Differential Effects of Inoculation with Earthworms and Phosphate-Solubilizing Bacteria on Phosphorus Adsorption Capacity of Soils with Different Phosphorus Contents
Due to the strong fixation and weak mobility of phosphorus (P) in the soil, P fertilizers can easily be left behind in the soil, which greatly increases the environmental pressure. To find a green and environmentally friendly method of P activation, this study evaluated the effects of inoculation wi...
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2025-03-01
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| author | Feiyu Dong Leixin Yu Yimeng Jiao Tianqi Wang Qinghai Yang Chuang Yang Lijuan Yang |
| author_facet | Feiyu Dong Leixin Yu Yimeng Jiao Tianqi Wang Qinghai Yang Chuang Yang Lijuan Yang |
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| description | Due to the strong fixation and weak mobility of phosphorus (P) in the soil, P fertilizers can easily be left behind in the soil, which greatly increases the environmental pressure. To find a green and environmentally friendly method of P activation, this study evaluated the effects of inoculation with earthworms and phosphate-solubilizing bacteria (PSB) on the adsorption and desorption in low-phosphorus (LP) and high-phosphorus (HP) soils substrates. In LP soils, inoculation with earthworms or (and) PSB reduced the maximum P adsorption, P adsorption affinity constant and maximum buffering capacity by 3–12%, 7–19% and 10–28%, respectively, while the readily desorbed P, degree of P saturation and desorption rates were significantly higher in the inoculated treatments. In HP soils, treatments inoculated with earthworms significantly increased the P adsorption affinity constants (16–22%) and maximum buffer capacity (8–16%) and decreased the adsorption saturation and desorption rates compared to no inoculum. The results indicate that inoculation with earthworms or (and) PSB can effectively reduce the P adsorption capacity and increase the P desorption capacity of LP soils, thus increasing the available P content. However, in HP soils, inoculation with earthworms increased the P adsorption capacity and reduced the risk of P losses due to high-P soil content. |
| format | Article |
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| spelling | doaj-art-77ed9eff003f4f119d665a3f36e898a22025-08-20T02:41:58ZengMDPI AGAgronomy2073-43952025-03-0115365910.3390/agronomy15030659Differential Effects of Inoculation with Earthworms and Phosphate-Solubilizing Bacteria on Phosphorus Adsorption Capacity of Soils with Different Phosphorus ContentsFeiyu Dong0Leixin Yu1Yimeng Jiao2Tianqi Wang3Qinghai Yang4Chuang Yang5Lijuan Yang6College of Land and Environment, Shenyang Agricultural University, Shenyang 110866, ChinaDepartment of Municipal and Environmental Engineering, Shenyang Urban Construction University, Shenyang 110167, ChinaCollege of Land and Environment, Shenyang Agricultural University, Shenyang 110866, ChinaCollege of Land and Environment, Shenyang Agricultural University, Shenyang 110866, ChinaFaculty of Urban Construction, Eastern Liaoning University, Dandong 118003, ChinaShenyang Hengxin Technology Management Consulting Service Co., Ltd., Shenyang 110000, ChinaCollege of Land and Environment, Shenyang Agricultural University, Shenyang 110866, ChinaDue to the strong fixation and weak mobility of phosphorus (P) in the soil, P fertilizers can easily be left behind in the soil, which greatly increases the environmental pressure. To find a green and environmentally friendly method of P activation, this study evaluated the effects of inoculation with earthworms and phosphate-solubilizing bacteria (PSB) on the adsorption and desorption in low-phosphorus (LP) and high-phosphorus (HP) soils substrates. In LP soils, inoculation with earthworms or (and) PSB reduced the maximum P adsorption, P adsorption affinity constant and maximum buffering capacity by 3–12%, 7–19% and 10–28%, respectively, while the readily desorbed P, degree of P saturation and desorption rates were significantly higher in the inoculated treatments. In HP soils, treatments inoculated with earthworms significantly increased the P adsorption affinity constants (16–22%) and maximum buffer capacity (8–16%) and decreased the adsorption saturation and desorption rates compared to no inoculum. The results indicate that inoculation with earthworms or (and) PSB can effectively reduce the P adsorption capacity and increase the P desorption capacity of LP soils, thus increasing the available P content. However, in HP soils, inoculation with earthworms increased the P adsorption capacity and reduced the risk of P losses due to high-P soil content.https://www.mdpi.com/2073-4395/15/3/659earthwormsphosphate-solubilizing bacteriaphosphorus adsorptionphosphorus desorption |
| spellingShingle | Feiyu Dong Leixin Yu Yimeng Jiao Tianqi Wang Qinghai Yang Chuang Yang Lijuan Yang Differential Effects of Inoculation with Earthworms and Phosphate-Solubilizing Bacteria on Phosphorus Adsorption Capacity of Soils with Different Phosphorus Contents Agronomy earthworms phosphate-solubilizing bacteria phosphorus adsorption phosphorus desorption |
| title | Differential Effects of Inoculation with Earthworms and Phosphate-Solubilizing Bacteria on Phosphorus Adsorption Capacity of Soils with Different Phosphorus Contents |
| title_full | Differential Effects of Inoculation with Earthworms and Phosphate-Solubilizing Bacteria on Phosphorus Adsorption Capacity of Soils with Different Phosphorus Contents |
| title_fullStr | Differential Effects of Inoculation with Earthworms and Phosphate-Solubilizing Bacteria on Phosphorus Adsorption Capacity of Soils with Different Phosphorus Contents |
| title_full_unstemmed | Differential Effects of Inoculation with Earthworms and Phosphate-Solubilizing Bacteria on Phosphorus Adsorption Capacity of Soils with Different Phosphorus Contents |
| title_short | Differential Effects of Inoculation with Earthworms and Phosphate-Solubilizing Bacteria on Phosphorus Adsorption Capacity of Soils with Different Phosphorus Contents |
| title_sort | differential effects of inoculation with earthworms and phosphate solubilizing bacteria on phosphorus adsorption capacity of soils with different phosphorus contents |
| topic | earthworms phosphate-solubilizing bacteria phosphorus adsorption phosphorus desorption |
| url | https://www.mdpi.com/2073-4395/15/3/659 |
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