Effects of Cultivation Age and Fertilization on Cd Accumulation in Greenhouse Soils, Northeast China

Abstract:

The study was carried out at the base for the production of greenhouse vegetables located in Damintun Town of Xinmin City. A series of experiments (e.g. a field investigation and plot experiment) was conduced to clarify the origin and accumulation of the heavy metal cadmium (Cd) in greenhouse soils under different years of culitivation. The field investigation study revealed that the contents of heavy metal Cd of the sample soils exceeded Class I criteria (Cd≤0.2mg•kg-1) but no soil samples exceeded Class III. The results from the field plot experiment showed that contents of Cd in all greenhouse soils (after 1, 2 or 5 years of cultivation) were increased with the amount of manure applied. This suggested the potential risk of Cd pollution would be increased with the age of cultivation in the greenhouse soils and the accumulation of Cd in the greenhouse soils was mainly associated with the input of manures.

• Periodical: Advanced Materials Research (Volumes 610-613)
• Pages: 603-606
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.610-613.603
• Online since: December 2012
• Authors: Yi Shi*, Jun Wang, Guang Yu Chi, Xin Chen
• Keywords: Cd Accumulation, Greenhouse Soils, Plant and Fertilization

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