Soil hydraulic properties: influence of tillage and cover crops
Understanding the effects of cover crops and tillage on soil physical properties is important for determining soil productivity. This study was conducted at Lincoln University's Freeman Center, USA to evaluate the effects of tillage and cover crop management on soil hydraulic properties. The fi...
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| Format: | Article |
| Language: | English |
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Institute of Soil Science
2018
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| Online Access: | http://psasir.upm.edu.my/id/eprint/73928/1/PORE.pdf |
| _version_ | 1825950273581875200 |
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| author | Haruna, Samuel I. Anderson, Stephen H. Nkongolo, Nsalambi Zaibon, Syaharudin |
| author_facet | Haruna, Samuel I. Anderson, Stephen H. Nkongolo, Nsalambi Zaibon, Syaharudin |
| author_sort | Haruna, Samuel I. |
| collection | UPM |
| description | Understanding the effects of cover crops and tillage on soil physical properties is important for determining soil productivity. This study was conducted at Lincoln University's Freeman Center, USA to evaluate the effects of tillage and cover crop management on soil hydraulic properties. The field site included three replicate blocks in a randomized complete block design with each plot measuring 21.3 m in length and 12.2 m in width. Treatment factors were tillage at two levels (moldboard plow tillage vs. no tillage) and cover crop at two levels (cereal rye (Secale cereal) cover crop vs. no cover crop). Soil samples were collected in late spring/early summer from each treatment at 10-cm depth increments from the soil surface to a depth of 40 cm using cores (76.2-mm diameter and 76.2-mm length). Soil bulk density was 13% lower with tillage compared with no-tillage. Volumetric water content was significantly higher at 0.0 and −0.4 kPa pressures with tillage compared with no tillage. Tillage increased the proportion of coarse mesopores by 32% compared with no tillage, resulting in 87% higher saturated hydraulic conductivity (Ksat). Cover crop increased the proportion of macropores by 24% compared with no cover crop; this can potentially increase water infiltration and reduce runoff. As a result of higher macroporosity, Ksat was higher under cover crop compared with no cover crop. This study demonstrated that tillage can benefit soil hydraulic properties in the short term, but these effects may not persist over time. Cover crops may slightly improve soil hydraulic properties, but longer term studies are needed to evaluate the long-term effects. |
| first_indexed | 2024-03-06T10:12:08Z |
| format | Article |
| id | upm.eprints-73928 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T10:12:08Z |
| publishDate | 2018 |
| publisher | Institute of Soil Science |
| record_format | dspace |
| spelling | upm.eprints-739282021-06-21T11:09:54Z http://psasir.upm.edu.my/id/eprint/73928/ Soil hydraulic properties: influence of tillage and cover crops Haruna, Samuel I. Anderson, Stephen H. Nkongolo, Nsalambi Zaibon, Syaharudin Understanding the effects of cover crops and tillage on soil physical properties is important for determining soil productivity. This study was conducted at Lincoln University's Freeman Center, USA to evaluate the effects of tillage and cover crop management on soil hydraulic properties. The field site included three replicate blocks in a randomized complete block design with each plot measuring 21.3 m in length and 12.2 m in width. Treatment factors were tillage at two levels (moldboard plow tillage vs. no tillage) and cover crop at two levels (cereal rye (Secale cereal) cover crop vs. no cover crop). Soil samples were collected in late spring/early summer from each treatment at 10-cm depth increments from the soil surface to a depth of 40 cm using cores (76.2-mm diameter and 76.2-mm length). Soil bulk density was 13% lower with tillage compared with no-tillage. Volumetric water content was significantly higher at 0.0 and −0.4 kPa pressures with tillage compared with no tillage. Tillage increased the proportion of coarse mesopores by 32% compared with no tillage, resulting in 87% higher saturated hydraulic conductivity (Ksat). Cover crop increased the proportion of macropores by 24% compared with no cover crop; this can potentially increase water infiltration and reduce runoff. As a result of higher macroporosity, Ksat was higher under cover crop compared with no cover crop. This study demonstrated that tillage can benefit soil hydraulic properties in the short term, but these effects may not persist over time. Cover crops may slightly improve soil hydraulic properties, but longer term studies are needed to evaluate the long-term effects. Institute of Soil Science 2018-06 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/73928/1/PORE.pdf Haruna, Samuel I. and Anderson, Stephen H. and Nkongolo, Nsalambi and Zaibon, Syaharudin (2018) Soil hydraulic properties: influence of tillage and cover crops. Pedosphere, 28 (3). 430 - 442. ISSN 1002-0160 https://www.sciencedirect.com/science/article/pii/S1002016017603874 10.1016/S1002-0160(17)60387-4 |
| spellingShingle | Haruna, Samuel I. Anderson, Stephen H. Nkongolo, Nsalambi Zaibon, Syaharudin Soil hydraulic properties: influence of tillage and cover crops |
| title | Soil hydraulic properties: influence of tillage and cover crops |
| title_full | Soil hydraulic properties: influence of tillage and cover crops |
| title_fullStr | Soil hydraulic properties: influence of tillage and cover crops |
| title_full_unstemmed | Soil hydraulic properties: influence of tillage and cover crops |
| title_short | Soil hydraulic properties: influence of tillage and cover crops |
| title_sort | soil hydraulic properties influence of tillage and cover crops |
| url | http://psasir.upm.edu.my/id/eprint/73928/1/PORE.pdf |
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