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Assessment of Subsoil Compaction by Soil Texture on Field Scale
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 Title & Authors
Assessment of Subsoil Compaction by Soil Texture on Field Scale
Cho, Hee-Rae; Jung, Kang-Ho; Zhang, Yong-Seon; Han, Kyung-Hwa;
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 Abstract
It is necessary to assess soil physical properties and crop growth treated by compaction to establish the soil management standard. This study evaluated the bulk density, strength and crop growth after subsoil compaction for sandy loam and loam on the field in Suwon, Korea. The treatments were compaction and deep tillage. Sandy loam and loam were classified to coarse soil and fine soil, respectively, depending on clay contents. In coarse soil, bulk density of compacted plot was 8~17% greater than control and deep tilled plot. The root growth was worse in compacted plot compared with control. In fine soil, plow pan was not observed in deep tilled plot with 5~19% smaller bulk density than compacted plot and control. Deep tillage improved the crop growth. The soil physical properties by compaction were dependent on clay content and crop growth limit depended on the traffic driving.
 Keywords
Subsoil compaction;Soil bulk density;Penetration resistance;Crop growth;Soil porosity;
 Language
Korean
 Cited by
 References
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