Persistence and sorption behaviour of flubendiamide in two different Indian soils as affected by maize stalk biochar was studied. The persistence was more in West Bengal soil (178.6 days) than Sikkim soil (165.3 days) at 10 µg g⁻¹ fortification level. Biochar amendment addition to soil at 5% enhanced the degradation process and half-life (T_1/2) values were 103.5 and 117.4 days, respectively for biochar amended Sikkim and West Bengal soil. Sorption study through batch equilibrium method resulted the 4 h equilibrium time with adsorption 6.22% ± 0.16% and 5.26% ± 0.16% in Sikkim and West Bengal soil, respectively. Biochar addition at 5% increased the adsorption of flubendiamide to 8.12% ± 0.16% and 5.88% ± 0.16% indicating a greater influence in this process. The adsorption was more in biochar amended Sikkim soil than West Bengal soil. The values of desorption was slower than adsorption indicating a hysteresis effect having hysteresis coefficient (H₁) ranges between 0.025 and 0.151 in two test soils.

中文翻译：

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低成本生物质衍生生物炭对氟苯二酰胺在土壤中的持久性和吸附行为的修正。

研究了氟苯二酰胺在两种不同的印度土壤中受玉米秸秆生物炭影响的持久性和吸附行为。在设防浓度为10 µg g ^{-1的情况下，}西孟加拉邦的土壤（178.6天）比锡金土壤（165.3天）的持久性更高。在土壤中添加5％的生物炭改良剂可增强降解过程和半衰期（T _1/2锡金和西孟加拉邦的生物炭改良值分别为103.5天和117.4天。通过间歇平衡法进行的吸附研究得出4 h的平衡时间分别在锡金和西孟加拉邦土壤中吸附了6.22％±0.16％和5.26％±0.16％。添加5％的生物炭将氟苯二酰胺的吸附率提高到8.12％±0.16％和5.88％±0.16％，表明在此过程中影响更大。在生物炭改良的锡金土壤中的吸附比西孟加拉邦的土壤更多。解吸的值比吸附慢，表明在两种试验土壤中的磁滞效应的磁滞系数（H ₁）在0.025至0.151之间。