土施超富集植物秸秆对荠菜生长及镉积累的影响

胡容平; 石军; 黄廷友; 林立金

doi:10.13961/j.cnki.stbctb.2015.05.106

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土施超富集植物秸秆对荠菜生长及镉积累的影响

试验研究

- 土施超富集植物秸秆对荠菜生长及镉积累的影响
- Effects of Applying Hyperaccumulator Straw in Soil on Growth and Cadmium Accumulation of Capsella Bursa-pastoris
- 水土保持通报 2015年35卷第5期页码：217-221
- 作者机构：
  
  1. 四川省农业科学院植物保护研究所/农业部西南作物有害生物综合治理重点实验室,四川,成都,610066
  2. 绵阳市农业科学研究院,四川,绵阳,621023
  3. 四川农业大学果蔬研究所,四川,成都,611130
- 作者简介：
- 基金信息：
  
  四川省科学技术厅应用基础项目"四川几种重要药用植物病害调查及川芎根腐病防治研究"(2014JY0046);四川省农业科学院青年资助项目"四川猕猴桃储藏期病害主要种类、发生特点及防治技术研究"(2014CXSF-018)
- DOI：10.13961/j.cnki.stbctb.2015.05.106
  中图分类号：
- 纸质出版：2015
- 稿件说明：
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胡容平, 石军, 黄廷友, 等. 土施超富集植物秸秆对荠菜生长及镉积累的影响[J]. 水土保持通报, 2015,35(5):217-221.

HU Rongping, SHI Jun, HUANG Tingyou, et al. Effects of Applying Hyperaccumulator Straw in Soil on Growth and Cadmium Accumulation of Capsella Bursa-pastoris[J]. Bulletin of Soiland Water Conservation, 2015, 35(5): 217-221.
胡容平, 石军, 黄廷友, 等. 土施超富集植物秸秆对荠菜生长及镉积累的影响[J]. 水土保持通报, 2015,35(5):217-221. DOI： 10.13961/j.cnki.stbctb.2015.05.106.

HU Rongping, SHI Jun, HUANG Tingyou, et al. Effects of Applying Hyperaccumulator Straw in Soil on Growth and Cadmium Accumulation of Capsella Bursa-pastoris[J]. Bulletin of Soiland Water Conservation, 2015, 35(5): 217-221. DOI： 10.13961/j.cnki.stbctb.2015.05.106.

摘要

[目的] 研究超富集植物秸秆对富集植物重金属积累的化感作用

为镉污染土壤的植物修复研究提供参考。[方法] 通过在镉污染土壤中施用镉超富集植物[(红果黄鹌菜Youngia erythrocarpa)、三叶鬼针草(Bidens pilosa)、少花龙葵(Solanum americanum)和豨莶(Siegesbeckia orientalis)]秸秆

研究了4种镉超富集植物秸秆施入土壤对镉富集植物荠菜生长及镉积累的影响。[结果] 4种镉超富集植物秸秆施入土壤均提高了荠菜地上部分生物量、总生物量和抗性系数

同时提高了荠菜叶片SPAD值(绿色度)。土施红果黄鹌菜秸秆提高了荠菜根系、茎、叶片及地上部分的镉含量

分别比各自对照高11.81%

102.07%

12.00%和54.95%

同时也提高了土样有效态镉含量

其余3种处理均低于各自对照。土施红果黄鹌菜秸秆的荠菜地上部分和整株的镉积累量均高于对照

分别为42.11和54.74μg/株

比各自对照高83.09%和54.11%

而其余3种处理的镉积累量均低于对照。[结论] 土施红果黄鹌菜能够提高荠菜对土壤镉的积累

有利于提高荠菜对镉污染土壤的修复效果。

Abstract

[Objective] The objective of this paper is to study the allelopathy effects of hyperaccumulator straw on heavy metal accumulation of accumulator in order to provide basis for the study of phytoremediation of cadmium-contaminated soil.[Methods] By applying different straws of hyperaccumulators(Youngia erythrocarpa

Bidens pilosa

Solanum photeinocarpum and Siegesbeckia orientalis) in cadmium contaminated soil

the effects of hyperaccumulator straw on growth and cadmium accumulation of Capsella bursa-pastoris were studied.[Results] The above-ground biomass

total biomass

resistance coefficient and leaf SPAD(soil and plant analyzer development) value of C. bursa-pastoris was increased by applying four Cd-hyperaccumulators straws in soil

compared with the control treatment. By applying straw of Y. erythrocarpa in soil

the cadmium contents in root

stem

leaf and above-ground part of C. bursa-pastoris were increased by 11.81%

102.07%

12.00% and 54.95%

respectively

compared with the control treatment. The available cadmium concentration in soil was also increased. By applying the straws of B. pilosa

S. photeinocarpum and S. orientalis in soil

cadmium content in C. bursa-pastoris was decreased. By applying straw of Y. erythrocarpa in soil

the cadmium accumulation in above-ground part and whole plant of C. bursa-pastoris was 42.11 and 54.74μg/plant

which was 83.09% and 54.11% greater than that in the control treatment

respectively. By applying the straws of B. pilosa

S. photeinocarpum and S. orientalis in soil

cadmium accumulation in C. bursa-pastoris was decreased.[Conclusion] Applying the straw of Y. erythrocarpa in soil can improve the cadmium accumulation of C. bursa-pastoris

which is beneficial to the remediation of soil contaminated by cadmium.

关键词

Keywords

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