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首页> 外文会议>3rd International Symposium on Geotechnics Related to the European Environment, Jun 21-23, 2000, Berlin, Germany >Evaluation of heavy metal pollution in barley crops fertilised with Municipal Solid Waste compost
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Evaluation of heavy metal pollution in barley crops fertilised with Municipal Solid Waste compost

机译：城市固体废弃物堆肥施肥的大麦作物重金属污染评价

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摘要

A long-term field experiment with barley has been conducted at Santa Olalla (Toledo, Spain). The experiment was performed on plots in four blocks, applying different treatments of MSW compost at two rates (20 and 80t/ha), cow manure at 20t/ha, mineral fertilisation and a control to determine the effects of these treatments on a barley crop. The treatments were applied during three consecutive years, followed by three years of no application and two years of repeated addition of all treatments. In the last year of the experiment at harvest time, plant samples (grain and straw) were collected for analyses. No heavy metal contamination was observed in plants, but in the compost treatments the contents of Zn increased while Mn decreased both in grain and straw. The analyses of other heavy metals demonstrate the absence of pollution or toxic levels even in the highest dose of compost after a long-term application.
机译：在西班牙托莱多的圣奥拉拉（Santa Olalla）进行了大麦的长期田间试验。该实验在四个区块的地块上进行，以两种速率（20和80t / ha）施用不同的MSW堆肥处理，20t / ha的牛粪肥，矿物施肥和对照以确定这些处理对大麦作物的影响。连续三年应用治疗，然后三年不应用，两年重复添加所有治疗。在实验的最后一年收获时，收集了植物样本（谷物和稻草）进行分析。在植物中未观察到重金属污染，但在堆肥处理中，谷物和秸秆中的锌含量均增加，而锰含量则下降。对其他重金属的分析表明，即使长期施用后最高堆肥剂量也没有污染或毒性水平。

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