Simplified Evaluation of Salt Affected Soils Using 1:5 Soil–Water Extract

Endo, Tsuneyoshi; Abdalla, Mubarak Abdelrahman; Elkarim, Abdel Karim Hassan Awad; Toyoda, Mayu; Yamamoto, Seiji; Yamanaka, Norikazu

doi:10.1080/00103624.2021.1953052

Cited by 3 publications

(1 citation statement)

References 22 publications

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“…The EC of leachate was measured by portable EC meter-5061 (Sanxin Instrument Company, Shanghai, China) and EC meter (DDSJ-318; Shanghai Yidian Scientific Instrument, Shanghai, China). The final EC of rhizosphere soil was measured at the end of the experiment (water: soil = 5:1) [21].…”

Section: Ec Parametersmentioning

confidence: 99%

Physio-Biochemical Responses of Three Aquilegia Species Seedlings to Salt Stress

et al. 2022

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Road deicing salts are widely used during winter in northern China, which makes it essential to choose proper salt-tolerant plant species in urban landscapes. Columbine (Aquilegia) is a herb with high ornamental and commercial values. This study evaluated three Aquilegia species (A. oxysepala, A. parviflora, and A. viridiflora) for salt tolerance by monitoring their germination state under different electrical conductivity (EC) of 0.1 dS·m−1 (distilled water), 1.0 dS·m−1, 2.0 dS·m−1, 3.0 dS·m−1, 4.0 dS·m−1, 5.0 dS·m−1, 6.0 dS·m−1, physio-biochemical responses to different EC of 0.3 dS·m−1 (tap water), 5.0 dS·m−1, and 10.0 dS·m−1. The germination and growth parameters, visual scores, dry weight, leaf stomatal conductance, photosynthetic rate, and chlorophyll contents of three species decreased under salt stress, which was opposite to the changes of electrolyte leakage, malondialdehyde, proline, and soluble sugar contents. Superoxide dismutase and peroxidase activity trend differently among species. These results showed that the germination threshold of three species was 6.0 dS·m−1. A. oxysepala was the most salt-tolerant species, with a tolerance threshold of soil conductivity in 2.83 dS·m−1, followed by A. viridiflora and A. parviflora. Therefore, A. oxysepala is suitable for planting as a ground cover in urban areas where deicing salt is applied.

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Section: Ec Parametersmentioning

confidence: 99%

Physio-Biochemical Responses of Three Aquilegia Species Seedlings to Salt Stress

et al. 2022

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Straw interlayer improves sunflower root growth: Evidence from moisture and salt migration and the microbial community in saline-alkali soil

Chen,

Wang,

Jing

et al. 2024

Journal of Integrative Agriculture

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Study on the Effects of Irrigation Quotas and Amendments on Salinized Soil and Maize Growth

Chen,

Yue,

Sun

et al. 2024

Water

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Salt damage affects crop yields and wastes limited water resources. Implementing water-saving and salt-controlling strategies along with amendments can enhance crop productivity and support the development of salinized soils towards. In this study, we used “Jia Liang 0987” maize as the test material, and a two-factor split block design was executed to investigate the effects of synergistic management of irrigation volume (W1: 360 mm, W2: 450 mm, and W3: 540 mm) and amendments (T1: microbial agent 816.33 kg·hm−2, T2: humic acid 6122.45 kg·hm−2, T3: microsilica powder 612.25 kg·hm−2) on water, salt and soil indices, and growth characteristics. The combination of 450 mm of irrigation with humic acid (W2T2) or with microsilica powder (W2T3) significantly lowered the groundwater level by 0.24 m and 0.19 m, respectively. The soil mineralization was significantly reduced by 2.60 g/L and 1.75 g/L with W2T2 and 540 mm of irrigation combined with humic acid (W3T2), respectively. The soil moisture content increased with depth and over time, showing the greatest improvement with W2T2. This combination also showed optimal results for pH and total salt, organic matter, available phosphorus, quick-acting potassium, Cl−, and SO42− contents. W2T2 and W3T2 improved soil field capacity and HCO3− contents, and significantly increased total nitrogen and phosphorus content, improving the soil nutrient grade. W2T2 showed the greatest maize plant height (323.67 cm) and stem thickness (21.54 mm for diameter), enhancing above-ground dry biomass (72,985.49 kg·hm−2) and grain yield (14,646.57 kg·hm−2). Implementing water-saving and salt-controlling strategies with amendments effectively improved soil fertility and crop yield in salinized soils, and the amendments factor played a major role. In saline–alkali soils in the northwest of China, 450 mm of irrigation combined with humic acid is especially helpful for enhancing soil fertility and maize productivity.

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Simplified Evaluation of Salt Affected Soils Using 1:5 Soil–Water Extract

Cited by 3 publications

References 22 publications

Physio-Biochemical Responses of Three Aquilegia Species Seedlings to Salt Stress

Physio-Biochemical Responses of Three Aquilegia Species Seedlings to Salt Stress

Straw interlayer improves sunflower root growth: Evidence from moisture and salt migration and the microbial community in saline-alkali soil

Study on the Effects of Irrigation Quotas and Amendments on Salinized Soil and Maize Growth

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