To elucidate the fate of azoxystrobin and combination formulation of trifloxystrobin and tebuconazole in isabgol ecosystem, a simple and efficient analytical method was developed using QuEChERS (quick, easy, cheap, effective, rugged and safe) extraction method followed by analysis in gas chromatography combined with electron capture and nitrogen-phosphorus detector. The method gave very good overall mean recoveries in the range of 69–91%. The limit of quantification were 65, 25, 40 μg kg⁻¹ for azoxystrobin, trifloxystrobin and tebuconazole in isabgol herbage, respectively. The values for corresponding fungicide in soil were 50, 25 and 25 μg kg⁻¹, for isabgol seed with husk were 80, 50 and 75 μg kg⁻¹, respectively. The results revealed that the dissipation pattern of studied fungicides in the soil and isabgol herbage followed first-order kinetics. The half-life of trifloxystrobin in isabgol herbage were shorter (3.0–3.3 days) than tebuconazole (5.1–5.6 days) and azoxystrobin (5.5–7.7 days). Similarly soil half-lives were also shorter for trifloxystrobin (5.0–6.1 days) as compared to tebuconazole (7.9–8.6 days) and azoxystrobin (8.4–10.0 days). The residues of these fungicides in soil, isabgol herbage and seed with husk at harvest were below the detectable limit which supports the application of these fungicides in the management of fungal diseases in isabgol.

为了阐明唑菌酯的命运以及三唑菌酯和戊唑醇的组合制剂在伊莎博格尔生态系统中的作用，开发了一种使用QuEChERS（快速，简便，便宜，有效，坚固耐用和安全）提取方法的简单高效的分析方法，然后在气相色谱仪中结合分析电子捕获和氮磷检测器。该方法的总体平均回收率非常高，在69-91％的范围内。依沙博尔牧草中的嘧菌酯，三氟草酮和戊唑醇的定量限分别为65、25、40μgkg ^-1。土壤中相应的杀菌剂的值为50、25和25μgkg ^-1，带壳的伊莎包酚种子的值为80、50和75μgkg ^-1， 分别。结果表明，所研究的杀菌剂在土壤和伊莎固醇草中的耗散模式遵循一级动力学。异丁烯三酸草酯中三氟精酮的半衰期（3.0-3.3天）比戊丁康唑（5.1-5.6天）和嘧菌酯（5.5-7.7天）短。类似地，三氟精酮（5.0-6.1天）的土壤半衰期也比戊丁康唑（7.9-8.6天）和嘧菌酯（8.4-10.0天）短。这些杀真菌剂在收获时带有土壤的果壳，伊萨博果草和种子中的残留量低于可检测限，这支持了这些杀真菌剂在伊萨博尔真菌病害防治中的应用。