2011•Journal of Foshan UniversityRequires access
Effect of nitrogen on behavior of heavy metals in soil-plant system
Liang Xu-hui
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Abstract
Nitrogen(N) can affect the absorption and desorption and change the form and the activity of heavy metals in soil,affecting their uptake and accumulation by plants.The change in soil pH led to different effect of different N on the absorption and desorption of heavy metals.Significant negative correlation was found between soil pH and water-soluble heavy metal.Effects of nitrogen fertilizer on the soil influence the transformation of heavy metals in soil mainly through changes in pH value.The accumulation contents of heavy metals in plants were significantly affected by different nitrogen forms and nitrogen level.