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Volume 8, issue 1
Solid Earth, 8, 189-198, 2017
https://doi.org/10.5194/se-8-189-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
Solid Earth, 8, 189-198, 2017
https://doi.org/10.5194/se-8-189-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 20 Feb 2017

Research article | 20 Feb 2017

Cooperative effects of field traffic and organic matter treatments on some compaction-related soil properties

Metin Mujdeci1, Ahmet Ali Isildar1, Veli Uygur1, Pelin Alaboz1, Husnu Unlu2, and Huseyin Senol1 Metin Mujdeci et al.
  • 1Suleyman Demirel University, Faculty of Agriculture, Department of Soil Science and Plant Nutrition, Isparta, Turkey
  • 2Suleyman Demirel University, Faculty of Agriculture, Department of Horticultural Sciences, Isparta, Turkey

Abstract. Soil compaction is a common problem of mineral soils under conventional tillage practices. Organic matter addition is an efficient way of reducing the effects of field traffic in soil compaction. The aim of this study was to investigate the effects of number of tractor passes (one, three, and five) on depth-dependent (0–10 and 10–20cm) penetration resistance, bulk density, and porosity of clay-textured soil (Typic Xerofluvent) under organic vegetable cultivation practices in the 2010–2013 growing seasons. Fields were treated with farmyard manure (FYM, 35tha−1), green manure (GM; common vetch, Vicia sativa L.), and conventional tillage (CT). The number of tractor passes resulted in increases in bulk density and penetration resistance (CT>GM>FYM), whereas the volume of total and macropores decreased. The maximum penetration resistance (3.60MPa) was recorded in the CT treatment with five passes at 0–10cm depth, whereas the minimum (1.64MPa) was observed for the FYM treatment with one pass at 10–20cm depth. The highest bulk density was determined as 1.61gcm−3 for the CT treatment with five passes at 10–20cm depth; the smallest value was 1.25gcm−3 in the FYM treatment with only one pass at 0–10cm depth. The highest total and macropore volumes were determined as 0.53 and 0.16cm3cm−3 respectively at 0–10cm depth for the FYM treatment with one pass. The volume of micropores (0.38cm3cm−3) was higher at 0–10cm depth for the FYM treatment with three passes. It can be concluded that organic pre-composted organic amendment rather than green manure is likely to be more efficient in mitigating compaction problems in soil.

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Organic matter addition is an efficient way of reducing the effects of field traffic. The depth-dependent (0–10 and 10–20 cm) changes in some physical soil traits such as penetration resistance, bulk density, and porosity as a function of tractor passes and organic matter addition to clay soil. The enhancing effects of treatments on the investigated parameters were C>GM>FYM. The increase in tillage lines made the soil properties worse and corresponded with the type of organic matter.
Organic matter addition is an efficient way of reducing the effects of field traffic. The...
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