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首页> 外文期刊>Journal of Residuals Science & Technology >Soybean Phytotoxicity from Land-Applied Biosolids
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Soybean Phytotoxicity from Land-Applied Biosolids

机译：土地施用的生物固体对大豆的植物毒性

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In 1999, marginal and entire leaf necrosis, interveinal chlorosis, leaf puckering and crinkling, and stunted overall growth were observed in field-grown soybeans (Glycine max L.) in Essex County, Virginia. The soybeans had been fertilized with biosolids treated by the Zimpro? wet air oxidation process at the Passaic Valley Sewerage Commission (PVSC) Newark, NJ wastewater treatment plant. Our objectives were (1) to replicate the symptoms in the greenhouse using soils collected from fields where phytotoxicity symptoms were observed and (2) to determine whether the causative agent was a constituent in the primary sludge or was produced by the Zimpro? treatment process. We replicated the field phytotoxicity symptoms in the greenhouse in soybeans grown in Zimpro? biosolids-amended field soils from Essex County and in soils amended with Zimpro?-processed biosolids obtained from PVSC. Soybeans grown in soil amended with untreated primary sludge from PVSC had phytotoxic symptoms that were generally atypical of those observed in the field but may have masked symptoms more similar to those of the field-grown soybeans. We were thus unable to determine whether the toxicant was present in the primary sludge or was a product of the Zimpro? process. We were also unable to identify any common inorganic element as the cause of the reduction in the growth and development of the field-grown soybeans. We hypothesize that the toxicant may have been a persistent organic compound whose slow degradation in the soil was able to cause phytotoxicity several years after biosolids land application.
机译：1999年，在弗吉尼亚州埃塞克斯郡的田间种植的大豆（Glycine max L.）中观察到边缘和整个叶片坏死，小叶间萎黄，皱褶和起皱以及整体生长受阻。大豆已通过Zimpro？处理过的生物固体施肥。新泽西州纽瓦克市Passaic山谷污水处理委员会（PVSC）的湿空气氧化工艺。我们的目标是（1）使用从观察到植物毒性症状的田地收集的土壤在温室中复制症状，以及（2）确定病原体是主要污泥的成分还是由Zimpro产生的？治疗过程。我们在Zimpro？种植的大豆中的温室中复制了田间植物毒性症状。埃塞克斯郡的生物固体改良田间土壤，以及由Zimpro？处理过的从PVSC获得的生物固体改良的土壤。在土壤中生长的大豆用未处理过的PVSC原始污泥进行了改良，其植物毒性症状通常不像田间观察到的那样典型，但其掩盖症状与田间种植的大豆更相似。因此，我们无法确定主要污泥中是否存在有毒物质，还是Zimpro的产物？处理。我们也无法确定任何常见的无机元素是导致田间种植大豆生长发育减少的原因。我们假设有毒物质可能是一种持久性有机化合物，其在土壤中的缓慢降解能够在生物固结土地应用后的数年内引起植物毒性。

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