled traffic farming, conservation tillage. Introduction: In modern agriculture, the efficient use of energy during tillage operations is of crucial importance. Such efficiency is vital in reducing operational costs and minimising environmental impact. The process of soil compaction, characterised by the compression of soil particles, leads to a reduction in porosity and an enhancement in resistance to tillage implements. Consequently, greater energy is necessary to penetrate compacted layers, resulting in elevated fuel consumption and accelerated machinery wear. The objective of this paper is twofold: firstly, to undertake a comprehensive review of the extant literature pertaining to the impact of soil compaction on tillage energy efficiency; and secondly, to discuss potential methodologies for mitigating these effects, with a view to promoting more sustainable farming practices. Impact of Soil Type and Moisture Content: The effect of soil compaction on energy efficiency varies depending on the type of soil and its moisture content. In heavier soils, such as clay, compaction leads to greater resistance to tillage (Batey & Moolman, 2012). In contrast, sandy soils are less https://scientific-jl.com/ 3 0 9 42-son_2-to’plam_Aprel -2025 ISSN: 3030-3621 Ta'lim innovatsiyasi va integratsiyasi affected by compaction due to their looser particle structure, but compaction still increases energy use. Moisture content plays a key role in resistance—wet soils tend to require less energy than dry soils when compacted (Zhang & Zhang, 2016). However, overly saturated soils can present additional challenges, increasing drag and fuel consumption. Long-Term Effects of Soil Compaction: Repeated tillage in compacted soils can result in a vicious cycle, where deeper tillage is required over time to break through compacted layers, thus increasing fuel consumption further. According to Bristow & Pannell (2003), this can lead to long- term soil degradation, as compacted soils often exhibit reduced microbial activity, lower water infiltration, and impaired root growth. As a result, crop yields can be reduced, further necessitating energy-intensive tillage operations. Strategies to Mitigate Soil Compaction Effects: Several strategies have been identified to mitigate the effects of soil compaction on tillage energy consumption. Subsoiling, for example, is a method of deep tillage that breaks compacted layers below the plow layer, helping to reduce surface compaction and make subsequent tillage operations more efficient (Batey & Moolman, 2012). However, subsoiling itself can be energy-intensive. Alternatively, precision tillage techniques, including GPS-guided machinery and variable-rate tillage, can reduce unnecessary fuel consumption by adjusting the depth and intensity of tillage based on real-time soil conditions (Anderson & Taylor, 2014).