Study on the Dynamic Changes of Heavy Metals Contents under Different Soil Types of Winter Wheat

Abstract

Abstract: In order to assure safety and high quality wheat production and study the effects of heavy metals on different soil types and qualities, the dynamic changes of As, Pb, Hg, Cr and Cd contents were determined in different periods (before sowing, elongation and after harvesting) in field according to different soil types and qualities. The results showed that the average contents determined in soils didn’t exceed the criterion of National Standards, the highest contents of heavy metals in soil were gotten during elongation stage, and the effects of elongation stage and after harvesting sample stages on the contents of heavy metals reached the significance level compared with before sowing except Hg. The effects of different soil qualities on the contents of heavy metals didn’t reach. The demonstration area in Hebi city was suitable for safety and high quality wheat production. The monitoring on the contents of soil heavy metals should be paid more attentions in elongation stage of wheat.

CLC Number:

X524

Ji Xingjie, Xiong Shuping, Liu Yuandong, Ma Xinming, He Jianguo, Liu Musen, Zhang Juanjuan. Study on the Dynamic Changes of Heavy Metals Contents under Different Soil Types of Winter Wheat[J]. Chinese Agricultural Science Bulletin, 2007, 23(5): 364-364.

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