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首页> 外文学位 >Effects of sludge amendments on soil cation exchange capacity, organic matter, and subsequent heavy metal uptake by vegetables.
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Effects of sludge amendments on soil cation exchange capacity, organic matter, and subsequent heavy metal uptake by vegetables.

机译：污泥改良剂对土壤阳离子交换能力，有机质和随后蔬菜吸收重金属的影响。

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摘要

Sewage sludge compost or leaf compost was applied to garden vegetable plots at the rate of 110 metric tons/hectare per year for four consecutive years to determine the influence of soil amendments on soil cation exchange capacity and on soil organic matter. The effect of soil amendments an zinc and cadmium uptake by various species of garden vegetables was also evaluated in light of changes of these soil properties.;Sludge compost treatments increased soil cation exchange capacity, whereas leaf compost did not. In contrast, soil organic matter increased in both leaf compost and sludge compost-treated soil compared to control. Cadmium and zinc levels in soil increased following sludge treatment, but applications of leaf compost caused no significant change.;Swiss chard (Beta vulgaris L., cv. Cicla, Fordhook Giant) absorbed less zinc and cadmium from sludge compost-amended soil compared to control. Similarly, beet (Beta vulgaris, L., cv. Red Ball) leaves grown in sludge compost soil showed lower zinc and cadmium content than those grown in control plots. Metal content of leaves or roots in radish (Raphanus sativus L.) was not affected by compost-amended soil. (Abstract shortened by UMI.)
机译：连续四年将污泥堆肥或叶堆肥以每年110公吨/公顷的速度施用于花园菜地，以确定土壤改良剂对土壤阳离子交换能力和土壤有机质的影响。还根据土壤性质的变化评估了土壤改良剂对各种菜园蔬菜吸收锌和镉的影响。污泥堆肥处理增加了土壤阳离子交换能力，而叶子堆肥则没有。相反，与对照相比，叶片堆肥和污泥堆肥处理过的土壤中的有机质均增加。污泥处理后土壤中的镉和锌含量增加，但施用叶片堆肥后没有显着变化。瑞士甜菜（Beta vulgarisL。控制。同样，在污泥堆肥土壤中生长的甜菜叶（Beta vulgaris，L.，cv。Red Ball）显示的锌和镉含量低于对照样地中的锌和镉含量。萝卜（Raphanus sativus L.）叶片或根的金属含量不受堆肥改良土壤的影响。 （摘要由UMI缩短。）

著录项

  • 作者

    Abdi, Ahmed N.;

  • 作者单位

    Hood College.;

  • 授予单位 Hood College.;
  • 学科 Biogeochemistry.;Agriculture Soil Science.
  • 学位 M.A.
  • 年度 1987
  • 页码 49 p.
  • 总页数 49
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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