Department of Soil Science, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran.
Int J Phytoremediation. 2024;26(4):504-523. doi: 10.1080/15226514.2023.2250464. Epub 2023 Sep 4.
Ethylenediamine-N,N'-disuccinic acid (EDDS) has been studied extensively for its potential use as an amendment in agriculture due to its numerous beneficial properties. The widespread usage of microplastics (MPs) poses a growing threat to plant growth. This study investigated the effects of Polystyrene MPs (PSMPs) and EDDS on soil pH, EC, organic matter (OM), available nutrients, and maize ( L.) growth in a calcareous soil. Results showed that both PS and EDDS had significant effects on soil pH, with higher concentrations leading to a decrease in pH. PSMPs negatively impacted soil health by increasing EC and decreasing OM, nitrogen (N), phosphorus (P), and potassium (K). EDDS had potential applications in soil remediation and phytoremediation by decreasing EC and increasing N, P, and K. The interaction between EDDS and PSMPs suggests that their effects on soil pH may be modulated by each other. The study highlights the potential negative impacts of high concentrations of PS on soil health and the potential benefits of using EDDS at lower concentrations in soil remediation and phytoremediation. However, further research is needed to understand the mechanisms and environmental impacts of EDDS and the combined effects of EDDS and PSMPs on soil properties and plant growth.
乙二胺二琥珀酸（EDDS）因其众多有益特性而被广泛研究作为农业改良剂。微塑料（MPs）的广泛使用对植物生长构成了越来越大的威胁。本研究调查了聚苯乙烯 MPs（PSMPs）和 EDDS 对石灰性土壤中土壤 pH、电导率（EC）、有机质（OM）、有效养分和玉米（ L.）生长的影响。结果表明，PS 和 EDDS 对土壤 pH 均有显著影响，较高浓度会导致 pH 值降低。PSMPs 通过增加 EC 和减少 OM、氮（N）、磷（P）和钾（K）来损害土壤健康。EDDS 通过降低 EC 和增加 N、P 和 K，在土壤修复和植物修复中具有潜在的应用前景。EDDS 和 PSMPs 之间的相互作用表明，它们对土壤 pH 的影响可能相互调节。该研究强调了高浓度 PS 对土壤健康的潜在负面影响，以及在土壤修复和植物修复中使用低浓度 EDDS 的潜在益处。然而，需要进一步研究以了解 EDDS 的机制和环境影响以及 EDDS 和 PSMPs 对土壤性质和植物生长的综合影响。
