期刊论文

中文

农业资源与环境学报

2095-6819

2016

33

5

466-476

10.13254/j.jare.2016.0080

4121511:国家自然科学基金 08JJ6018:湖南省自然科学基金 12B059:湖南省教育厅青年项目 2014137:湖南省农业厅项目

本校为第一机构

通过大田正交试验，研究添加赤泥和有机肥对Cd、Pb在土壤-水稻系统中分布规律的影响。结果表明，添加赤泥或有机肥后，水稻根际土壤pH值升高0.36~1.90个单位，根际土壤中Cd、Pb含量分别降低2.73%~26.25%和7.15%~34.26%，糙米中Cd和Pb含量分别降低23.24%~55.90%和11.76%~29.41%，其中单施赤泥效果最好，其次是配施，单施有机肥最差。添加赤泥和有机肥后，水稻各器官中Cd和Pb含量显著降低，不同生育期Cd和Pb的贡献率明显改变，且添加量及施肥方式（单施、配施）也有显著影响。与CK相比，降Cd效果最好的是单施赤泥4000 kg·hm-2，降幅为55.90%；降Pb效果最好的是赤泥（4000 kg·hm-2）与有机肥（10...

Effects of red mud and organic fertilizer on distribution of cadmium （Cd） and lead （Pb） in soil-rice system were studied in field by orthogonal test. Results showed that after red mud and organic fertilizer added including single and combined, the soil pH value increased 0.36-1.90 units, contents of Cd and Pb in rice rhizosphere soil decreased 2.73%-26.25% and 7.15%-34.26% respectively and contents of Cd and Pb in brown rice decreased 23.24%-55.90% and 11.76%-29.41% respectively. In all treatments, single red mud was best, followed by red m...