| Cite this article: | 孙向辉,蔡寒玉,赵京,等.黏土矿物与磷肥复配对潮土中镉钝化效果及麦苗镉吸收的影响[J].灌溉排水学报,0,():-. |
| SUN Xianghui,CAI Hanyu,ZHAO Jing,et al.黏土矿物与磷肥复配对潮土中镉钝化效果及麦苗镉吸收的影响[J].灌溉排水学报,0,():-. |
|
| |
|
|
| This article has been：Browse 1667Times Download 0Times |
|
|
|
| DOI： |
|
| Effects of Clays and Phosphate Fertilizer on Passivation and Uptake of Wheat at Seedling Stage in Fluvo-aquic Soil Contaminated with Cadmium |
|
SUN Xianghui1, CAI Hanyu1, ZHAO Jing1, TIAN Yingying1, DU Zhenjie2, NIU Decao1
|
|
1.Henan Institute of Technology;2.Farmland Irrigation Research Institute, Chinese Academy of Agricultural Sciences
|
| Abstract: |
| Abstract:【Objective】The purpose of this paper is to explore the effect of clays combined with phosphate fertilizer on cadmium(Cd) passivation in Fluvo-aquic soil and uptake of wheat at seedling stage, in order to provide reference for the treatment of Cd pollution of wheat in faintly alkaline soil of North China.【Method】Pot experiments was conducted to evaluate the effects of application sepiolite, attapulgite, bentonite and their compound treatments with potassium dihydrogen phosphate on soil pH, soil Cd availability, growth and Cd uptake of wheat.【Result】Different treatments could increase soil pH, significantly decrease the contents of soil available Cd by 5.84%~17.53%, promote the wheat growth at seedling stage, significantly reduce the Cd content in wheat shoot by 40.66% ? 63.35% and the Cd content in wheat root by 18.49% ? 38.83%. The passivation effect of Cd was sepiolite＞attapulgite＞bentonite，and further enhance the effect with the compound of phosphate fertilizer.【Conclusion】The combination of sepiolite and phosphate fertilizer was effective and feasible for in situ remediation of Cd pollution in Fluvo-aquic soil, 1% sepiolite combined with 0.04% phosphate fertilizer treatment could achieve ideal effect on soil Cd immobilization with low cost and little effect on soil pH. |
| Key words: Clays; Phosphate fertilizer; Fluvo-aquic soil; Cadmium; Wheat |
|
|
|
|
|
|
