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中国农学通报

中国农学通报 ›› 2020, Vol. 36 ›› Issue (20): 72-76.doi: 10.11924/j.issn.1000-6850.casb20190400038

所属专题： 土壤重金属污染； 水稻

• 资源·环境·生态·土壤·气象 • 上一篇    下一篇

不同品种紫云英对镉污染土壤水稻生长累积效应的研究

范美蓉1,2, 张春霞1,2, 廖育林2,3, 谢佰承4, 鲁艳红2,3, 文吉辉5, 聂军2,3()   

  1. 1长沙环境保护职业技术学院,长沙 410001
    2农业农村部湖南耕地保育科学观测实验站,长沙 410125
    3湖南省土壤肥料研究所,长沙 410125
    4湖南省气象科学研究所,长沙 410118
    5湖南省植物保护研究所,长沙 410125
  • 收稿日期:2019-04-24 修回日期:2019-10-23 出版日期:2020-07-15 发布日期:2020-07-20
  • 通讯作者: 聂军
  • 作者简介:范美蓉,女,1977年出生,湖南安乡人,副教授,博士,主要从事环境科学与工程研究和教学。通信地址：410004 湖南省长沙市雨花区井圭路10号,Tel：0731-85622793,E-mail：fanmeirong123456@126.com。
  • 基金资助:
    湖南省科技计划项目“长江中游稻区（湖南稻区）重金属镉污染监测与治理技术研究”(2016NK2197);湖南省科技计划项目“功能型紫云英新品种选育及高效栽培关键技术研究与示范”(2017NK2372);湖南省自然科学基金项目“镉中低污染稻田‘赤泥+紫云英’联合修复技术与效应研究”(2019JJ70015);国家绿肥产业技术体系项目“水田及水生绿肥栽培岗位”(CARS-22-G-11);农业农村部湖南耕地保育科学观测实验站开放基金项目“紫云英绿肥利用对Cd污染稻田修复的效应研究”(2016-01)

Chinese Milk Vetch Varieties: Accumulation Effect on the Rice Growth in Cadmium Contaminated Soil

Fan Meirong1,2, Zhang Chunxia1,2, Liao Yulin2,3, Xie Baicheng4, Lu Yanhong2,3, Wen Jihui5, Nie Jun2,3()   

  1. 1Changsha Environmental Protection College, Changsha 410001
    2Scientific Observation and Experimental Station of Arable Land Conservation (Hunan), Ministry of Agriculture and Rural Affairs, Changsha 410125
    3Soil and Fertilizer Institute of Hunan Province, Changsha 410125
    4Meteorological Science Institute of Hunan Province, Changsha 410118
    5Hunan Institute of Plant Protection, Changsha 410125
  • Received:2019-04-24 Revised:2019-10-23 Online:2020-07-15 Published:2020-07-20
  • Contact: Nie Jun

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摘要：

旨在研究不同品种紫云英绿肥对镉污染地区水稻生长及土壤质量的影响。结果表明,与2个对照组相比,翻压紫云英显著提高了土壤溶液pH,降低Eh(P<0.01),也使土壤有效态镉的含量显著降低,减少了水稻在生长过程中对镉的累积,以‘湘紫3号’紫云英品种效果最为明显,与单施化肥处理相比,土壤有效镉含量降低了21.9%,植株稻草镉含量降低了39.1%,稻谷镉含量降低了43.5%,在4个品种中降幅均为最大值。不同品种紫云英翻压均能促进水稻的生殖生长,能有效提高水稻的产量,各处理间水稻的农艺性状指标和产量指标均无显著性差异。因此,选择降镉效果最佳的‘湘紫3号’紫云英品种,能够更好地降低农作物对镉的吸收,提高产品的安全性。

关键词: 紫云英品种, 水稻, 镉, 有效性, 农艺性状, 生长

Abstract:

The paper aims to study the effects of different Chinese milk vetch varieties on rice growth and soil quality in cadmium contaminated soil. The results showed that: compared with the two control groups, returning Chinese milk vetch significantly increased the pH value of soil solution, and decreased the Eh value (P<0.01), lowered the content of soil available Cd significantly, cut down the accumulation of Cd in rice growth process; the effect of ‘Xiang purple 3’ treatment was most obvious, compared with single chemical fertilizer treatment, the soil effective cadmium content under ‘Xiang purple 3’ treatment was decreased by 21.9%, the Cd content in straw and rice was reduced by 39.1% and 43.5%, respectively, the falling of Cd content in rice was the maximum among the 4 varieties. Different varieties of Chinese milk vetch could promote the reproductive growth of rice and effectively increase the yield of rice, but there was no significant difference in agronomic traits and yield index among the treatments. In conclusion, ‘Xiang purple 3’ with the best effect on decreasing Cd can better reduce the absorption of Cd in crops and improve the safety of the products.

Key words: varieties of Chinese milk vetch, rice, cadmium, effectiveness, agronomic characters, growth

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