期刊论文

中文

水土保持学报

1009-2242

2014

28

1

281-288

10.3969/j.issn.1009-2242.2014.01.054

国家自然科学基金项目（50874046） 湖南省教育厅科技项目（08A032） “863”计划重点项目（2010AA065203）

本校为第一机构

采用田间试验研究镉污染稻田土壤赤泥与猪粪配施对水稻抗氧化酶系统及镉吸收效果的影响。结果表明,稻谷产量在一定赤泥/猪粪比施用量范围内增加,但超过一定施用量后反而有所下降。早、晚稻水稻株高、有效穗、结实率和千粒重的变化趋势与稻谷产量的变化趋势基本一致;随着赤泥/猪粪比的增加,早、晚稻土壤有效态Cd含量逐渐降低。赤泥与猪粪配施可维持叶片中超氧化物岐化酶(SOD)和过氧化物酶(POD)的较高生理活性,降低丙二醛(MDA)含量,从而改善细胞内活性氧产生与清除之间的平衡关系。 随着赤泥/猪粪比的增大,水稻糙米中镉含量逐渐减少。赤泥与猪粪配施对重金属Cd污染土壤的改良效应,存在一个最适配比...

Field plot experiments were carried out to investigate the effects of combined apphcatlon ot red mud and pig manure on growth and antioxidant system of rice and Cd uptake in Cd-contaminated paddy soil. The results showed that grain yield increased under certain range of ratio of red mud and pig manure, but it decreased when the ratio was further increasing. The changing trend of plant height, effective panicles per plant, filled grain percent and one-thousand-grain weight was almost the same as that of grain yield in both early and late rice. W...