Abstract

Imidacloprid is known to induce soil pollution. Herein, we improved phytoremediation of soil contaminated with imidacoprid using Plantago major plus effective microorganisms (EM1) and peat-moss under laboratory conditions for 14-days and using P. major inoculated with EM1 in tomato field for 10-days. Concentration of imidacloprid in soil, roots and leaves was determined. Concentrations of Chlorophyll in leaves were also determined. Our results showed that lower imidacloprid degradation rate was observed in amended soil with peat–moss, while higher imidacloprid degradation rate was observed in soils vegetated with P. major, P. major inoculated by EM1, and P. major amended with peat–moss, respectively. However, degradation rate was high in the case of interaction between soil planted with P. major plus both of EM1 and peat-moss. Concentration of imidacloprid in P. major roots amended with EM1, peat–moss and both was significantly lower than that of P. major roots alone within 1–14 days of treatment. EM1 plus P. major and peat- moss plus P. major had increase of Chlorophyl content in leaves. Cultivation of P. major next to tomatoes crop and inoculated with EM-1 was found to be the most effective process for removing imidacloprid from the soil.

摘要

已知吡虫啉会引起土壤污染。在本文中，我们在实验室条件下使用车前草加有效微生物（EM1）和泥炭藓，并在番茄田中使用接种了EM1的大叶蝉10天，改善了被吡虫啉污染的土壤的植物修复。测定吡虫啉在土壤，根和叶中的浓度。还测定了叶中的叶绿素浓度。我们的研究结果表明，改良土，观察与泥炭下吡虫啉降解速率，而在植被与土壤中观察到更高的吡虫啉降解速率大山雀，大山雀接种由EM1和大山雀分别用泥炭苔藓修正。然而，在土壤中种植大假单胞菌加上EM1和泥炭苔藓之间的相互作用时，降解率很高。在处理后的1至14天内，吡虫啉在EM。，泥炭苔藓中的主要根系浓度均显着低于单独的P.主要根系。EM1 + P. major和泥炭藓+ P. major的叶绿素含量增加。培养P.主要旁边的西红柿作物，并用EM-1接种被认为是从土壤中移出吡虫啉最有效的过程。