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首页> 外文期刊>Research Journal of Soil Biology >Effect of Sewage Sludge Urban Application on Concentration of Fe, Mn and Some Nutrient Element in Parsley
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Effect of Sewage Sludge Urban Application on Concentration of Fe, Mn and Some Nutrient Element in Parsley

机译：城市污水污泥对欧芹中铁，锰和某些营养元素含量的影响

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Sewage sludge application on agricultural land as an organic fertilizer the recycling of valuable components such as many plant nutrients. Sewage sludge is rich in macro and micronutrients. However, high concentrations of heavy metals in sludge may cause pollution of soil, groundwater and the human food chain because of toxic metal uptake by crops. The objective of this research was to investigate the effect of sewage sludge application on concentration of iron and manganese in parsley. This study were carried out in a factorial experiment in a completely randomized design with three replications in greenhouse condition. The amounts of 0, 1, 2, 4, 8 and 16% of the soil dry weight of the sewage sludge were added to the pots having soil of three areas (Baharan, Najvan and Shakrekord). Parsley seeds were planted in the pots and was harvested in five leaf stage. The sewage sludge application did not significantly affect soil pH , but EC was increased by 71-107% in 16% of sewage sludge in the three soils. Also, sewage sludge application significantly increased by 22-54 and 23-27% the concentrations of P and K in soils, respectively. In Shakrekord area, using the sewage sludge had a significant effect on concentration of Fe in parsley and increased by 27% in 16% of sewage sludge . In Najvan area, the application of sewage sludge (with the exception of 16% level) significantly increased by 5-17% the concentrations of Mn in parsley.
机译：农田污泥作为有机肥料施用，可回收宝贵的成分，例如许多植物养分。污水污泥富含微量元素和微量元素。但是，由于农作物吸收有毒金属，污泥中的重金属含量高可能会污染土壤，地下水和人类食物链。这项研究的目的是研究污水污泥对欧芹中铁和锰浓度的影响。这项研究是在完全随机设计的阶乘实验中进行的，在温室条件下进行了三次重复。将污泥的土壤干重的0、1、2、4、8和16％的量添加到具有三个区域（Baharan，Najvan和Shakrekord）的土壤的盆中。欧芹种子种植在盆中，并在五叶期收获。污水污泥的施用并未显着影响土壤的pH值，但在三种土壤中，污水污泥中16％的EC升高了71-107％。同样，污水污泥的施用显着增加了土壤中磷和钾的浓度22-54％和23-27％。在Shakrekord地区，使用污水污泥对欧芹中的Fe浓度具有显着影响，在16％的污水污泥中增加了27％。在纳伊凡地区，下水污泥的施用（16％的含量除外）使欧芹中的Mn浓度显着提高了5-17％。

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