文献类型： 外文期刊

作者： Alharbi, Khadiga ¹ ; Hafez, Emad M. ² ; Elhawat, Nevien ⁴ ; Omara, Alaa El-Dein ⁶ ; Rashwan, Emadelden ⁷ ; Mohamed, Hossam H. ⁸ ; Alshaal, Tarek ⁴ ; Gadow, Samir I. ¹⁰ ;

作者机构： 1.Princess Nourah bint Abdulrahman Univ, Coll Sci, Dept Biol, POB 84428, Riyadh 11671, Saudi Arabia

2.Kafrelsheikh Univ, Fac Agr, Dept Agron, Kafr Al Sheikh 33516, Egypt

3.Jiangsu Acad Agr Sci, Inst Agr Resources & Environm, Nanjing 210014, Peoples R China

4.Univ Debrecen, Fac Agr & Food Sci & Environm Management, Dept Appl Plant Biol, Boszormeny Str 138, H-4032 Debrecen, Hungary

5.Al Azhar Univ, Fac Agr Girls, Tanta 31732, Egypt

6.Agr Res Ctr, Soils Water Environm Res Inst, Dept Microbiol, Giza 12112, Egypt

7.Tanta Univ, Fac Agr, Agron Dept, Tanta 31527, Egypt

8.Ain Shams Univ, Fac Agr, Agron Dept, Cairo 11566, Egypt

9.Kafrelsheikh Univ, Fac Agr, Soil & Water Dept, Kafr Al Sheikh 33516, Egypt

10.Natl Res Ctr, Agr & Biol Res Inst, Dept Agr Microbiol, 33 EI Buhouth St, Cairo 12622, Egypt

关键词： Cd-contaminated soil; soil salinity; soil enzymes; microbial activity; soil remediation; plant nutrition

期刊名称：PLANTS-BASEL （ 影响因子：4.1； 五年影响因子：4.5 ）

ISSN： 2223-7747

年卷期： 2024 年 13 卷 24 期

页码：

收录情况： SCI

摘要： Excessive irrigation of saline-alkaline soils with Cd-contaminated wastewater has resulted in deterioration of both soil and plant quality. To an investigate this, a study was conducted to explore the effects of biochar (applied at 10 t ha-1), PGPRs (Bradyrhizobium japonicum (USDA 110) + Trichoderma harzianum at 1:1 ratio), and Si-NPs (25 mg L-1) on soybean plants grown in saline-alkali soil irrigated with wastewater. The results showed that the trio-combination of biochar with PGPRs, (as soil amendments) and Si-NPs (as foliar spraying), was more effective than individual or coupled applications in reducing Cd bioavailability in the soil, minimizing its absorption, translocation and bioconcentration in soybean tissues. The trio-combination reduced Cd bioavailability in the soil by 39.1% and Cd accumulation in plant roots, shoots, and seeds by 61.0%, 69.3%, and 61.1%, respectively. Physiological improvements in soybean plants were also observed, including 197.8% increase in root growth, 209.3% increase in chlorophyll content, and 297.4% increase in carotenoid levels. The trio-combination significantly improved soil physicochemical characteristics, enhanced soil microbial indicators and boosted soil enzymes activity, which in turn facilitated nutrient uptake and increased antioxidant enzymes activity. These positive outcomes enhanced photosynthesis, improved productivity and increased seed nutritional value. Overall, the trio-combination of biochar with PGPRs and Si-NPs are considered a reliable approach not only for revitalizing soybean growth but also for immobilizing Cd and improving soil health under wastewater irrigation.