Effects of Tillage Methods on Penetration Resistance, Bulk Density and Saturated Hydraulic Conductivity in a Clayey Soil Conditions
Effects of six tillage practices on saturated hydraulic conductivity (HC), soil bulk density (BD), and penetration resistance (PR) were evaluated for a clayey soil (Typic Haploxererts) under semi-arid Mediterranean conditions in a three year study (2006-2009). The experiment was conducted on a rando...
Saved in:
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Ankara University
2011-06-01
|
| Series: | Journal of Agricultural Sciences |
| Subjects: | |
| Online Access: | https://dergipark.org.tr/tr/download/article-file/21051 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | Effects of six tillage practices on saturated hydraulic conductivity (HC), soil bulk density (BD), and penetration
resistance (PR) were evaluated for a clayey soil (Typic Haploxererts) under semi-arid Mediterranean conditions in
a three year study (2006-2009). The experiment was conducted on a randomized complete block design with three
replicates. Treatments were: conventional tillage with residue incorporated (CTS), conventional tillage with residue
burned (CTB), reduced tillage with heavy tandem disc harrow (RTD), reduced tillage with rotary tiller (RTR),
reduced tillage with heavy tandem disc harrow for the first crop + no-tillage for the second crop (RNT), and no
tillage (NT). The study was conducted in wheat-corn, wheat-soybean and wheat crop rotations. The tillage effects
on HC, BD and PR were significant at soil depth of 0-30 cm. The hydraulic conductivity was higher in CTS, and
followed by CTB, RTR, RTD, RNT and NT practices, respectively. The hydraulic conductivity values under NT in
2007 and 2008 were 20% and 30% lower at 0-30 cm depth compared with CTS, respectively. The conventional
tillage treatments in the semi-arid conditions improved the HC with decreasing BD and PR of the clayey soil. The
BD and PR values were higher under NT treatments than the tilled plots and increased with depth. The values of
soil compaction indicators were significantly greater under no-tillage and reduced tillage as compared to those
under conventional tillage in all soil depths studied. |
|---|---|
| ISSN: | 1300-7580 2148-9297 |