Journal of Soil and Plant Interactions
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AREEO
Abstract: (222 Views)
Soil and water salinity is one of the major agricultural challenges in Iran and worldwide, and reclaiming saline soils requires substantial water consumption. Therefore, re-evaluating reclamation methods in light of water resource limitations is essential. This study examined the effects of three tillage systems (conventional tillage, reduced tillage, and no-tillage) on the physical properties of saline soils in Isfahan Province over four years. The studied properties included pore size distribution, field capacity (θFC), permanent wilting point (θPWP), plant-available water content (AWC), and the soil water retention curve (WRC). The management practices included residue removal in conventional tillage and residue retention in reduced tillage and no-tillage systems. The results showed that the highest amount of macropores (Macro-P) was found in the reduced tillage, no-tillage, and then conventional tillage treatments (0.032, 0.029, and 0.022 cm³ cm⁻³, respectively). The reduced tillage treatment also had the highest amount of mesopores (Meso-P) and the θFC values in reduced tillage and no-tillage were significantly higher than the conventional tillage (0.250, 0.247, and 0.238 cm³ cm⁻³, respectively). The AWC100 values were similar across treatments, but the highest value was for the no-tillage treatment (0.210 cm³ cm⁻³). In the third and fourth years, more distinct differences were observed in the water retention curves, particularly at low suction levels. Conservation tillage treatments increased the size of macropores and mesopores and improved hydraulic indices. The results indicate that conservation tillage can serve as a suitable alternative to conventional tillage in dry and saline conditions, improving soil conditions and water resource efficiency.
Keywords: Conservation tillage, field capacity, plant-available water, soil salinity, soil water retention curve.
Type of Study: Research |
Subject:
Physical and chemical processes in the rhizosphere
Received: 2024/11/3 | Accepted: 2025/01/19
Received: 2024/11/3 | Accepted: 2025/01/19
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Journal of Soil and Plant Interactions by http://jspi.iut.ac.ir is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
This work is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported License which allows users to read, copy, distribute and make derivative works for non-commercial purposes from the material, as long as the author of the original work is cited properly.
This work is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported License which allows users to read, copy, distribute and make derivative works for non-commercial purposes from the material, as long as the author of the original work is cited properly.
