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首页> 美国卫生研究院文献>Journal of Pesticide Science >Performance evaluation of lysimeter experiments for simulating pesticide dissipation in paddy fields. Part 2: Nursery-box application and foliar application
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Performance evaluation of lysimeter experiments for simulating pesticide dissipation in paddy fields. Part 2: Nursery-box application and foliar application

机译：溶渗仪模拟稻田农药消散的实验性能评估。第2部分：育儿箱应用和叶面应用

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Comparative experiments investigating the dissipation of four nursery-box-applied pesticides and three foliar-applied pesticides were conducted using lysimeters and in actual paddy fields. In the lysimeter experiments, there were test plots for submerged application for both application types. Analytical concentrations of the pesticides in paddy water were evaluated using appropriate kinetic models. The detection levels of pesticides in the paddy water for the nursery-box and foliar applications were 10–77% and 42–79% of the submerged application, respectively. The times required for 50% dissipation (DT50s) in case of the nursery-box and foliar applications were 0.8–10.4 days and 0.5–2.7 days, respectively. Although overall dissipations were affected by the physicochemical properties of the pesticide and the experimental design in the test plots, the initial detection levels in the lysimeters, governed by the runoff at transplanting and the deposition at spraying, were comparable with those in the actual paddy fields.
机译：使用溶渗仪和在实际的稻田中进行了比较实验，调查了四种育苗箱施用的农药和三种叶面施用的农药的消散情况。在溶渗仪实验中，有两种应用类型的浸没式测试图。使用适当的动力学模型评估稻田水中农药的分析浓度。育苗箱和叶面施用稻田水中农药的检出水平分别为淹没施用的10–77％和42–79％。在苗圃箱和叶面施药情况下，50％耗散时间（DT50s）分别为0.8–10.4天和0.5–2.7天。尽管总体耗散量受农药的理化特性和试验区中的试验设计的影响，但溶菌仪中的初始检测水平受实际稻田的影响，该水平由移栽时的径流和喷洒时的沉积决定。 。

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