四川农业大学学报 ›› 2016, Vol. 34 ›› Issue (03): 265-269,281.doi: 10.16036/j.issn.1000-2650.2016.03.001

• •    下一篇

镉胁迫下3种改良剂及其浸提物对水稻生长发育的影响

魏进1, 戴长庚1, 周玮2, 张盈1, 陈湘燕1   

  1. 1. 贵州省植物保护研究所, 贵阳 550006;
    2. 贵州省土壤肥料研究所, 贵阳 550006
  • 收稿日期:2016-06-29 出版日期:2016-09-30 发布日期:2017-02-15
  • 通讯作者: 陈湘燕,高级实验师,从事农产品质量安全检测研究,E-mail:526125464@qq.com。 E-mail:526125464@qq.com
  • 作者简介:魏进,硕士,助理研究员,从事环境中农药残留及微量元素的分离分析研究,E-mail:wwjj0084@126.com。
  • 基金资助:
    贵州省科学技术基金(黔科合J字LKN[2013]19号);贵州省科研机构服务企业行动计划(黔科合服企[2015]4012号)

Effects of Three Amendments and Its Extracts on the Growth and Development of Rice under Cadmium Stress

WEI Jin1, DAI Chang-geng1, ZHOU Wei2, ZHANG Ying1, CHEN Xiang-yan1   

  1. 1. Guizhou Institute of Plant Protection;
    2. Guizhou Institute of Soil and Fertilizer, Guiyang 550006, China
  • Received:2016-06-29 Online:2016-09-30 Published:2017-02-15

摘要: [目的] 通过在不同浓度重金属镉(Cd)胁迫下添加商品有机肥、泥炭和稻秆及其浸提物,以期获得不同物质对水稻生长发育的影响。[方法] 采用盆栽试验法,将有机肥、泥炭和稻秆及其浸提物分别添加到镉浓度分别为0.5、5.0和10.0 mg/kg的土壤中,并在水稻分蘖后期(移栽后60 d)测定其株高和分蘖数。[结果] ①低浓度0.5 mg/kg镉稻田中,按照对水稻生长发育影响大小依次为有机肥 > 泥炭浸提物 > 稻秆 > 有机肥浸提物 > 稻秆浸提物 > 泥炭;②中浓度5.0 mg/kg镉稻田中,按照修复效果大小依次为有机肥浸提物 > 有机肥 > 泥炭浸提物 > 泥炭 > 稻秆浸提物 > 稻秆;③高浓度10.0 mg/kg镉稻田中,按照修复效果大小依次为泥炭 > 有机肥浸提物 > 有机肥 > 稻秆 > 泥炭浸提物 > 稻秆浸提物。[结论] 在不同浓度的镉胁迫下,3种改良剂及其浸提物对水稻的生长发育影响不一致。因此,在稻田镉治理中,应该先考虑稻田镉污染浓度,然后考虑添加不同的改良剂和用量,以到达最佳的治理效果。

关键词: 镉胁迫, 水稻, 泥炭, 稻秆, 有机肥, 浸提物

Abstract: [Objective] This test was aimed to study the effects of commercial organic fertilizer, peat, rice straws and its extracts on the growth and development of rice under cadmium stress with different concentration. [Method] A pot culture experiment was conducted for comparing of the peat, rice straws, organic fertilizer and its extracts in the soil with cadmium concentrations 0.5, 5.0 and 10.0 mg/kg, respectively. The plant height and tiller were measured in the late tillering stage. [Results] ① Under Cd stress with 0.5 mg/kg concentration, the effects of different amendments and its extracts on the growth and development of rice increased as the order:organic fertilizer > peat' extract > rice straws > organic fertilizer' extract > rice straws' extract > peat;② Under Cd stress with 5.0 mg/kg concentration, the effects of different amendments and its extracts on the growth and development of rice increased as the order:organic fertilizer' extract > organic fertilizer > peat' extract > peat > rice straws' extract > rice straws;③ Under Cd stress with 10.0 mg/kg concentration, the effects of different amendments and its extracts on the growth and development of rice increased as the order:peat >organic fertilizer' extract > organic fertilizer > rice straws > peat' extract > rice straws' extract. [Conclusion] The result showed that the effects of three amendments and its extracts on the growth and development of rice were not consistent under different concentration of cadmium. Therefore, we should consider the concentration of cadmium pollution in the paddy field, and then consider adding different modifiers and dosage in order to achieve the best control effect.

Key words: cadmium stress, rice, peat, rice straws, organic fertilizer, extract

中图分类号: 

  • X592