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Dissipation of sulfosulfuron in different soils under laboratory conditions.

机译:实验室条件下磺胺磺隆在不同土壤中的消散。

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摘要

The safe and efficient use of sulfosulfuron would require knowledge of its dissipation behavior in different soil. To accomplish this task, a suitable and sophisticated method of estimation by HPLC was standardized. The dissipation behavior of sulfousulfuron at 25 and 50 g/ha was studied in three different soils under laboratory conditions. Compared to zero day incubation, the degradation in different soils applied at 25 g/ha at 30 days was 33 to 40%, whereas it was 44-53% at 50 g/ha. The degradation of sulfosulfuron was of first order kinetics. After four months of application, sulfosulfuron applied at 25 g/ha was found to degrade to the extent of 87.5, 91.9 and 89.6% in loamy sand, sandy loam and clay loam soils, respectively.
机译:安全有效地使用磺胺嘧啶需要了解其在不同土壤中的消散行为。为了完成此任务,通过HPLC估算了一种合适且复杂的估算方法。在实验室条件下,在三种不同的土壤中研究了硫磺隆在25和50 g / ha处的消散行为。与零日温育相比,在25 g / ha施用30天的不同土壤中的降解率为33%至40%,而在50 g / ha施用时为44-53%。磺磺隆的降解具有一级动力学。在施用四个月后,发现在砂质壤土,砂质壤土和粘土质壤土中,以25 g / ha的比例施用磺胺嘧啶的降解程度分别为87.5、91.9和89.6%。

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