位置:成果数据库 > 期刊 > 期刊详情页
纳米沸石对大白菜镉吸收及土壤有效镉含量的影响
  • ISSN号:1672-2043
  • 期刊名称:《农业环境科学学报》
  • 时间:0
  • 分类:X53[环境科学与工程—环境工程]
  • 作者机构:西南大学资源环境学院,重庆400715
  • 相关基金:现代农业产业技术体系建设专项(Nycytx-25); 国家自然科学基金项目(20477032); 国家科技支撑计划项目(2007BAD87B10)
中文摘要:

通过大田试验研究了纳米沸石和普通沸石施用量(11 250、22 500、45 000 kg·hm~(-2))对大白菜产量、品质及镉吸收和土壤全镉及有效镉含量的影响。结果表明,施用纳米沸石和普通沸石显著提高了大白菜产量(鲜重),分别比对照增加了21.3%~35.2%和16.1%~31.8%。普通沸石以45 000 kg·hm~(-2)施用量处理产量最高,纳米沸石以22 500 kg·hm~(-2)施用量处理产量最高。纳米沸石和普通沸石中低施用量(≤22 500 kg·hm~(-2))提高了大白菜氨基酸、还原糖和Vc含量。纳米沸石和普通沸石分别使大白菜地上部镉含量降低了19.3%~37.4%和9.9%~16.2%,使根部镉含量分别降低了8.1%~27.9%和17.3%~25.4%。施用纳米沸石和普通沸石显著降低了土壤有效镉含量,且降低效果随沸石施用量的增加而增加。纳米沸石和普通沸石施用量与土壤有效镉含量存在极显著负相关关系(r=-0.591,P〈0.01),与大白菜地上部和根部镉含量也存在极显著的负相关关系(r=-0.697,-0.766;P〈0.01)。与普通沸石相比较,纳米沸石增加大白菜产量、降低大白菜镉含量及土壤有效镉含量的效果更好。

英文摘要:

Field experiments were carried out to investigate the effect of nanozeolite and ordinary zeolite at the amounts of 11 250, 22 500 and 45 000 kg·hm~(-2)on the yield and cadmium uptake by Chinese cabbage, and available cadmium contents in soil. The results showed that nanozeolite and ordinary zeolite could increase the yield of Chinese cabbage by 21.3%~35.2% and 16.1%~31.8%, respectively. The highest yield of Chinese cabbage was found at nanozeolite application amount of 22 500 kg·hm~(-2)and ordinary zeolite application amount of 45 000kg·hm~(-2), respectively. Nanozeolite and ordinary zeolite(≤22 500 kg·hm~(-2))increased the contents of amino acids, reducing sugar and Vc in Chinese cabbage. The contents of cadmium in shoots and roots revealed the reduction by 19.3%~37.4% and 9.9%~16.2% after nanozeolite and ordinary zeolite treatments, respectively. The application of nanozeolite and ordinary zeolite significantly reduced available cadmium content in soil in a dose-dependent manner. The application amount of zeolite showed significantly negative relationships with available cadmium content in soil(r=-0.591, P0.01), and were extremely negatively correlated with cadmium content in shoots and roots of Chinese cabbage(r=-0.697,-0.766; P0.01). More obvious effects on increasing the yield of Chinese cabbage, and reducing cadmium content in Chinese cabbage and available cadmium content in soil were observed during nanozeolite treatments than those during ordinary zeolite treatments.

同期刊论文项目
同项目期刊论文
期刊信息
  • 《农业环境科学学报》
  • 北大核心期刊(2011版)
  • 主管单位:中华人民共和国农业部
  • 主办单位:农业部环境保护科研监测所 中国农业生态环境保护协会
  • 主编:李文华
  • 地址:天津市南开区复康路31号
  • 邮编:300191
  • 邮箱:caep@vip.163.com
  • 电话:022-23674336 23006209
  • 国际标准刊号:ISSN:1672-2043
  • 国内统一刊号:ISSN:12-1347/S
  • 邮发代号:6-64
  • 获奖情况:
  • 全国中文核心期刊,列于被引频比最高的中国科技期刊500名之内
  • 国内外数据库收录:
  • 俄罗斯文摘杂志,美国化学文摘(网络版),英国农业与生物科学研究中心文摘,美国剑桥科学文摘,中国中国科技核心期刊,中国北大核心期刊(2008版),中国北大核心期刊(2011版),中国北大核心期刊(2014版)
  • 被引量:34877