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Removing Nutrients and Pesticides from Runoff Water Using Natural systems

机译：使用天然系统从径流水中取出营养和杀虫剂

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Landscape plant and greenhouse production rely on an adequate supply of nutrients to achieve profitable growth rates and the application of supplemental chemicals in the form of pesticides and growth regulators to control insect pests and plant fungaland bacterial pathogens and to guide plant development. Currently, only the use of pesticides and some growth regulators, e.g.’ daminozide, are under regulatory agency directed use and disposal gxiidelines. However in the near future, state environmental agencies are likely to come under increased pressure from federal agencies and special interest groups to further improve water quality. Pollutants originating from horticultural practices will include not only pesticides and growth regulators but will include the nitrogen and phosphorus components from fertilizers. Today, horticultural enterprises are considered non-point sources of pollutants and thus have fewer regulatory requirements to meet compared to point source polluters, e.g., industry andsewage treatment plants. How individual states will approach regulation to achieve cleaner waters is unknown but they are likely to use one of two approaches, the maximum contaminant level (MCL), which sets the maximum concentration of a pollutant that can be discharged into surface waters, or the total maximum daily load, which sets the maximum quantity of a pollutant that can be discharged into surface waters each day. Either approach will have dramatic impacts on how nurseries and greenhouses will deal with their irrigation runoff.
机译：景观植物和温室生产依赖于充足的营养供应，实现盈利增长率，以杀虫剂和生长调节剂的形式应用补充化学品，以控制害虫和植物充满药物的细菌病原体并导向植物发育。目前，只有使用杀虫剂和一些生长调节因子，例如，“塞哌啶胺”正在监管机构指导使用和处置GXIIDelines。然而，在不久的将来，国家环境机构可能会受到联邦机构和特殊利益集团的压力增加，以进一步提高水质。源自园艺实践的污染物不仅包括杀虫剂和生长调节剂，而且包括来自肥料的氮和磷成分。如今，园艺企业被认为是非点污染源的来源，因此与点来源污染物相比，符合较少的监管要求，例如，工业和组播处理厂。单个国家将如何处理调节以实现更清洁的水域未知，但它们可能使用两种方法中的一种，最大污染物水平（MCL），该污染物的最大浓度可以排放到表面水域或总数最大每日负荷，该载荷设置污染物的最大数量每天可排入表面水域。任何一种方法都会对苗圃和温室如何处理他们的灌溉径流产生巨大影响。

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