4.7 Article

Phytomanagement of metal-contaminated agricultural land using sunflower, maize and tobacco

期刊

AGRICULTURE ECOSYSTEMS & ENVIRONMENT
卷 136, 期 1-2, 页码 49-58

出版社

ELSEVIER
DOI: 10.1016/j.agee.2009.11.007

关键词

Long-term field experiment; Elemental sulphur; NTA; Phytoextraction; Phytomanagement

资金

  1. Federal Office for Education and Science [859]

向作者/读者索取更多资源

We investigated the long-term effectiveness of phytomanagement (the combination of profitable crop production with the gradual reduction Of Soil contamination by phytoextraction) to deal with moderately metal-contaminated agricultural land. In a 6-year field experiment, we grew maize (Zea mays L), sunflower (Helianthus annuus L.) and tobacco (Nicotiana tabacum L.) in crop rotation. The addition of elemental sulphur(2136 kg ha(-1) yr(-1)) decreased the soil pH from 7.4 to 6.7, increased the Zn accumulation by maize, sunflower and tobacco by factors of 1.3, 1.4 and 1.2, respectively, and increased the Cd accumulation by tobacco 1.3-fold. Neither the addition of ammonium sulphate (129 kg ha(-)1 yr(-1)) nor nitrilotri acetic acid (NTA, 430 kg ha(-1) yr(-1)) significantly increased phytoextraction. The results show that phytoextraction for soil cleansing would require centuries. However, this land could be used to generate profitable crops, including the production of safe (low Cd) stock fodder fortified with Zn, green manure for micronutrient-deficient soils, or bioenergy. (C) 2009 Elsevier B.V. All rights reserved.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.7
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据