Effects of Different Organic Materials and Exogenous Zn on Zn Distribution in Soil
A pot experiment with a complete combinatorial design of two factors was conducted to study the effects of different organic materials and different concentrations of exogenous zinc on the soil total zinc, available zinc, zinc forms and zinc content distribution of pak-choi. The results showed that...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Agro-Environmental Protection Institute, Ministry of Agriculture
2015-06-01
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| Series: | Journal of Agricultural Resources and Environment |
| Subjects: | |
| Online Access: | http://www.aed.org.cn/nyzyyhjxb/html/2015/3/20150308.htm |
| Summary: | A pot experiment with a complete combinatorial design of two factors was conducted to study the effects of different organic materials and different concentrations of exogenous zinc on the soil total zinc, available zinc, zinc forms and zinc content distribution of pak-choi. The results showed that the total zinc, available zinc, and different forms of zinc contents in soil all increased as the concentration of exogenous zinc increased. Both lawn grass and maize straw decreased the total zinc, increased the available zinc and no-residual zinc in soil effectively, and promoted the accumulation of zinc in pak-choi. Chicken manure, pig manure, and cattle manure improved the total zinc, available zinc and no-residual zinc in soil significantly, and enhanced the activity of zinc in soil, and promoted the accumulation of zinc in pak-choi significantly. Peat and weathered coal both increased the organic zinc and residual zinc in soil effectively, decreased the total zinc and available zinc, showing the passivating effect to zinc of soil, and failed to promote the accumulation of zinc in pak-choi. The concentration of zinc in pak-choi root increased as the concentration of exogenous zinc increased. |
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| ISSN: | 2095-6819 2095-6819 |