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首页> 外文期刊>Fresenius environmental bulletin >EFFECT OF TREATED SEWAGE SLUDGE APPLICATIONS ON HEAVY METAL CONCENTRATIONS OF CORN AND SECOND CROP WHEAT GROWN IN SANDY LOAM SOIL
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EFFECT OF TREATED SEWAGE SLUDGE APPLICATIONS ON HEAVY METAL CONCENTRATIONS OF CORN AND SECOND CROP WHEAT GROWN IN SANDY LOAM SOIL

机译：污水处理污泥对砂壤土土壤玉米重金属和玉米第二季小麦重金属含量的影响

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The objective of this study is to determine effect of treated sewage sludge (TSS) rates and mineral fertilizer applications on heavy metal concentrations of corn and second crop wheat grown in a sandy loam soil. The experiment was conducted in the experimental fields of Ege Agricultural Research Institute during 2011-2012 in Menemen-Izmir. Study area is in the Western Anatolia region of Turkey (38o56,87.96"-38o56,91.02"N; 27o03, 57.52"-27o03,58.61 "E). The field study was conducted in 20 parcels in a randomized-block design with four replications and five different applications including control, mineral fertilizer, treated sewage sludge 12.5 t.ha-1; 25.0 t.ha-1; 37.5 t.ha-1 as dry matter. The parcels dimensions were 3 m width and 3 m length. Corn (Zea mays L. var. ZP 737) was the first crop, wheat (Triticum durum L. var. Ege 88) was second crop. Corn and second crop wheat samples were taken at the end of vegetation periods in two years. Increasing TSS applications to soil resulted in significantly increased concentrations of Pb in corn grain. But it was under threshold values. The heavy metal contents of corn seeds were within the normal limits for Cr, Cu, Ni, Pb and Zn while Cd was not present in corn seeds. On the other hand the heavy metal contents of second crop wheat seeds were within the normal limits for Cd, Cr, Cu, Ni and Zn while Pb was not present in wheat seeds.
机译：这项研究的目的是确定处理的污水污泥（TSS）速率和矿物肥料的施用对在沙壤土上生长的玉米和第二季小麦的重金属含量的影响。该实验于2011年至2012年在Menemen-Izmir的Ege农业研究所的实验领域中进行。研究区域位于土耳其的安纳托利亚西部地区（北38o56,87.96“ -38o56,91.02”; 27o03、57.52“ -27o03、58.61” E）。田间研究是在20个包裹中以随机区组设计进行的，具有四次重复和五种不同的应用，包括控制，矿物肥料，处理过的污泥12.5 t.ha-1; 25.0公顷ha-1; 37.5 t.ha-1作为干物质。包裹尺寸为3 m宽和3 m长。玉米（Zea mays L. var。ZP 737）是第一作物，小麦（Triticum durum L. var。Ege 88）是第二作物。在两年的植被期结束时采集了玉米和第二季小麦样品。 TSS在土壤中的施用量增加，导致玉米籽粒中Pb的浓度显着增加。但这是在阈值之下。玉米种子中的重金属含量在Cr，Cu，Ni，Pb和Zn的正常限度内，而Cd在玉米种子中不存在。另一方面，第二茬小麦种子的重金属含量在Cd，Cr，Cu，Ni和Zn的正常限度内，而Pb在小麦种子中不存在。

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